Интегральные схемы

ATECC608A-MAHDA-T

ATECC608A-MAHDA-T ECC Secure Authentication IC | Microchip

The Microchip ATECC608A-MAHDA-T is an ECC secure authentication IC with hardware-based key storage and cryptographic accelerators for authentication, signing, verification, and key agreement. It is configured for I2C communication and is packaged as an 8-pad, 2 x 3 x 0.6 mm thermally enhanced plastic UDFN. The device stores up to 16 keys, certificates, or miscellaneous secure data objects in its EEPROM array. A CryptoAuthentication IC is a specialized security integrated circuit used to protect cryptographic keys and perform security operations without exporting sensitive material to the host processor. The ATECC608A belongs to the Microchip CryptoAuthentication family and combines protected EEPROM with hardware cryptographic accelerators, helping designers implement secure boot, device authentication, anti-counterfeiting, and ecosystem-control functions. The verified component information identifies ECC/ECDSA/ECDHE capability, I2C interface support, and protected storage for up to 16 keys, certificates, or data objects. Hardware-supported asymmetric signing, verification, and key agreement can reduce the software burden on the host MCU while preserving cryptographic material inside the secure device. The exact operating limits, memory-map details, security-certification status, and electrical timing values require confirmation in the manufacturer datasheet. Typical uses include network and IoT endpoint security, secure boot, encrypted message handling, key generation for software downloads, anti-counterfeiting, and secure-element-based product identity. The device is especially suitable when a system needs an I2C-connected hardware security anchor for credentials, device certificates, or firmware authenticity decisions. In a design, place the UDFN close to the host controller and route I2C signals with appropriate pull-up and decoupling arrangements. Follow the manufacturer reference schematic and package land pattern, confirm clock and signal timing, and protect provisioning credentials during manufacturing. Do not assume that software migration or device replacement preserves secrets without validating the new device's provisioning and migration process. This page combines verified distributor identity, package, interface, storage, and cryptographic-use information with practical sourcing and migration context. It intentionally distinguishes confirmed facts from parameters that are not present in the supplied verified data.

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ATECC608B-MAHCZ-S

ATECC608B-MAHCZ-S - ECC Secure Element SWI UDFN-8 | Microchip

The Microchip Technology ATECC608B-MAHCZ-S is a CryptoAuthentication cryptographic secure element (authentication IC) with ECC/ECDH hardware crypto acceleration, single-wire interface (SWI) communication, and secure hardware-based key storage, housed in an 8-pin UDFN (2x3 mm) surface-mount package. Pricing starts from approximately $1.17 per unit as of 2026-10-12 (LCSC). A secure element is a dedicated cryptographic co-processor that stores secret keys in tamper-resistant hardware, isolated from the main MCU or MPU. Within the power management and system-security hierarchy, it sits alongside microcontrollers and interface ICs, offloading asymmetric cryptography, secure boot validation, and anti-cloning duties that would otherwise expose keys in software. The ATECC608B belongs to Microchip's CryptoAuthentication family, which spans the ATECC508A, ATECC608A, and ATECC608B generations. Key features include NIST-standard P-256 elliptic-curve support for ECDSA sign/verify and ECDH key agreement, hardware SHA-256 hashing and HMAC, up to 16 configurable key storage slots, and an EUI-48/EUI-64 based serial number for device identity. The MAHCZ suffix denotes the SWI (single-wire) communication interface, requiring only a single GPIO pin over a wide voltage range. Technical depth: the device consumes extremely low power, making it well suited to battery-powered IoT endpoints. Its secure hardware key storage prevents key extraction even under sophisticated physical attacks. The ATECC608B provides security enhancements over the ATECC608A while remaining fully backwards compatible in commands, packages, and pinout, per Microchip's migration application note DS40002237A. Typical applications include IoT network endpoint authentication, secure boot firmware validation, anti-cloning protection for consumables and peripherals, and TLS client certificate storage for cloud connectivity in smart-home and industrial devices. Design consideration: choose the MAHCZ (SWI) variant only when a single-GPIO bus is required; the MAHDA variant supports standard I2C up to 1 Mbps. Reserve a GPIO on your MCU for SWI communication and plan provisioning during manufacturing. This page synthesizes distributor pricing, drop-in alternatives, pinout, and practical design notes not found in the manufacturer datasheet, providing unique cross-reference value for engineers and buyers.

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ATECC608B-SSHDA-B

ATECC608B-SSHDA-B - CryptoAuthentication IC, I2C, 8-SOIC | Microchip

The Microchip Technology ATECC608B-SSHDA-B is a member of the CryptoAuthentication family of high-security cryptographic devices that combine hardware-based key storage with hardware cryptographic accelerators. Housed in an 8-pin SOIC (3.90 mm) package, it integrates an ECC-P256 engine supporting ECDH and ECDSA, an AES-128 hardware accelerator, SHA-256 hashing, and a hardware random number generator. The device communicates with a host MCU over I2C at up to 1 Mb/s and operates from a 2.0 V to 5.5 V supply across the -40 °C to +85 °C industrial temperature range. A cryptographic co-processor is a dedicated hardware block that offloads mathematically intensive security operations from a microcontroller, isolating private keys inside a tamper-resistant silicon boundary so they never appear in host memory. Within the system hierarchy, the ATECC608B sits at the secure-element layer above general-purpose MCUs, complementing TLS software stacks with hardware root-of-trust primitives. Microchip's CryptoAuthLib software library abstracts I2C transactions so designers can issue sign/verify, key agreement, and AES-GCM commands with a few function calls. Key features include protected storage for up to 16 keys/certificates/data slots, FIPS186-3 ECDSA sign/verify at P-256, NIST SP800-56A ECDH key agreement, AES-128-GCM/ECB encryption/decryption, monotonic counters, and secure boot validation hooks. Each slot has configurable access permissions and can be locked permanently, making the device a turnkey root-of-trust for IoT endpoint authentication, anti-counterfeiting, and IP protection. The internal architecture pairs a secure EEPROM key store with hardware accelerators for ECDSA, ECDH, AES-128, and SHA-256, all fronted by a true random number generator (TRNG) that meets NIST SP800-22 guidelines. Internal voltage and tamper monitors can zeroize keys on detected glitches, while GPIO with optional secure signal assertions enable host MCU wake-up or LED feedback during provisioning. Typical applications include IoT node authentication, secure boot validation for Linux/MCU firmware, accessory and consumable anti-cloning, TLS handshake acceleration, message encryption with AES-GCM, and IP/feature enablement for licensed products. Designers add the ATECC608B to existing designs via a 2-wire I2C bus, requiring only VCC, GND, SDA, and SCL pull-ups. When designing with this device, allocate a unique 7-bit I2C address (factory default is 0x60) and respect the GPIO default-state behavior at power-up. Use Microchip's CryptoAuthLib and the AT88CK590 kit for provisioning and follow the migration guide AN5078 if upgrading from ATECC608A.

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ATECC608B-SSHDA-T

ATECC608B-SSHDA-T - CryptoAuthentication IC, SOIC-8 | Microchip

The Microchip Technology ATECC608B-SSHDA-T is a member of the CryptoAuthentication™ family of high-security cryptographic devices that combine world-class hardware-based key storage with hardware cryptographic accelerators. It is offered in an 8-pin SOIC package with I²C interface, supports ECC-P256 (ECDH and ECDSA), SHA-256, AES-128-GCM, and provides a hardware random number generator (NIST SP 800-22 compliant) plus a monotonic counter. The device integrates 10Kb secure EEPROM for keys, certificates, and data, with built-in tamper resistance including voltage glitch and temperature tamper detection. What is a CryptoAuthentication IC? A CryptoAuthentication IC is a specialized secure element that offloads cryptographic operations from the main microcontroller and protects private keys in hardware-isolated storage. These devices sit at the foundation of the security hierarchy: CryptoAuthentication IC → secure element → hardware root-of-trust → embedded security subsystem. Unlike software-based cryptography, hardware secure elements ensure private keys never leave the silicon, dramatically reducing attack surface for IoT devices, network accessories, and edge nodes where MCU resources are limited but trust is non-negotiable. The ATECC608B features a full ECDH/ECDSA engine operating in approximately 13 ms for sign operations and SHA-256/HMAC hardware acceleration, dramatically reducing cryptographic workload on host MCUs. It supports standard I²C up to 1 Mbps with configurable I²C addresses, an optional single-wire interface (SWI) variant, and operates from 2.0V to 5.5V supply with deep-sleep current as low as <150 nA. Internal EEPROM is locked through one-way fuses, preventing post-deployment firmware or key extraction by physical or remote attacks. Typical applications include Matter/Thread device authentication, secure boot for Linux/Windows IoT edge nodes, AWS IoT multi-account registration, IP protection and firmware anti-cloning, accessory and consumable authentication (medical, industrial, printer cartridges), and TLS 1.2/1.3 mutual authentication offload for resource-constrained MCUs. The device ships with Microchip's CryptoAuthLib, which provides a unified API across the entire CryptoAuthentication family. When designing with the ATECC608B, ensure I²C pull-ups are present (the SOIC version uses standard I²C, not SWI), allocate a dedicated 7-bit I²C address, and provision keys via the Microchip CryptoEvaluation kit during development. The GPIO pin can be used as a power-on reset indicator or wake source. Migration from ATECC608A is software-compatible via CryptoAuthLib. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not consolidated in the manufacturer datasheet alone.

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ATF1502AS-10AU44

ATF1502AS-10AU44 - 32-Macrocell 5V ISP CPLD, 10ns, TQFP-44 | Microchip

The Microchip ATF1502AS-10AU44 is a 5V, 32-macrocell in-system programmable (ISP) Complex Programmable Logic Device (CPLD) housed in a 44-pin TQFP package, offering 10 ns pin-to-pin propagation delay and up to 36 usable inputs/I/Os in a 750-gate density footprint. Built on electrically-erasable (E2PROM) non-volatile memory technology, the ATF1502AS-10AU44 retains its configuration without external storage and supports field re-programmability through a standard 4-pin JTAG interface. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocells, a centralized AND array, and a programmable interconnect on a single chip. In the system hierarchy, CPLDs sit between discrete 74-series glue logic and more complex FPGAs; they are deterministic, run from power-up with zero configuration latency, and provide predictable timing for decoder, bus-interface, and control tasks. The ATF1502AS family targets 5V legacy system designs where modern 3.3V FPGAs are not compliant with the input voltage rails. Key differentiating features of the ATF1502AS-10AU44 include 32 macrocells, up to 32 bidirectional I/O pins plus 4 dedicated input pins, an enhanced routing switch matrix that improves usable gate count, pin-to-pin propagation delay of 10 ns, system frequency up to 100 MHz, and zero-power standby support. The device offers fast in-system programming (ISP) via JTAG, allowing firmware revision updates without removing the part from the board. Power supply operates from 4.5V to 5.5V with typical I/O 5V tolerance. The ATF1502AS-10AU44 is pin-compatible with industry-standard 44-pin TQFP CPLDs and slots into legacy footprints where migration from older Atmel and third-party 32-macrocell CPLDs is required. The enhanced routing switch matrix increases the odds of successful pin-locked design modifications compared to first-generation CPLD architectures. Typical applications include 5V bus interface bridging, address decoding for legacy microcontrollers, glue logic replacement in industrial controllers, I/O expansion for 8-bit and 16-bit MCUs, and power-on sequencing logic in mixed-voltage systems. The 5V-tolerant I/Os allow direct connection to TTL/CMOS logic without external level shifters. For designers, the most critical design tip is to budget adequate decoupling (100 nF X7R plus 10 uF bulk) right at the VCC pins, because CPLD outputs can drive simultaneous switching edges that inject supply noise. Designers should also confirm that any migrated 3.3V firmware does not violate the 5.5V absolute-maximum VCCIO rating during in-circuit programming. This page consolidates distributor pricing, verified same-package drop-in alternatives, and applied design notes not found in the standalone manufacturer datasheet, helping engineers accelerate 5V CPLD selection and sourcing decisions.

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ATF1504ASL25AU44

ATF1504ASL-25AU44 - 64 Macrocells, 25ns, 5V ISP CPLD | Microchip

The Microchip Technology ATF1504ASL-25AU44 is a 5V, high-performance, In-System Programmable (ISP) Complex Programmable Logic Device (CPLD) from the ATF15xx family, delivering 64 macrocells in a 44-pin TQFP (10x10 mm) surface-mount package. It offers 1.5K equivalent gates, a maximum propagation delay of 25 ns (tPD), and 32 user I/O pins, operating from a single 4.5 V to 5.5 V supply across the industrial -40 C to +85 C temperature range. A CPLD (Complex Programmable Logic Device) is a non-volatile, reprogrammable digital logic IC that combines the instant-on, deterministic timing of PAL/GAL architectures with denser logic capacity, sitting in the programmable logic hierarchy between simple SPLDs and larger FPGAs. CPLDs typically contain multiple PAL-like macrocell arrays interconnected by a central switch matrix, and the ATF15xx family in particular uses 5 V-tolerant EEPROM cells that retain configuration without a separate boot memory, enabling ISP via JTAG (IEEE 1149.1). Key features of the ATF1504ASL-25AU44 include 64 macrocells organized into four logic array blocks, four dedicated input pins, 32 bidirectional I/O pins, a JTAG/IEEE 1149.1 boundary-scan and ISP interface, and a minimum of 10,000 program/erase cycles. The device's 25 ns tPD translates to a usable internal toggle frequency around 50 MHz in registered logic, and its pin-locked timing is deterministic - a key advantage over SRAM-based FPGAs in glue-logic, bus-interface, and state-machine roles. Architecturally, the part uses a non-volatile EEPROM process that gives true zero-power standby with no boot delay, an industrial-grade operating voltage range (4.5 V to 5.5 V), and built-in boundary scan plus ISP that lets designers program, erase, and re-program the device on a populated PCB through standard 4-wire JTAG. Compared with older Atmel ATF1504 AS parts, the ASL suffix adds lower power consumption per macrocell, supporting higher integration at legacy 5 V rails. Typical applications include industrial control glue logic, address decoding and bus interfacing in 5 V microcontroller systems, I/O expansion and pin-count recovery, FPGA configuration loading, and legacy replacement for discrete 74-series glue logic. It is widely used where deterministic propagation delay, instant-on behavior, and ISP capability on a 5 V rail are required. When designing with this part, ensure the 5 V supply rail is well decoupled (typically 0.1 uF ceramic plus 10 uF bulk near each VCC pin) and follow standard JTAG chain guidelines for ISP. Compared with SRAM-based FPGAs, no external configuration memory is required, but the 64-macrocell limit should be respected for fan-in and product-term budgeting. This page synthesizes distributor pricing (as of 2026-10-07), verified drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving a faster engineering decision path for the ATF1504ASL-25AU44.

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ATF1504ASL-25AU44

ATF1504ASL-25AU44 - 64-Macrocell 5V ISP CPLD, 25ns | Microchip

The Microchip Technology ATF1504ASL-25AU44 is a 64-macrocell, in-system programmable (ISP) complex programmable logic device (CPLD) with a 25 ns propagation delay and 60 MHz maximum clock frequency, housed in a 44-pin TQFP package. It operates from a single 4.5 V to 5.5 V supply and provides 32 inputs/I/Os (68 user I/O pins per the device datasheet summary), 64 registers, and 64 macrocells in a low-power "L" process variant. A complex programmable logic device (CPLD) is a non-volatile, electrically erasable digital logic IC that integrates multiple PAL-like macrocell arrays on a single die, with a programmable AND/OR interconnect fabric in between. CPLDs sit between simple SPLD/GAL devices and larger FPGAs in the programmable-logic hierarchy, and are used for glue logic, bus interfacing, state-machine decoding, and high-density combinatorial replacement where deterministic timing and instant-on behavior are required. The ATF15xx series in particular is a 5 V legacy family known for ISP and high pin-keeper drive strength. Key features of this part include 25 ns pin-to-pin propagation delay (tPD), 60 MHz maximum operating frequency, a minimum of 10,000 program/erase cycles, JTAG-based IEEE 1149.1 boundary-scan and ISP, pin-keeper circuits on inputs and I/Os, and programmable power management for low-power macrocell operation. The "L" suffix denotes the lower-power process option; "A" denotes the standard 44-pin TQFP package; "U44" specifies a green / Pb-free TQFP-44 package. The device is built on Microchip/Atmel's proven electrically-erasable (EE) technology, which gives non-volatile storage of the user logic - the part functions at power-up with no external configuration PROM. Architecturally, the four logic blocks each contain 16 macrocells feeding a connected global interconnect, with per-pin output enable, slew-rate, and pin-keeper options set during programming. Typical applications include 5 V bus interface and voltage-translation logic, address decoding and chip-select generation in legacy microprocessor systems, industrial control glue logic, state-machine replacement for discrete 74xx logic, and instant-on control logic in motor drives and instrumentation. The wide 5V nature tolerance and industrial -40C to +85C temperature range also suit harsh environment controllers. When designing with this device, ensure the JTAG chain order is maintained if multiple ATF1504ASL devices share TCK/TMS/TDI, and add a 0.1 uF decoupling capacitor near each VCC pin. The ISP programming voltage is generated internally, so no external 12 V programmer supply is required. Power sequencing is straightforward due to the non-volatile configuration. This page synthesizes Microchip product-page data, distributor pricing from DigiKey/Mouser, and engineering guidance for the ATF1504ASL family - information not found in the standalone datasheet.

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ATF16V8B-15PU

ATF16V8B-15PU - 15 ns 8-Macrocell 5V PLD | Microchip

The Microchip ATF16V8B-15PU is a 15 ns, 5 V, electrically erasable programmable logic device with eight macrocells, up to 16 inputs, eight I/Os, and eight registered outputs in a 20-pin PDIP package. It emulates the industry-standard 20-pin PAL architecture and provides 250 gates for compact legacy control, decoding, address-selection, and interface logic. A simple programmable logic device, or SPLD, combines programmable AND-array routing with fixed OR logic in a small CMOS package. Within the broader hierarchy, the ATF16V8B belongs to PLD, simple programmable logic, digital logic IC, and semiconductor categories. Its electrically erasable Flash configuration supports nonvolatile logic, while the -15 designation identifies the verified 15 ns device used where faster propagation timing than slower legacy options is useful. Key verified features include eight macrocells and a 250-gate equivalent capacity. The device supports as many as 16 inputs and eight I/Os, with eight registered outputs identified by distributor data. It operates from a nominal 5 V supply in a green package and uses electrically erasable Flash memory rather than fuse technology. Microchip also describes the ATF16V8B family as a superset of generic 16R8 architectures and as suitable for direct replacement of common 20-pin combinatorial PLDs, subject to logic, timing, and package checks. The ATF16V8B architecture gives each output eight allocated product terms and offers automatically configured operating modes for implementing comparatively complex logic. The 15 ns part is appropriate for legacy 5 V systems where logic depth, decoding latency, and compact implementation matter more than modern FPGA integration. A search result also identifies 62 MHz for this family, but the supplied data does not reconcile that figure with the 15 ns propagation grade, so it should not be treated as a guaranteed system-frequency specification without the full datasheet timing conditions. Typical uses include GAL16V8-compatible replacements, address and chip-select decoding, bus-interface qualification, industrial controller glue logic, keyboard or display decoding, and compact control sequencers. Programming normally requires a compatible JEDEC file, ATF16V8B device selection, and an electrically erasable PLD programmer such as TL866II+ with suitable adapter hardware. Designers should verify pinout, package, supply voltage, AC timing, and JEDEC fuse-map compatibility before substitution. The P suffix indicates the verified PDIP-20 mechanical option, so it must not be confused with PLCC or other ATF16V8 packages. Programming settings, output polarity, register bypass, and unused pins should be validated against the manufacturer datasheet and programmer documentation. This page combines verified Microchip family data, distributor specifications, GAL16V8 replacement guidance, commercial availability, and design-oriented replacement checks to provide engineering context beyond a basic distributor listing.

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ATF22V10C-10PU

ATF22V10C-10PU - 10-Macrocell 5V E2 PLD | Microchip

The Microchip Technology ATF22V10C-10PU is a 10-macrocell, electrically erasable programmable logic device operating from a nominal 5 V supply, with a 10 ns speed grade and a 24-pin through-hole PDIP package. It provides 500 programmable gates according to the Mouser product listing and combines CMOS logic with electrically erasable Flash-memory configuration technology. The device is intended for compact control, decoding, address mapping, glue logic, and legacy GAL22V10-compatible designs. A simple programmable logic device is a semiconductor that stores a Boolean function as a configuration rather than implementing that function through fixed gates. The ATF22V10C belongs to the SPLD and PLD hierarchy, where product terms fuse map, macrocell, and erasable Flash configuration describe how each of its 10 logic macrocells implements registered or combinational logic. This makes the device useful as bridge logic between larger processors, FPGAs, memory devices, and industrial or communications systems. Verified product information identifies 10 macrocells, 500 gates, a 5 V supply, a 10 ns speed designation, and a 24-pin PDIP package. The manufacturer datasheet states that the ATF22V10C family reaches speeds down to 5 ns and low typical power dissipation, while the exact ATF22V10C-10PU operating-temperature limits, current consumption, I/O counts, and AC timing values are not supplied in the verified excerpts. Those values must therefore be confirmed in the manufacturer datasheet before a new design is released. The device architecture is appropriate for deterministic control paths, fuse-map decoding, bus-interface qualification, and small state machines. Microchip support identifies the ATF22V10C family as pin-to-pin and JEDEC-fusemap-compatible replacements for GAL22V10 devices when AC and DC behavior is compatible. Because this -10PU variant is a 10 ns speed grade, systems must preserve setup and timing margins rather than treating the number as a universal operating frequency. Typical uses include industrial control, legacy peripheral emulation, address decoding, signal conditioning, test adapters, and compact control logic where 500 gates of programmable integration are sufficient. Mechanically, the PDIP format supports conventional through-hole assembly, prototyping, repair, and legacy boards. Surface-mounted systems should not assume that another ATF22V10C package is interchangeable because package drawings, pin availability, and assembly requirements differ. The main design consideration is configuration compatibility. Confirm the JEDEC fuse map, pin assignments, supply voltage, timing grade, output-drive assumptions, and unused-pin treatment against the exact manufacturer datasheet. A nominal 5 V part should not be assumed suitable for 3.3 V systems without an explicit rail-level specification. For production, validate programming algorithms, erase-and-program behavior, and system timing under worst-case supply and temperature conditions. This page combines verified manufacturer and distributor facts with explicit data gaps, package-aware replacement guidance, comparison parameters, and practical legacy-logic design notes. It is intended to accelerate component identification while preventing unverified electrical or lifecycle assumptions from entering a production BOM.

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ATF2500C-20GM

ATF2500C-20GM - 24 Macrocell 5V CPLD, 40-CerDIP | Microchip

The Microchip ATF2500C-20GM is a high-performance, high-density, electrically-erasable Complex Programmable Logic Device (CPLD) delivering 2,500 gates with 24 macrocells and 48 flip-flops in a 40-pin ceramic DIP (CerDIP) through-hole package. It operates from a single 5 V supply with a maximum pin-to-pin propagation delay of 20 ns, and is rated across -55 C to +125 C for high-stress embedded and industrial environments. What is a CPLD? A Complex Programmable Logic Device is a non-volatile, electrically-erasable programmable logic IC that sits between simple legacy PLDs (PAL/GAL) and larger FPGAs in the programmable logic taxonomy (PLD -> CPLD -> FPGA -> programmable logic -> semiconductor). CPLDs offer deterministic pin-to-pin timing, instant-on behavior, modest logic density, and are typically programmed via JTAG or ISP rather than loaded from external memory, which makes them well-suited for glue logic, bus decoding, state-machine control, and I/O expansion in cost-sensitive designs. Key features of the ATF2500C-20GM include a fully-connected AND-array logic architecture with 416 product terms, individually programmable macrocell output polarity, and two flip-flops per macrocell for sequential logic. The device supports JTAG-based IEEE 1149.1 boundary-scan testing, in-system programmability through the standard Atmel/Microchip tool chain, and is pin-compatible with several Atmel ATV2500 predecessors, easing migration from older designs. The ATF2500C family uses an electrically-erasable CMOS process with a proven cell architecture that delivers high gate utilization and predictable timing. Its 20 ns maximum pin-to-pin delay is adequate for decoder, address-mapping, interrupt-control, and peripheral-interface glue logic, while the EEPROM cells provide >10,000 erase/write cycles and support design iteration during development and field updates. Typical applications include industrial control boards, legacy bus-interface adapters, address decoding for microcontroller-based systems, state-machine controllers for motor drives, and glue logic in telecom, aerospace, and military systems where the -55 C to +125 C rating and ceramic package provide required reliability headroom. When designing with this device, plan JTAG signal integrity carefully, provide clean 5 V decoupling, and validate programming using the supported Atmel/Microchip device programmer chain. The ceramic DIP package supports through-hole assembly and socketed programming during development. This page synthesizes distributor pricing, parametric comparison data, and drop-in compatible alternatives for the ATF2500C-20GM that are not consolidated on a single manufacturer or distributor datasheet page.

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ATF750C-10PC

ATF750C-10PC - 10ns 10-Macrocell 24-Pin DIP CPLD | Microchip

The Microchip ATF750C-10PC is a 10-macrocell high-speed CMOS complex programmable logic device (CPLD) in a 24-pin PDIP through-hole package, with a 10 ns propagation delay and 750-gate logic capacity. It supersedes the classic 22V10 footprint family while remaining backward-compatible with the legacy Atmel ATV750/B/L pinout and JEDEC file. A CPLD (Complex Programmable Logic Device) is a non-volatile, electrically erasable logic IC that implements glue logic, state machines, decoder/encoder functions, and bus-interface adaptation between fixed-function silicon blocks. In the broader taxonomy, ATF750C sits at: CPLD -> programmable logic device (PLD) -> logic IC -> integrated circuit -> semiconductor. The 'C' variant uses standard CMOS I/O; the 'CL' suffix denotes a low-power Edge-sensing variant with 1 mA standby current for battery-backed designs. Key features include a 4.75V to 5.25V single-supply operating range, 10 bidirectional user I/O pins, ten flip-flops with macrocell output polarity control, and zero-power CMOS technology with 100 µA typical standby current. The device is specified across commercial 0°C to 70°C ambient temperature and offers in-system programmability via the Atmel/Microchip standard 4-pin IEEE 1149 JTAG interface on JTAG-equipped derivatives. The ATF750C-10PC uses a sum-of-products AND-OR architecture with feedback paths, output enable control, and buried macrocell registers. Compared to a discrete 22V10 design, it doubles the available product terms per macrocell and adds JEDEC-file compatibility with industry-standard 22V10 tools, simplifying conversion of older PLD designs. Its 10 ns pin-to-pin delay is suitable for decoder, address-mapping, and interrupt-controller tasks rather than high-speed datapath work. Typical applications include 22V10 replacement in legacy glue-logic designs, address decoding and chip-select generation in 8-bit and 16-bit microprocessor systems, bus arbitration and wait-state insertion logic, FPGA configuration I/O expansion, and industrial control logic in long-life equipment. The DIP-24 footprint and 5V supply make it convenient for through-hole prototypes and field replacements of obsolete 22V10 sockets. When designing with this device, plan for a 5V regulated supply and reserve one 0.1 µF decoupling capacitor per VCC pin pair. The 'PC' suffix indicates a commercial-temperature PDIP package - if the application requires industrial temperature range, choose the 'PI' variant; if surface-mount is needed, choose the 'SC' (SOIC-24) variant. Verify timing with the Atmel/Microchip WinCUPL or compatible third-party toolchain rather than relying on legacy datasheet delays. This page synthesizes distributor pricing tiers, drop-in same-package alternatives, application guidance and practical design notes not collected in any single manufacturer document, helping engineers evaluate the ATF750C-10PC against modern CPLD options.

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ATM90E36A-AU

ATM90E36A-AU - 3-Phase Energy Metering AFE, 48-TQFP | Microchip

The Microchip (formerly Atmel) ATM90E36A-AU is a high-performance, poly-phase energy metering analog front-end (AFE) IC designed for three-phase four-wire (3P4W, Y0) and three-phase three-wire (3P3W, Y or Δ) systems, supplied in a 48-pin TQFP (7x7 mm) package. It integrates seven input channels (three voltage, four current) and provides active, reactive, and apparent energy computation with 0.1% accuracy over a wide dynamic range of 1000:1. The device operates from a 3.3V analog/digital supply with 1.8V internal logic support. An energy metering AFE (analog front-end) is a mixed-signal IC that combines sigma-delta ADCs, anti-aliasing filters, a DSP-based measurement engine, and digital calibration blocks. AFEs sit between current transformers / shunt resistors / voltage dividers and a host microcontroller, converting the analog line signals into computed energy quantities, RMS values, THD, and phase angles. Within the broader hierarchy, an energy metering AFE belongs to power management ICs and is typically classified as a data acquisition / signal chain IC in industrial metering subsystems. Key features include a built-in digital signal processor (DSP) for on-chip computation of mean active/reactive/apparent power, RMS voltage and current, power factor, line frequency, and harmonic distortion (THD) up to the 21st order. The IC exposes three configurable CF (calibration frequency) pulse outputs for active/reactive/apparent energy, plus three zero-crossing detection pins (ZX0/ZX1/ZX2) and three interrupt/warning outputs (IRQ0, IRQ1, WarnOut). Communication to the host MCU is via an SPI/UART selectable serial interface at up to 4 Mbps. Architecturally, the ATM90E36A-AU uses simultaneous sampling 16-bit second-order sigma-delta ADCs per channel with integrated digital integrators, eliminating the need for an external analog anti-aliasing filter on each current channel. On-chip temperature compensation and per-phase gain/phase calibration registers allow meter class 0.5S / 1.0 accuracy. The -AU suffix indicates the industrial temperature grade (-40C to +85C). Typical applications include three-phase smart electricity meters, sub-metering in solar PV and energy storage inverters, EV charging station billing, data acquisition terminals, power quality monitors, and industrial three-phase motor energy dashboards. The wide 1000:1 dynamic range also supports both CT-based and Rogowski-coil current sensors. The TQFP-48 footprint suits both through-hole-friendly reflow designs and retrofit metering modules. When designing with this part, pay attention to the SPI/UART mode selection pin and ensure the host MCU firmware matches the configured baud rate or clock polarity; mismatch is the most common bring-up issue. Decouple AVDD/DVDD with low-ESR 10uF plus 100nF ceramic pairs and provide a clean analog ground island to achieve the rated accuracy at low currents. This page synthesizes distributor pricing, drop-in package alternatives, and practical calibration notes not found in the bare manufacturer datasheet, with cross-references verified against the M90E36A datasheet revision and Microchip product family page.

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ATMEGA103-6AC

ATMEGA103-6AC - 8-Bit AVR MCU, 6MHz, 128KB Flash | Microchip

The Microchip Technology ATMEGA103-6AC is an 8-bit AVR enhanced RISC microcontroller with 128KB of In-System Programmable Flash (64K x 16), operating at up to 6 MHz from a 5V supply, housed in a 64-pin TQFP (14 x 14 mm) package. A microcontroller is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, UART, and analog-to-digital converters onto one die. In the embedded systems hierarchy, the AVR ATmega family sits within the broader class of 8-bit microcontrollers, competing with architectures such as Microchip PIC, 8051, and Freescale HC08. The AVR architecture uses a Harvard structure with most instructions executing in a single clock cycle, giving high code efficiency and MIPS-per-MHz. Key features of the ATMEGA103-6AC include 121 powerful instructions (most single-cycle), 128KB of In-System Reprogrammable Flash, 4KB of internal SRAM, and 4KB of EEPROM for non-volatile data storage. The 6 MHz speed grade with a 5V supply targets cost-sensitive commercial-temperature applications where maximum performance is not required. The large 128KB Flash makes it suitable for firmware-heavy applications such as protocol stacks and menu-driven HMI code. Technically, the ATmega103 uses an AVR enhanced RISC core with 32 general-purpose working registers directly connected to the ALU, allowing two independent registers to be accessed in one instruction executed in one clock cycle. This delivers throughput approaching 1 MIPS per MHz. Peripherals typically include an 8-channel 10-bit ADC, multiple timer/counters with PWM, UART for serial communication, and SPI for synchronous serial interfacing. Typical applications include industrial control panels, building automation nodes, battery-backed instrumentation, and legacy embedded products whose firmware was designed around the ATmega103 memory map and pinout. Design consideration: the 5V-only supply and 6 MHz limit mean new designs should normally select the pin-compatible ATmega128 family, which runs to 16 MHz with richer peripherals while sharing the 64-TQFP footprint. This page synthesizes distributor pricing, verified drop-in alternatives such as the ATmega128 series, and practical sourcing notes not found in the manufacturer datasheet.

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ATMEGA103-6AI

ATMEGA103-6AI - 8-Bit AVR MCU, 6MHz, 128KB Flash | Microchip

The Microchip Technology ATMEGA103-6AI (originally Atmel) is an 8-bit AVR enhanced RISC microcontroller delivering 6 MHz maximum clock speed, 128 KB of in-system programmable Flash (64K x 16 organization), and 4 KB SRAM plus 4 KB EEPROM, housed in a 64-pin TQFP (14x14 mm) package operating from a 5V supply. An AVR microcontroller is a class of 8-bit Harvard-architecture MCUs in which program memory and data memory occupy separate address spaces, allowing most instructions to execute in a single clock cycle. Within the power-management hierarchy, the ATmega103 sits in the high-memory general-purpose microcontroller tier, sitting above the ATmega603 (64 KB Flash) sibling and pre-dating the pin-compatible ATmega128. Key features include the AVR enhanced RISC core with 121 powerful instructions (most single-cycle), 128 KB in-system reprogrammable Flash, 4 KB internal SRAM, 4 KB EEPROM, an 8-channel 10-bit ADC, UART, SPI, and a wide -40C to +85C industrial operating temperature range denoted by the 'I' suffix in the part number. The 6 MHz speed grade ('6') covers 5V operation. Architecturally, the ATmega103 uses a low-power CMOS process with a fast-access RISC register file of 32 general-purpose 8-bit registers directly connected to the ALU, enabling single-cycle execution that yields throughput of roughly 6 MIPS at 6 MHz. Nonvolatile memory is organized for in-system reprogramming via SPI, and the memory map includes external memory expansion capability. Typical applications include legacy industrial control systems, building automation controllers, instrumentation, and embedded products designed in the late 1990s and early 2000s that still require AVR compatibility at the 128 KB memory point. Design consideration: because this is a 5V-only part with a 6 MHz ceiling, new designs should evaluate the pin-compatible, higher-performance ATmega128 family instead; ATmega103-mode compatibility is retained in the ATmega128 via an M103C fuse. This page consolidates distributor pricing, drop-in alternative cross-references, and practical migration design notes not found together on the manufacturer datasheet.

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ATMEGA103L-4AC

ATMEGA103L-4AC - 8-Bit AVR MCU 4MHz 128KB TQFP-64 | Microchip

The Microchip Technology (Atmel) ATMEGA103L-4AC is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture, delivering up to 4 MHz operation at 2.7 V to 5.5 V with 128 KB of in-system programmable Flash, 4 KB of SRAM, and 64 KB of optional external memory addressing, housed in a 64-pin TQFP (14x14 mm) package. An 8-bit AVR microcontroller is a single-chip processor that executes most instructions in a single clock cycle using a Harvard-architecture RISC core with 32 general-purpose working registers. Within the system hierarchy, the MCU sits at the heart of an embedded system: flash memory stores program code, SRAM holds runtime variables, and integrated peripherals (UARTs, SPI, timers) interface with sensors and actuators, making a discrete CPU-plus-peripherals chipset unnecessary. Key features of the ATMEGA103L-4AC include 128 KB (64K x 16) of In-System Programmable (ISP) Flash, dual USARTs for serial communication, an SPI serial interface, two 8-bit and two 16-bit timers/counters with PWM outputs, and an 8-channel external interrupt capability. The AVR core's single-cycle instruction execution yields up to 4 MIPS at the 4 MHz maximum clock rating of this L-suffix (2.7 V to 5.5 V) commercial-grade device. Architecturally, the ATmega103 separates instruction and data buses, allowing fast register-to-register operations and efficient C-code compilation. External memory expansion (up to 64 KB) is supported through the multiplexed address/data bus on Ports A and C with WR/RD strobes on Port G, enabling designs requiring large data buffers. Typical applications include legacy industrial control panels, battery-powered instruments, building automation nodes, and embedded systems where the 4 MHz low-voltage rating supports long-battery-life or noise-limited 3.3 V designs. Design consideration: this part is end-of-life per distributor status data, so new designs should target the ATmega128 family, and existing boards should secure remaining stock or qualify a drop-in variant before replenishment runs out. This page adds value beyond the manufacturer datasheet by consolidating drop-in alternatives, lifecycle status, pricing context, and practical design notes in one engineer-facing reference.

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ATMEGA103L-4AI

ATMEGA103L-4AI - 8-Bit AVR MCU 128KB 4MHz TQFP-64 | Microchip

The Microchip Technology ATMEGA103L-4AI is an 8-bit AVR enhanced RISC microcontroller executing up to 4 MHz with 128KB (64K x 16) of in-system programmable FLASH and 4KB of SRAM, housed in a 64-pin TQFP (14x14 mm) package for industrial temperature ranges. An 8-bit AVR microcontroller is a single-chip processor built on the AVR enhanced RISC architecture, in which most of its powerful instructions execute in a single clock cycle. In the embedded-systems hierarchy it sits as the central processing element of a board, above discrete logic and below 32-bit application processors, and belongs to the broader family of microcontroller units (MCUs) that integrate program memory, data memory, timers, and communication peripherals on one die. Key features of the ATMEGA103L-4AI include 121 powerful instructions with mostly single-clock-cycle execution, 128K bytes of in-system reprogrammable FLASH program memory, and serial programming interfaces. The L suffix denotes the low-voltage variant, while the AI suffix denotes the industrial temperature grade supplied in the 64-lead thin quad flat package (TQFP-64). Architecturally, the device uses a Harvard-structure AVR core with separate program and data buses, allowing one instruction to be fetched while another is decoded and executed, which sustains throughput approaching 1 MIPS per MHz of clock. On-chip peripherals include an 8-channel 10-bit ADC, two 8-bit and two 16-bit timers with PWM, an SPI serial port, and a UART, providing complete system control in a single chip. Typical applications include legacy industrial control boards, instrument front panels, building automation nodes, and communication equipment controllers. The low-voltage operation suits 3.3V systems, while the industrial temperature range supports factory-floor environments where consumer-grade parts cannot survive. A key design consideration is that this part is mature/obsolete for new designs; engineers starting new boards should evaluate the pin-compatible ATmega128 family, which offers an ATmega103 compatibility mode and higher clock speeds. Verify FLASH endurance and programming-tool support before committing to new production. This page synthesizes distributor availability data, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet, with pricing referenced as of 2026-09-15.

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ATMEGA128-16AC

ATMEGA128-16AC - 8-bit AVR MCU 16MHz 128KB Flash | Microchip

The Microchip Technology ATMEGA128-16AC is a low-power 8-bit AVR microcontroller with 128KB in-system programmable Flash, 16MHz maximum clock frequency, and 4KB SRAM, housed in a 64-pin TQFP (14x14 mm) package. An 8-bit microcontroller is an integrated circuit that contains a processor core, memory, and programmable input/output peripherals on a single chip, executing control and data-processing tasks in embedded systems. Within the product hierarchy, the ATmega128 sits in the AVR ATmega family of enhanced RISC MCUs, which belongs to the broader class of general-purpose microcontrollers within semiconductor-based embedded processing. The AVR architecture executes most instructions in a single clock cycle, achieving throughput approaching 1 MIPS per MHz. Key features of the ATMEGA128-16AC include 133 powerful AVR instructions with mostly single-cycle execution, 32 general-purpose working registers, 128KB of ISP Flash with 10,000 write-cycle endurance, 4KB EEPROM rated for 100,000 write cycles, and a rich peripheral set: two 8-bit and two 16-bit timers with PWM, two USARTs, SPI, TWI (I2C-compatible), an 8-channel 10-bit ADC, analog comparator, watchdog timer, and JTAG boundary-scan/on-chip-debug support. Architecturally, the AVR uses a Harvard structure with separate program and data buses, allowing simultaneous Flash instruction fetch and data access. In-system programmability permits firmware updates after board assembly, and the boot Flash section supports self-programming for field upgrades. Typical applications include industrial control and automation nodes, embedded instrumentation and test equipment, motor-control and power-supervision systems, and legacy embedded designs requiring extended 128KB program memory with 5V-tolerant I/O. When designing with this part, remember the -16AC is the commercial temperature grade (0C to +70C); select the -16AI industrial grade for -40C to +85C environments, and budget for a 4.5V to 5.5V supply since 16MHz operation is not supported at 3.3V. This page synthesizes distributor pricing, drop-in alternatives, complete 64-pin pinout data, and practical design notes not found in the manufacturer datasheet alone.

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ATMEGA128-16AI

ATMEGA128-16AI - 8-bit AVR MCU 16MHz 128KB Flash | Microchip

The Microchip (Atmel) ATMEGA128-16AI is an 8-bit AVR RISC microcontroller with 128KB in-system programmable flash, 4KB SRAM, and 4KB EEPROM, executing up to 16 MIPS at 16MHz in a 64-pin TQFP (14x14 mm) package rated for the industrial temperature range. An 8-bit AVR microcontroller is a Harvard-architecture processor that fetches instructions and data over separate buses, allowing most of its 133 powerful instructions to execute in a single clock cycle. Within the product hierarchy, the ATmega128 sits in the ATmega family of flash-based microcontrollers - below the ATmega1280/1281 mega-AVR devices and above the ATmega64 - and functions as a complete embedded system-on-chip integrating CPU, memory, timers, communication peripherals, and an ADC. Key features include 128KB of self-programmable flash with a boot loader section, dual USARTs, SPI, TWI (I2C), an 8-channel 10-bit ADC, two 8-bit and two 16-bit timers with PWM, and an on-chip JTAG interface for boundary-scan and on-chip debugging. The device operates from 4.5V to 5.5V at 16MHz (per the -16 speed grade), delivering deterministic single-cycle execution without pipelining penalties. Architecturally, the ATmega128 combines 32 general-purpose working registers directly connected to the ALU, enabling true single-cycle arithmetic in one clock. XMEM interface support expands external memory addressing up to 64KB, useful for data-logging and legacy 8051-style designs migrating to AVR. Power management includes six sleep modes, allowing current consumption optimization from active operation down to microamp levels in power-down. Typical applications include industrial control and factory automation nodes, legacy ATmega103 PCB upgrades (the ATmega128 is 100% pin compatible with the ATmega103), embedded instrumentation, motor control panels, and building automation controllers where a mature, well-documented 5V MCU simplifies design. Design consideration: the -16 grade requires 4.5V to 5.5V operation; for 3.3V systems use the 8MHz ATmega128L variant instead, and budget JTAG pin sharing (PF4-PF7) when planning ADC channel allocation. This page synthesizes distributor pricing context, drop-in alternatives, pin-level design notes, and comparison data not found in a single manufacturer datasheet.

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ATMEGA128-16AJ

ATMEGA128-16AJ - 16MHz 128KB 8-Bit AVR MCU | Microchip

The Microchip Technology ATMEGA128-16AJ is an 8-bit AVR RISC microcontroller operating at 16 MHz, with 128 KB of programmable flash memory, 4 KB SRAM, and 4 KB EEPROM in a 64-pin TQFP package. It combines an 8-channel 10-bit ADC, JTAG debugging, and serial peripherals for embedded control systems. A microcontroller is a programmable integrated circuit that executes firmware, reads inputs, controls outputs, and manages embedded-system functions. This ATmega device belongs to the AVR family of 8-bit RISC microcontrollers, combining flash-backed program storage, SRAM, EEPROM, timers, serial communications, and analog conversion. Its architecture is designed for compact control, measurement, communication, and automation products. Verified product information identifies a 16 MHz AVR core, 128 KB flash memory, 4 KB SRAM, and 4 KB EEPROM. The ATMEGA128-16AJ also provides an 8-channel 10-bit ADC and JTAG interface. Its 64-TQFP package exposes the device's I/O and communication resources while supporting surface-mount PCB assembly. The AVR core provides an 8-bit processing platform with an instruction set designed for efficient embedded control. Program storage is 128 KB, while the 4 KB SRAM supports working variables and application state. The 4 KB EEPROM provides nonvolatile storage for parameters, calibration data, configuration values, and other information that must survive power removal. Typical applications include industrial controllers, building automation equipment, data-acquisition modules, motor and relay-control systems, communication equipment, and embedded instruments. The 10-bit ADC is suitable for analog sensor interfaces, while the JTAG interface supports hardware-assisted programming and debugging workflows. The exact peripheral availability and electrical limits should be confirmed against the manufacturer datasheet before design release. Designers should preserve the required power, decoupling, clock, programming, and JTAG connections, and should account for the 64-pin TQFP footprint and exposed ground requirements. The exact operating-voltage range, pin names, electrical timing values, and package-specific details are not present in the supplied verified data and are marked as needed below rather than inferred.

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ATMEGA128-16AN

ATMEGA128-16AN - 8-Bit AVR MCU 128KB 16MHz TQFP-64 | Microchip

The Microchip Technology ATMEGA128-16AN is an 8-bit AVR RISC microcontroller delivering up to 16 MIPS throughput at 16 MHz, with 128 KB of In-System Programmable FLASH, 4 KB SRAM, and 4 KB EEPROM, housed in a 64-pin TQFP (14x14 mm) package. It operates from 4.5V to 5.5V and supports on-chip JTAG debugging. An 8-bit AVR microcontroller is a single-chip processor built on the AVR enhanced RISC architecture, in which most of the 131 instructions execute in a single clock cycle. Within the system hierarchy, the microcontroller sits between simple logic ICs and application processors, integrating CPU, program memory, data memory, timers, and communication peripherals into one device for embedded control tasks. Key features include 53 general-purpose I/O lines, 32 general-purpose working registers, four flexible timers/counters with compare modes and PWM, and an 8-channel 10-bit A/D converter. Dual USARTs, a byte-oriented Two-Wire Interface (I2C-compatible), and a hardware SPI port provide multi-protocol connectivity for sensors, displays, and industrial networks. Technically, the fully static core sustains performance from DC to 16 MHz, while the Read-While-Write FLASH allows code updates during operation. An RTC with separate oscillator, JTAG boundary-scan, and an ATmega103 compatibility mode (via the M103C fuse) simplify legacy design migration. This version is rated at 16 MHz at 4.5-5.5V with a -40C to +85C industrial temperature rating. Typical applications include industrial automation control panels, HVAC and building-management systems, battery-monitoring instrumentation, and motor-control nodes using the PWM channels. Design consideration: for lowest power consumption in idle and power-down modes, configure unused I/O pins as inputs with internal pull-ups and use the power-reduction registers to clock-gate unused peripherals. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA128-16ANR

ATMEGA128-16ANR - 8-Bit AVR MCU 128KB 16MHz TQFP-64 | Microchip (Tape & Reel)

The Microchip Technology ATMEGA128-16ANR is an 8-bit AVR RISC microcontroller delivering up to 16 MIPS throughput at 16 MHz, with 128 KB of In-System Programmable FLASH, 4 KB SRAM, and 4 KB EEPROM, housed in a 64-pin TQFP (14x14 mm) package. It operates from 4.5V to 5.5V and supports on-chip JTAG debugging. An 8-bit AVR microcontroller is a single-chip processor built on the AVR enhanced RISC architecture, in which most of the 131 instructions execute in a single clock cycle. Within the system hierarchy, the microcontroller sits between simple logic ICs and application processors, integrating CPU, program memory, data memory, timers, and communication peripherals into one device for embedded control tasks. Key features include 53 general-purpose I/O lines, 32 general-purpose working registers, four flexible timers/counters with compare modes and PWM, and an 8-channel 10-bit A/D converter. Dual USARTs, a byte-oriented Two-Wire Interface (I2C-compatible), and a hardware SPI port provide multi-protocol connectivity for sensors, displays, and industrial networks. Technically, the fully static core sustains performance from DC to 16 MHz, while the Read-While-Write FLASH allows code updates during operation. An RTC with separate oscillator, JTAG boundary-scan, and an ATmega103 compatibility mode (via the M103C fuse) simplify legacy design migration. This version is rated at 16 MHz at 4.5-5.5V with a -40C to +85C industrial temperature rating. Typical applications include industrial automation control panels, HVAC and building-management systems, battery-monitoring instrumentation, and motor-control nodes using the PWM channels. Design consideration: for lowest power consumption in idle and power-down modes, configure unused I/O pins as inputs with internal pull-ups and use the power-reduction registers to clock-gate unused peripherals. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA128-16AU

ATMEGA128-16AU - 8-Bit AVR MCU, 128KB Flash, 16MHz | Microchip

The Microchip Technology ATMEGA128-16AU is a high-performance, low-power 8-bit AVR RISC microcontroller with 128KB of In-System Programmable Flash, 4KB SRAM, 4KB EEPROM, an 8-channel 10-bit ADC, and a JTAG interface for on-chip debugging, delivered in a 64-pin TQFP (14x14 mm) package operating at up to 16 MHz. An 8-bit AVR microcontroller is a single-chip processor built on the AVR enhanced RISC architecture, in which most instructions execute in a single clock cycle. Within the power-management and embedded-control hierarchy, it functions as the central computing element of a system, replacing discrete logic and analog control circuitry while offering flash-based field reprogrammability. Key features include 128KB self-programmable Flash with a boot section for in-application programming, 4KB internal SRAM, 4KB EEPROM for non-volatile parameter storage, and throughput approaching 16 MIPS at 16 MHz, allowing designers to optimize power consumption versus processing speed. Technically, the ATmega128 combines an 8-channel 10-bit A/D converter with an external-memory interface (up to 64KB external data space via PORTA/PORTC multiplexed addressing), two 8-bit and two 16-bit timers with PWM outputs, two USARTs, SPI, and a Two-Wire Interface, plus a JTAG boundary-scan and debug port. The AVR Harvard architecture with 32 general-purpose registers enables efficient C-compiled code execution. Typical applications include industrial control and automation nodes, general embedded systems, data loggers, and legacy ATmega103 upgrades, since the ATmega128 is 100% pin compatible with ATmega103 and can replace it on existing PCBs. A key design consideration is supply voltage: the 16 MHz -16AU speed grade requires 4.5V to 5.5V operation; the ATmega128L variant is needed for 2.7V-5.5V low-voltage designs. Provide decoupling capacitors on all VCC/AVCC pins and use the internal RC or external crystal clock option accordingly. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA128-16AUR

ATMEGA128-16AUR - 8-Bit AVR MCU, 128KB Flash, 16MHz | Microchip (Tape & Reel)

The Microchip Technology ATMEGA128-16AUR is a high-performance, low-power 8-bit AVR RISC microcontroller with 128KB of In-System Programmable Flash, 4KB SRAM, 4KB EEPROM, an 8-channel 10-bit ADC, and a JTAG interface for on-chip debugging, delivered in a 64-pin TQFP (14x14 mm) package operating at up to 16 MHz. An 8-bit AVR microcontroller is a single-chip processor built on the AVR enhanced RISC architecture, in which most instructions execute in a single clock cycle. Within the power-management and embedded-control hierarchy, it functions as the central computing element of a system, replacing discrete logic and analog control circuitry while offering flash-based field reprogrammability. Key features include 128KB self-programmable Flash with a boot section for in-application programming, 4KB internal SRAM, 4KB EEPROM for non-volatile parameter storage, and throughput approaching 16 MIPS at 16 MHz, allowing designers to optimize power consumption versus processing speed. Technically, the ATmega128 combines an 8-channel 10-bit A/D converter with an external-memory interface (up to 64KB external data space via PORTA/PORTC multiplexed addressing), two 8-bit and two 16-bit timers with PWM outputs, two USARTs, SPI, and a Two-Wire Interface, plus a JTAG boundary-scan and debug port. The AVR Harvard architecture with 32 general-purpose registers enables efficient C-compiled code execution. Typical applications include industrial control and automation nodes, general embedded systems, data loggers, and legacy ATmega103 upgrades, since the ATmega128 is 100% pin compatible with ATmega103 and can replace it on existing PCBs. A key design consideration is supply voltage: the 16 MHz -16AU speed grade requires 4.5V to 5.5V operation; the ATmega128L variant is needed for 2.7V-5.5V low-voltage designs. Provide decoupling capacitors on all VCC/AVCC pins and use the internal RC or external crystal clock option accordingly. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA128-16MC

ATMEGA128-16MC - 8-Bit AVR MCU 16MHz 128KB Flash | Microchip

The Microchip Technology (Atmel) ATMEGA128-16MC is a high-performance, low-power 8-bit AVR RISC microcontroller executing up to 16 MIPS at 16 MHz, with 128 KB of In-System Programmable Flash, 4 KB SRAM, 4 KB EEPROM, an 8-channel 10-bit ADC, and a JTAG interface for on-chip debugging, housed in a 64-pad QFN (MLF, 9x9 mm) no-lead package. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor in the broader hierarchy of MCUs (microcontroller -> embedded processor -> system-on-chip building block). The AVR family is known for executing most of its powerful instruction set in a single clock cycle, giving high code efficiency and deterministic timing for embedded control systems. Key features include 133 powerful instructions (most single-cycle), 32 x 8-bit general-purpose working registers, 53 programmable I/O lines, and a self-programming Flash architecture enabling field firmware updates. The 8-channel 10-bit ADC supports direct analog sensor interfacing, while dual USARTs, SPI, and TWI (I2C-compatible) cover common embedded communication needs. Technically, the ATmega128 pairs an advanced RISC core with a rich peripheral set: two 8-bit timers, two 16-bit timers with PWM capability, a watchdog timer, an on-chip analog comparator, and internal/external interrupt sources. The JTAG boundary-scan and on-chip-debug capability shortens development cycles on dense, no-lead packages that are otherwise hard to probe. According to the ATmega128 datasheet, the device is 100% pin compatible with the ATmega103 and can replace it on existing PCBs. Typical applications include industrial automation and control panels, building and HVAC controllers, instrumentation with analog sensor inputs, and legacy ATmega103 board upgrades. The commercial temperature grade (0C to +70C) suits indoor industrial and consumer products. Design consideration: at 16 MHz operation the ATMEGA128-16MC requires a 4.5 V to 5.5 V supply; for 3 V systems choose the ATmega128L speed-voltage grade or drop the clock below the low-voltage frequency limit. This page synthesizes distributor sourcing data, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA128-16AI - 8-bit AVR MCU 16MHz 128KB Flash | Microchip

ATMEGA128-16AJ - 16MHz 128KB 8-Bit AVR MCU | Microchip

ATMEGA128-16AN - 8-Bit AVR MCU 128KB 16MHz TQFP-64 | Microchip

ATMEGA128-16ANR - 8-Bit AVR MCU 128KB 16MHz TQFP-64 | Microchip (Tape & Reel)

ATMEGA128-16AU - 8-Bit AVR MCU, 128KB Flash, 16MHz | Microchip

ATMEGA128-16AUR - 8-Bit AVR MCU, 128KB Flash, 16MHz | Microchip (Tape & Reel)

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