Microchip Technology

ATTINY13A-MU - 20MHz 8-Bit AVR MCU | Microchip

MPN: ATTINY13A-MU ✓ Hoạt động
1.8 V to 5.5 V Vdss 20-QFN-EP, 4 mm x 4 mm Package 20 MHz Speed 1 KB (512 x 16 bytes) Memory
MOQ: 1 |

ATTINY13A-MU Tóm tắt

Microchip Technology ATTINY13A-MU is a low-power 8-bit AVR microcontroller rated for operation from 1.8 V to 5.5 V, with a maximum clock frequency of 20 MHz and up to 20 MIPS throughput. The device contains 1 KB of in-system-programmable Flash, 64 bytes of EEPROM, 64 bytes of SRAM, a 32-byte register file, and a four-channel 10-bit ADC. It is packaged as a 20-QFN-EP in a 4 mm by 4 mm footprint.

A microcontroller is a programmable semiconductor that integrates a CPU core, memory, peripherals, and input/output pins into one device. The ATtiny13A belongs to the TinyAVR family, which is part of Microchip's 8-bit AVR portfolio and is commonly used for compact control tasks. Its enhanced RISC architecture executes many instructions in one clock cycle, allowing performance approaching 1 MIPS per MHz while helping designers balance processing throughput against power consumption.

The principal features of the ATTINY13A-MU include 20 MHz operation, 1 KB of Flash memory, 64 bytes of EEPROM, 64 bytes of SRAM, and a four-channel 10-bit analog-to-digital converter. The picoPower architecture is designed for low-power embedded systems. Peripherals identified for the ATtiny13A family include brown-out detection and reset, power-on reset, PWM, and a watchdog timer, while the product page also identifies In-System Programming support.

The AVR enhanced RISC core provides an 8-bit processing platform with up to 20 MIPS throughput at 20 MHz. The 1 KB Flash capacity accommodates compact firmware, while the 64-byte EEPROM supports nonvolatile parameter storage and the 64-byte SRAM handles working data. The ADC provides four 10-bit channels for measurements from sensors, switches, resistive dividers, and simple analog interfaces. Operating voltage is stated as 1.8 V to 5.5 V, allowing integration with both low-voltage and conventional 5 V systems.

Typical uses include compact LED controllers, simple sensor interfaces, button-driven controls, battery-operated accessories, hobby projects, and small embedded automation nodes. The four ADC channels are particularly useful when a design must monitor several analog quantities without adding a separate converter. ISP programming makes the device suitable for small production runs and prototype boards because firmware can be loaded through the programming interface after assembly.

Designers should account for the limited 1 KB Flash and 64-byte SRAM when selecting a programming toolchain and organizing firmware. The I/O budget and analog channel requirements must also be checked against the exact 20-QFN-EP pin arrangement. Use the manufacturer pin-description table and package drawing during PCB layout, and confirm all operating conditions against the device's specified voltage and frequency limits.

This product analysis combines the manufacturer specifications with practical guidance for firmware sizing, programming, analog measurement, and compact PCB design. It also distinguishes the ATTINY13A-MU from package variants and larger ATtiny devices whose memory, speed, or pin count changes the replacement decision.

Bộ thay thế dễ dàng lắp đặt cho ATTINY13A-MU — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

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ATTINY13A-MU Tỷ lệ tối đa & tính chất điện

Product Type 8-bit RISC-based microcontroller
Architecture AVR enhanced RISC
Core Width 8 bit
Maximum CPU Frequency 20 MHz
Maximum Throughput 20 MIPS at 20 MHz
Operating Voltage Range 1.8 V to 5.5 V
Flash Memory 1 KB (512 x 16 bytes)
EEPROM Memory 64 bytes
SRAM Memory 64 bytes
Register File 32 bytes
ADC Resolution 10 bit
ADC Channel Count 4 channels
Architecture Feature picoPower
Process Technology Low-power CMOS
Hộp 20-QFN-EP, 4 mm x 4 mm
Kiểu lắp đặt Surface mount
Programming Interface In-System Programming
Brown-Out Detection Supported
Power-On Reset Supported
Pulse-Width Modulation Supported
Watchdog Timer Supported

Hướng dẫn cấu hình chân ATTINY13A-MU 20-qfn-ep, 4 mm x 4 mm

Cấu hình chân cho ATTINY13A-MU (20-qfn-ep, 4 mm x 4 mm gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.

Bảng cấu hình chân 20-qfn-ep, 4 mm x 4 mm cho ATTINY13A-MU

Không có dữ liệu chân cụ thể sẵn có cho ATTINY13A-MU.

Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.

Ứng dụng tiêu biểu

ATTINY13A-MU phù hợp cho 6 Áp dụngs: Compact LED Control, Low-Voltage Sensor Node, Battery-Powered Indicator, Button and Switch Interface, Simple Analog Monitoring, Educational AVR Prototype.

💡

Compact LED Control

The ATTINY13A-MU is suitable for compact LED dimming, sequencing, and status-control circuits because its 20 MHz AVR core can execute timing and control logic with low latency. PWM support can generate a modulated drive signal without relying on continuous software timing. The 1 KB Flash limit favors a compact state machine, while the six general-purpose I/O resources should be allocated carefully between LEDs, buttons, and optional status indicators. The 20-QFN-EP footprint also reduces board area compared with larger leaded packages.

🧩

Low-Voltage Sensor Node

The ATTINY13A-MU fits low-voltage sensor nodes that need local conditioning and control without a higher-cost microcontroller. Its four-channel 10-bit ADC can sample resistive dividers, switches, and basic analog sensors, while operation from 1.8 V to 5.5 V supports both low-energy and 5 V powered designs. Designers should keep interrupt and sampling code compact because only 64 bytes of SRAM and 1 KB of Flash are available. Low-power operation remains appropriate when the selected sensor can be duty-cycled.

⚡

Battery-Powered Indicator

A battery-powered status indicator can use the ATTINY13A-MU to monitor a battery-derived voltage and drive LEDs or a small actuator. The low-power CMOS design and 1.8 V to 5.5 V operating range suit compact energy-limited products, while the 10-bit ADC supports threshold measurements without an external indicator circuit. The design must include the application-specific battery limits and should use shutdown or sleep behavior where supported by the firmware. Firmware size must remain within the 1 KB Flash capacity.

🔧

Button and Switch Interface

The ATTINY13A-MU can implement compact button, rotary-switch, or mode-selection interfaces for appliances and accessories. Its 8-bit AVR architecture executes debounce and state-machine logic efficiently, and the 20 MHz operating rate provides ample response for ordinary human-interface tasks. The limited memory footprint favors direct register-level configuration and short firmware, particularly when several functions must coexist. Use the package pin table to map inputs and outputs and retain pull-up or pull-down arrangements that suit the intended switch topology.

📟

Simple Analog Monitoring

The ATTINY13A-MU is appropriate for simple analog monitoring systems that must evaluate several inputs and trigger a discrete output. Four 10-bit ADC channels provide enough resolution for many resistive sensors, potentiometers, and threshold circuits, while brown-out detection and power-on reset support dependable startup behavior. Applications requiring higher accuracy, more channels, or faster conversion should use a dedicated ADC or larger MCU. For this device, average repeated readings to improve stability and keep calculation code concise.

🎓

Educational AVR Prototype

The ATTINY13A-MU provides a practical platform for learning GPIO control, timers, ADC conversion, interrupts, and In-System Programming. Its small 20-QFN-EP package teaches fine-pitch PCB layout, while the limited memory encourages efficient code organization and makes the program size visible to the learner. AVR-compatible tools and the ATtiny13A core can be used for project development. Because the footprint is difficult to hand-wire, a programmed carrier board or professionally assembled PCB is preferable for initial prototypes.

What are the key specifications of ATTINY13A-MU that engineers should know?
The ATTINY13A-MU is an 8-bit AVR microcontroller with a 20 MHz maximum clock, 1 KB of Flash, 64 bytes of EEPROM, 64 bytes of SRAM, and a four-channel 10-bit ADC. According to the Microchip ATtiny13A datasheet DS40002307A, it operates from 1.8 V to 5.5 V and can reach 20 MIPS throughput at 20 MHz. The device is packaged in a 20-QFN-EP with a 4 mm by 4 mm footprint.
Where can I download the ATTINY13A-MU datasheet PDF?
The official ATTINY13A-MU datasheet PDF is available from Microchip Technology through the ATtiny13A Data Sheet DS40002307A document. It describes the electrical characteristics, AVR architecture, memory organization, ADC, timers, watchdog, brown-out detection, programming interface, package information, and pin definitions. Use the manufacturer's version for PCB layout and qualification decisions, especially when assigning the 20-QFN-EP pins.
What is the ATTINY13A-MU pinout?
The ATTINY13A-MU uses a 20-QFN-EP package with an exposed pad and a 4 mm by 4 mm body. The exact numbered signal assignments should be taken from the pin-description table and package drawing in the Microchip ATtiny13A datasheet DS40002307A. Because the complete pin table is not reproduced on this page, use the manufacturer diagram directly when assigning PCB nets and exposed-pad connections.
How do I program an ATTINY13A-MU?
The ATTINY13A-MU supports In-System Programming, allowing firmware to be loaded into its 1 KB of Flash through the ISP interface. The product page identifies ISP programming and a separate reset connection as supported functions. Exact ISP clock, connector, and signal details should be confirmed against the Microchip ATtiny13A datasheet and the programming-tool documentation for the selected programmer.
Can ATTINY13A-MU be programmed with Arduino?
ATtiny13A projects can be built using the Arduino workflow with an ATtiny13A core and a compatible programmer. The device itself is programmed through ISP rather than a conventional USB bootloader. Its 1 KB Flash and 64-byte SRAM impose strict firmware-size constraints, so confirm that the Arduino core, libraries, bootloader, and compiled sketch fit before committing the PCB design.
What is the difference between ATTINY13A-MU and ATTINY85?
The ATTINY13A-MU is the smaller 20 MHz member of the TinyAVR family, with 1 KB of Flash, 64 bytes of SRAM, 64 bytes of EEPROM, and a four-channel 10-bit ADC. The ATTINY85 provides substantially more program and data memory plus additional I/O and communication resources. Choose ATTINY13A-MU for minimal control tasks and ATTINY85 when firmware size, interface count, or project complexity becomes limiting.
When should I choose ATTINY13A-MU over ATTINY13A-SU?
Choose ATTINY13A-MU when the PCB footprint must specifically use the 20-QFN-EP package and adequate PCB assembly capability exists for that compact land pattern. ATTINY13A-SU serves a different package configuration and therefore is not a drop-in substitution for the same PCB. The shared ATtiny13A device family and electrical characteristics support firmware compatibility, but the physical package must always be checked before replacement.
Is ATTINY13A-MU suitable for low-voltage sensor projects?
The ATTINY13A-MU is suitable for low-voltage sensor projects because its specified operating range extends down to 1.8 V and it includes four 10-bit ADC channels. It can supervise resistive dividers, switches, and basic analog sensors while executing compact control logic. Verify sensor signal levels and ADC input limits in the datasheet, and confirm that the complete firmware fits within 1 KB of Flash.
What can replace ATTINY13A-MU on the same PCB?
No independently verified, pin-compatible cross-manufacturer replacement was established for the exact ATTINY13A-MU footprint. Microchip application documentation identifies the original ATtiny13 as functionally identical and drop-in compatible with ATtiny13A, but package variants must still be checked because the physical suffix determines the lead format. Request a quote for the exact MPN when continuity or supply assurance is required.
Is ATTINY13A-MU the same as ATtiny13?
ATtiny13A is described by Microchip as a functionally identical drop-in replacement for ATtiny13, although some electrical characteristics and the behavior of modules such as brown-out detection and power-on reset differ. Package compatibility must be confirmed separately because the suffix identifies the physical package and ordering configuration. Use the ATtiny13A datasheet to verify voltage, timing, and module behavior during migration.
Where can I buy ATTINY13A-MU online and what is its current price?
The ATTINY13A-MU is offered for order through the Request a Quote form on this page. Submit the required quantity, package preference, and target delivery location to receive current commercial terms. The manufacturer identifies the ATtiny13A as active, while live pricing, stock, minimum order quantity, and lead time should be confirmed through the quote workflow before ordering.
What is the lead time for ATTINY13A-MU?
A fixed production lead time for the ATTINY13A-MU is not published in the manufacturer product information. Request current lead time and stock through the Request a Quote form on this page, including your required quantity, reel or tray preference, and destination. This approach also allows the supplier to confirm whether an alternate manufacturer part number would meet the schedule without implying package interchangeability.
Is ATTINY13A-MU in stock?
Current ATTINY13A-MU stock is confirmed through the Request a Quote form on this page rather than through a static availability label. Include the required quantity, packaging preference, and delivery date when requesting a quotation. The manufacturer product page identifies the ATtiny13A family as active, but quantity-specific inventory should be checked as part of the order confirmation.
What is the price of ATTINY13A-MU?
Use the Request a Quote form on this page to obtain the current ATTINY13A-MU price for your specified order quantity. The form is the appropriate commercial channel for quote-based purchasing and can reflect quantity, packaging, shipment, and delivery requirements. Confirm the final part number and any date-sensitive commercial terms in the returned quotation before placing the order.
Is ATTINY13A-MU RoHS compliant, and is it AEC-Q100 qualified?
The ATTINY13A-MU product information does not provide a definitive RoHS, REACH, or AEC-Q100 classification, so those compliance attributes should remain unconfirmed until checked against current manufacturer documentation. The device is suitable for general embedded designs, but automotive programs should specifically require an appropriately qualified automotive-grade part rather than assuming the standard ATTINY13A-MU meets AEC-Q100.
What are good small projects for an ATTINY13A-MU?
Useful ATTINY13A-MU projects include LED dimmers, pushbutton controllers, battery indicators, simple timers, and small sensor-reading nodes. Its four-channel 10-bit ADC supports several analog inputs, while 20 MHz operation provides enough control bandwidth for compact embedded logic. Projects must fit within 1 KB of Flash and 64 bytes of SRAM, so concise firmware and carefully selected libraries are important.

Dữ liệu tham khảo kỹ thuật cho ATTINY13A-MU — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.

Hướng dẫn chọn lựa

Choose the ATTINY13A-MU when a design needs a low-cost, low-power AVR controller with 20 MHz operation, four 10-bit ADC channels, and a compact 20-QFN-EP footprint. It is well suited to LED control, simple sensor nodes, user interfaces, and compact battery-powered products. Select ATTINY13A-SU when a leaded SOIC footprint is more practical, or ATTINY13A-PU when through-hole construction simplifies hand assembly. Consider the ATtiny85 when 1 KB of Flash, 64 bytes of SRAM, or the available I/O resources are insufficient. Do not treat these devices as unconditional PCB drop-in replacements because their packages differ. For a replacement sharing the exact footprint, no independently verified candidate was established; request an engineering review of any proposed substitute before changing the schematic or layout.

So sánh với các sản phẩm thay thế

Tham số Sản phẩm này
Package 20-QFN-EP (4 mm x 4 mm)
Brand Microchip Technology
Core 8-bit AVR enhanced RISC
Maximum CPU Frequency 20 MHz
Maximum Throughput 20 MIPS at 20 MHz
Operating Voltage Range 1.8 V to 5.5 V
Flash Memory 1 KB (512 x 16 bytes)
EEPROM Memory 64 bytes
SRAM Memory 64 bytes
ADC 4 channels, 10-bit resolution

Bảo phân biệt quan trọng

  • Balanced low-cost control with integrated analog conversion (vsATtiny13A-SU)
  • Compact 4 mm by 4 mm footprint (vsATTINY13A-PU)
  • Higher clock rate than smaller ATtiny9 alternatives (vsATTINY9-MAH)

Ghi chú thiết kế

Treat the 20-QFN-EP as a fine-pitch assembly design. Place the device on a PCB with a controlled thermal profile, route all exposed-pad and ground connections according to the manufacturer package drawing, and avoid placing tall parts where they can interfere with assembly tooling. Verify the land pattern against the 4 mm by 4 mm package dimensions before release.

Do not plan around the memory of a larger ATtiny device. The ATTINY13A-MU has only 1 KB of Flash and 64 bytes of SRAM, so library code, interrupt vectors, stack usage, and buffered data must be checked before compilation is considered final. The four-channel ADC can also consume registers and processing time; use short routines and avoid unnecessary floating-point operations.

Design the supply for the full 1.8 V to 5.5 V operating range while observing the exact current limits and output-voltage conditions in the manufacturer datasheet. Place the required bypass capacitance close to the supply and ground pins, and account for voltage drop across traces or source resistance. Brown-out and power-on reset behavior should be checked against the minimum voltage expected during startup and load transitions.

Assign analog inputs away from switching nodes and high-current return paths when possible. Keep the analog ground reference and sensor traces short, avoid routing them beneath digital clocks, and use a quiet ground path when the application measures low-level signals. The four ADC channels are useful, but their practical accuracy still depends on source impedance, filtering, grounding, and firmware averaging.

Thông tin tuân thủ

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Không chì
Unknown
Không halogen
Unknown
Khoáng vật xung đột
Unknown

No definitive RoHS, REACH, lead-free, halogen-free, or conflict-minerals statement was identified for the exact MPN. AEC-Q100 qualification is not stated and should not be assumed for this standard product.

Dữ liệu được xác minh vào: 2026-11-03 — dữ liệu được xác minh và quản lý bởi đội ngũ kỹ thuật phần cứng của XAIPART

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Microchip Technology ATTINY13A-MU ATtiny13A ATtiny13A-SU ATtiny13A-PU ATtiny9-MAH ATtiny85 8-bit microcontroller AVR enhanced RISC architecture TinyAVR picoPower In-System Programming ISP 10-bit ADC PWM brown-out detector power-on reset watchdog timer 20-QFN-EP QFN package surface-mount package 1.8 V to 5.5 V operation 20 MHz clock 1 KB Flash 64-byte EEPROM
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