ATMEGA169PV-8MCH - AVR 8-bit MCU 16KB 8MHz 64-QFN | Microchip
MPN: ATMEGA169PV-8MCH ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ATMEGA169PV-8MCH Overview
A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, memory, and programmable peripherals on one die, sitting at the heart of the embedded systems hierarchy: MCU -> embedded processor -> integrated circuit -> semiconductor. The AVR family uses an enhanced RISC architecture in which most of its 133 powerful instructions execute in a single clock cycle, delivering roughly 8 MIPS of throughput at the 8 MHz rating of this part.
Key features include in-system programmable (ISP) Flash, an 8-channel 10-bit ADC, a JTAG interface for on-chip debugging and boundary scan, 53 general-purpose I/O lines, and a segment LCD driver that distinguishes the ATmega169 family from the LCD-less ATmega165. The PV suffix denotes the picoPower low-power variant with a wide 1.8 V to 5.5 V supply range, and the NiPdAu terminal finish supports lead-free assembly.
Architecturally, the AVR core pairs 32 general-purpose working registers directly with the ALU, avoiding the accumulator bottleneck of older 8-bit designs. Two-cycle hardware multiplier, nested interrupt vectors, and three flexible timer/counters with PWM outputs round out a peripheral set well suited to metering and human-interface products.
Typical applications include battery-operated devices with graphical or segment LCDs, utility metering front ends leveraging the 10-bit ADC, and industrial control panels. The LCD controller plus low picoPower sleep currents make it a strong fit for coin-cell and battery-backup designs.
When designing with this device, note that the 64-QFN exposed-pad package requires a well-defined ground pour under the die for thermal and signal-integrity performance, and JTAG fuses should be locked in production to protect code.
This page synthesizes distributor inventory data, drop-in family alternatives, and practical design notes that are not consolidated in the manufacturer datasheet.
Drop-in alternatives for ATMEGA169PV-8MCH — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATMEGA169PV-8MCH (same form factor and footprint) — differing in Program Memory Size, Supply Voltage Range, ADC Resolution, EEPROM Size, Number of I/O.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMEGA169PV-8MU
✅ Drop-In📋 Reference alternative (not in catalog)
ATMEGA169PA-MCH
✅ Drop-In✓ In Stock
$1.68 / Unit
View Datasheet →ATMEGA169PV-8MCU
✅ Drop-In✓ In Stock
$1.72 / Unit
View Datasheet →ATMEGA165PV-8MUR
✅ Drop-In📋 Reference alternative (not in catalog)
ATMEGA325V-8MUR
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$2.19 / Unit
View Datasheet →ATMEGA169PV-8MCH Maximum Ratings & Electrical Characteristics
| Core | AVR 8-bit RISC |
| Program Memory Size | 16 KB (8K x 16) Flash |
| EEPROM Size | 512 B |
| SRAM Size | 1 KB |
| Maximum Clock Frequency | 8 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V (picoPower PV variant) |
| Number of I/O | 53 |
| ADC Resolution | 10-bit |
| ADC Channels | 8 |
| LCD Controller | Yes (segment LCD driver) |
| Timers | 3 x 8/16-bit timer/counters with PWM |
| Debug Interface | JTAG (on-chip debug and boundary scan) |
| Instruction Set | 133 instructions, mostly single-cycle |
| Throughput | Up to 8 MIPS at 8 MHz |
| Operating Temperature | -40C to +85C (industrial) |
| Package | 64-QFN (7x7 mm), dual row |
| Terminal Finish | NiPdAu (lead-free) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ATMEGA169PV-8MCH 64-qfn (7x7 mm), dual row Pin Configuration Guide
Pin configuration for ATMEGA169PV-8MCH (64-qfn (7x7 mm), dual row package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for ATMEGA169PV-8MCH.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMEGA169PV-8MCH is suitable for 6 applications: Battery-Powered LCD Metering Devices, Industrial Control Panels, Portable Test and Measurement Instruments, Consumer Appliance User Interfaces, Sensor Nodes and Remote Monitoring, Automotive and Aftermarket Control Modules.
Battery-Powered LCD Metering Devices
The ATMEGA169PV-8MCH fits battery-powered metering products because it combines a segment LCD driver, an 8-channel 10-bit ADC, and picoPower sleep modes on one 64-QFN die operating from 1.8 V to 5.5 V. In a utility or energy meter front end, the MCU reads sensor channels through the 10-bit ADC, computes consumption, and drives the segment LCD directly, eliminating a separate LCD controller IC and its quiescent draw. The 1 KB SRAM and 512 B EEPROM hold accumulated values and calibration constants through power loss. Because the AVR core executes most instructions in a single cycle at 8 MHz (about 8 MIPS), metering loops complete quickly, allowing the device to spend most of its duty cycle in low-power sleep and extending battery life substantially.
Recommended
Industrial Control Panels
Industrial HMI panels benefit from the ATMEGA169PV-8MCH's 53 general-purpose I/O lines, three timer/counters with PWM, and integrated LCD driver, all in one 7x7 mm 64-QFN package rated -40C to +85C for industrial temperature. The MCU reads pushbuttons and sensors, generates PWM outputs for actuators or backlight dimming, and renders status on a segment display without external driver ICs. The JTAG interface enables on-chip debugging and boundary-scan test during panel production, reducing fixture cost, and the in-system programmable 16 KB Flash allows firmware updates on the assembled board. Running from an industrial 5 V rail within the 1.8 V to 5.5 V range, the NiPdAu-finished QFN withstands typical lead-free reflow profiles used in panel assembly.
Recommended
Portable Test and Measurement Instruments
Handheld instruments use the ATMEGA169PV-8MCH's 10-bit ADC with 8 input channels to sample analog quantities, while the integrated LCD controller presents readings on a segment display with minimal board area in the 7x7 mm 64-QFN footprint. The picoPower PV die supports operation down to 1.8 V, enabling 2-cell battery designs, and sleep modes keep standby current low between measurements. The AVR's single-cycle execution of 133 instructions provides deterministic timing for measurement loops and the three timer/counters support frequency and period measurement. JTAG on-chip debug shortens firmware bring-up, and the 512 B EEPROM retains calibration factors, so a portable instrument maintains accuracy across battery swaps without external non-volatile memory.
Recommended
Consumer Appliance User Interfaces
Appliance control boards pair the ATMEGA169PV-8MCH's segment LCD driver with its PWM-capable timers to implement front-panel interfaces for ovens, HVAC controllers, and small appliances. The 53 I/O lines handle membrane-key scanning, relay or triac drive via PWM timers, and buzzer output, while the LCD shows setpoints and status. The 16 KB self-programming Flash accommodates a bootloader for field firmware updates during service, and the 8 MHz AVR core delivers roughly 8 MIPS, ample for UI state machines and timing functions. The 1.8 V to 5.5 V supply range tolerates cost-optimized linear supplies, and the compact 64-QFN (7x7 mm) dual-row package keeps the controller footprint small on two-layer control PCBs.
Recommended
Sensor Nodes and Remote Monitoring
Low-power sensor nodes exploit the ATMEGA169PV-8MCH's wide 1.8 V to 5.5 V operating range and picoPower sleep architecture to run from primary cells for extended periods. Sensor signals connect to the 8-channel 10-bit ADC, the MCU filters and formats readings, and data is handed to an external radio or wired transceiver over SPI/UART-style bit-banged or hardware interfaces available on the 53 I/O lines. The on-chip EEPROM stores node ID and calibration data, and the LCD driver can optionally provide a local status display for commissioning. Deterministic single-cycle AVR execution simplifies timing-critical sampling, while JTAG-based boundary scan supports production test of the assembled node before deployment in the field.
Recommended
Automotive and Aftermarket Control Modules
Non-safety automotive aftermarket modules, such as accessory controllers and display bezels, use the ATMEGA169PV-8MCH's industrial -40C to +85C rating, robust 5 V operation within its 1.8 V to 5.5 V range, and LCD driver for local indication. The 10-bit ADC reads potentiometer or sensor inputs, PWM timers drive lamps or actuators, and the 53 I/O lines interface with the vehicle harness through appropriate drivers. In-system programmable 16 KB Flash supports variant programming on the production line from a single PCB, reducing inventory. Where supply of the exact suffix tightens, the same-family ATMEGA169PV-8MU and ATMEGA169PA-MCH provide drop-in continuity on the identical 64-QFN (7x7 mm) footprint without PCB changes.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA169PV-8MCH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA169PV-8MU | ATMEGA169PA-MCH | ATMEGA165PV-8MUR | ATMEGA325V-8MUR |
|---|---|---|---|---|---|
| Package | 64-QFN (7x7 mm), dual row | 64-QFN (7x7 mm) - same | QFN-64 / VQFN-64 - same | 64-QFN (7x7 mm) - same | 64-QFN (7x7 mm) - same |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB (8K x 16) | 16 KB | 16 KB | 16 KB | 32 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB |
| LCD Controller | Yes | Yes | Yes | No | Yes |
| Max Clock Speed | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
Key Differentiators
- Integrated segment LCD controller (vs ATMEGA165PV-8MUR)
- picoPower low-power generation (vs ATMEGA169PV-8MU)
- Compact single-chip HMI solution (vs ATMEGA168PA-MU)
Design Notes
The 64-QFN (7x7 mm) dual-row land pattern differs from a single-row QFN-64 footprint; verify your PCB footprint against the mechanical drawing in the ATmega169P datasheet before layout release. Connect the exposed die pad to a solid ground pour with an array of thermal vias to improve heat spreading and provide a low-inductance ground return for the AVR core and ADC. Dual-row QFN parts are harder to rework than single-row, so inspect paste coverage with X-ray or SPI on first articles.
The picoPower PV die operates from 1.8 V to 5.5 V, but the maximum safe clock frequency decreases at lower supply voltages per the datasheet speed-versus-voltage curve. At 1.8 V, do not run at the full 8 MHz; derate the system clock or enable the internal clock prescaler. Decouple VCC and AVCC separately with 100 nF ceramics placed within 2 mm of the pins, and filter AVCC with an RC network if the 10-bit ADC is used, since digital switching noise from the 53 I/O lines directly degrades ADC accuracy.
JTAG is enabled by default and shares pins with general-purpose I/O; in production, either disable the JTAGEN fuse to reclaim the pins or lock the device to protect the 16 KB Flash image. When migrating firmware from ATMEGA169PV to the ATMEGA169PA picoPower refresh, re-verify sleep-mode wake sources and brown-out detector register settings, since power-management details were refined between generations. For the ATMEGA165 substitute, remember the LCD controller is absent and firmware touching LCD registers will fail.
Estimated: at 5 V, 8 MHz, and typical 10-15 mA active current, dissipation is roughly 50-75 mW, far below the package limit of the 7x7 mm 64-QFN, so no heatsinking is needed for standard operation. Thermal concerns only arise if many I/O lines source high LED or LCD bias currents continuously; sum the load currents and confirm the junction stays within the datasheet maximum using theta_JA from the manufacturer datasheet.
Compliance Information
MCH suffix indicates RoHS-compliant variant with NiPdAu lead-free terminal finish per distributor listings. REACH, halogen-free, and conflict-minerals declarations not present in verified data - request certificates from Microchip.
