ATMEGA169PV-8MCU - 8-bit AVR MCU 16KB Flash 8MHz | Microchip
MPN: ATMEGA169PV-8MCU ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.2 | $220.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.72 | $1,720.00 |
ATMEGA169PV-8MCU Overview
An 8-bit microcontroller is a single-chip processor that moves and computes data 8 bits at a time, integrating CPU, program memory, RAM, peripherals and I/O on one die. Within the embedded systems hierarchy, the ATMEGA169PV-8MCU sits in the AVR ATmega family, itself a branch of the microcontroller -> integrated circuit -> semiconductor taxonomy, and competes with PIC16 and 8051-class devices.
Key features include the AVR advanced RISC architecture with 133 powerful instructions, most executing in a single clock cycle, which yields high code efficiency at 8 MHz. The 16KB self-programmable FLASH supports In-System Programming (ISP), reducing field-update cost. The 8-channel/8x 10-bit ADC supports analog sensor inputs, and the wide 2.7V to 5.5V supply range (3V-class operation) suits both 3.3V and 5V systems. The picoPower-class P suffix indicates low-power operation for battery designs.
Technically, the device executes most instructions in one cycle through a Harvard-architecture pipeline with separate program and data buses, sustaining close to 1 MIPS per MHz. Memory is organized as 8K x 16 FLASH words plus 1KB internal SRAM and 512B EEPROM for non-volatile parameter storage.
Typical applications include battery-powered instruments, LCD-based consumer appliances, industrial control nodes and sensor acquisition systems where the 10-bit ADC and 53 I/O lines interface directly to keys, displays and actuators.
Design consideration: at 5V/8MHz observe the datasheet frequency-versus-voltage safe operating region; run 8 MHz only at 4.5V or above and reduce f_MAX at lower VCC.
This page synthesizes distributor pricing, drop-in alternatives, comparison tables and practical design notes not found in the manufacturer datasheet, adding unique sourcing and engineering value.
Drop-in alternatives for ATMEGA169PV-8MCU — 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-8MCU (same form factor and footprint) — differing in Throughput, EEPROM Size, Program Memory Size, ADC Resolution, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMEGA169PV-8AUR
✅ Drop-In✓ In Stock
$4.16 / Unit
View Datasheet →ATMEGA169P-15AT
✅ Drop-In✓ In Stock
$3.6 / Unit
View Datasheet →ATMEGA169A-MCHR
✅ Drop-In✓ In Stock
$1.4011 / Unit
View Datasheet →ATMEGA169PA-MU
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$4.1 / Unit
View Datasheet →ATMEGA169PV-8MUR
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
ATMEGA169PV-8MCU Maximum Ratings & Electrical Characteristics
| Core Architecture | AVR 8-bit RISC |
| Data Bus Width | 8 bit |
| Program Memory Size | 16KB (8K x 16) FLASH |
| SRAM Size | 1KB |
| EEPROM Size | 512 B |
| Maximum Clock Frequency | 8 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Number of I/O | 53 |
| ADC Resolution | 10 bit |
| ADC Channels | 8 |
| Instruction Set | 133 instructions, mostly single-cycle |
| Programming Method | In-System Programmable (ISP) FLASH |
| Package Type | 64-QFN (7x7 mm), dual rows, exposed pad |
| Mounting Type | Surface Mount |
| Lifecycle Stage | Active |
ATMEGA169PV-8MCU 64-qfn (7x7 mm), dual rows, exposed pad Pin Configuration Guide
Pin configuration for ATMEGA169PV-8MCU (64-qfn (7x7 mm), dual rows, exposed pad 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-8MCU.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMEGA169PV-8MCU is suitable for 6 applications: Battery-Powered Portable Instruments, Industrial Control Nodes, Sensor Acquisition Systems, Consumer Appliance Control, Metering and Measurement Devices, Legacy Board Continuation and BOM Rescue.
Battery-Powered Portable Instruments
The ATMEGA169PV-8MCU fits portable and battery-powered instruments because its 2.7V to 5.5V supply range allows direct operation from 3V lithium cells or three NiMH cells without a regulator, and the P-suffix picoPower-class design targets low average current. The 8-channel 10-bit ADC digitizes sensor signals directly, and 53 GPIO lines drive keys, indicators and displays without external glue logic. In a typical topology the MCU sleeps between measurements, waking on timer or interrupt to sample and update the display; at 8 MHz it delivers roughly 8 MIPS, ample for filtering and calibration math. The main trade-off is limiting clock speed at low VCC to stay inside the frequency-voltage safe region.
Recommended
Industrial Control Nodes
In industrial control nodes the ATMEGA169PV-8MCU provides 53 GPIO, sufficient to drive relays, optocoupled inputs and status LEDs from a single controller, while the 16KB ISP FLASH accommodates protocol and control firmware with room for field updates via In-System Programming. The 5V-compatible 2.7V-5.5V supply range matches legacy 24V-panel 5V rails, and the 8 MHz core executes mostly single-cycle instructions, giving deterministic response for simple closed-loop control. Placed on a board with TVS-protected inputs, the MCU handles noisy factory environments; the exposed-pad QFN improves thermal robustness. Designers should budget 512B EEPROM carefully for wear-leveled parameter storage in high-cycle logging applications.
Recommended
Sensor Acquisition Systems
The ATMEGA169PV-8MCU is well matched to multi-channel sensor acquisition because its on-chip 8-channel 10-bit ADC eliminates an external converter, sampling analog sensors such as temperature, pressure and potentiometer inputs. With 1KB SRAM the device buffers sample blocks for averaging or peak detection, and 53 I/O lines handle sensor enable switches and digital sensors concurrently. A typical implementation polls channels sequentially with the internal reference, applies oversampling for effective resolution gain, and streams results over UART or SPI, all within the 8 MHz single-cycle instruction budget. The trade-off versus a 12-bit external ADC is resolution; oversampling can partially compensate at reduced sample rate.
Recommended
Consumer Appliance Control
Consumer appliances such as small kitchen devices and climate controllers use the ATMEGA169PV-8MCU for its cost-effective 8-bit core, wide 2.7V-5.5V operation tolerant of unregulated wall-adapter supplies, and rich I/O for membrane keyboards, LEDs and display interfaces. The ATmega169 family integrates an LCD controller capability that made this family popular in display-based appliance front ends, and the 16KB FLASH stores menu logic, timing tables and safety interlocks. The 512B EEPROM retains user settings across power cycles. Because volumes are high and BOM cost critical, the pin-compatible ATMEGA169A provides a supply-resilient second source within Microchip's own lineup without any PCB change.
Recommended
Metering and Measurement Devices
Energy and utility meters benefit from the ATMEGA169PV-8MCU's combination of a 10-bit ADC for analog front-end sampling, 512B EEPROM for accumulating consumption records, and low-power P-suffix operation for long battery-backed service. The 8 MHz RISC core performs multiplication-accumulation and calibration routines efficiently since most of its 133 instructions execute in a single cycle, achieving near 1 MIPS per MHz. Firmware lives in 16KB ISP FLASH and can be recalibrated in the field via the SPI ISP interface, an important requirement for metering certification maintenance. Designers should implement EEPROM wear leveling and verify ADC reference stability over temperature for accurate long-term measurement.
Recommended
Legacy Board Continuation and BOM Rescue
The ATMEGA169PV-8MCU plays a key role in sustaining legacy ATmega169-based boards still in production. Because Microchip documents ATMEGA169A-MCHR as a pin-compatible, higher-performance substitute, engineers can dual-source within the same 64-QFN footprint without layout changes, and ordering-code variants such as ATMEGA169PV-8AUR and ATMEGA169P-15AT broaden sourcing options during shortages. In a BOM-rescue scenario, teams verify the speed grade, temperature suffix and fuse compatibility, then qualify the substitute with an ISP firmware re-flash regression test. The main engineering consideration is confirming that any newer-process substitute meets the original timing margins on外围 peripherals already qualified in the legacy design.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA169PV-8MCU — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA169PV-8AUR | ATMEGA169A-MCHR | ATMEGA169PA-MU |
|---|---|---|---|---|
| Package | 64-QFN (7x7 mm) EP | 64-QFN (7x7 mm) EP - same | 64-QFN (7x7 mm) EP - same | 64-QFN (7x7 mm) EP - same |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16KB (8K x 16) | 16KB | 16KB | 16KB |
| SRAM | 1KB | 1KB | 1KB | 1KB |
| Max Clock Speed | 8 MHz | 8 MHz | Higher speed grade (per YIC Electronics) | Up to 20 MHz (PA grade) |
| GPIO Count | 53 | 53 | 53 | 53 |
| ADC | 8-ch, 10-bit | 8-ch, 10-bit | 8-ch, 10-bit | 8-ch, 10-bit |
Key Differentiators
- Lowest-cost, low-speed grade for cost-sensitive designs (vs ATMEGA169PA-MU)
- Documented pin-compatible faster substitute exists (vs ATMEGA169A-MCHR)
- Wide legacy supply compatibility (vs ATMEGA168PB-MU)
Design Notes
Respect the frequency-versus-voltage safe operating region: the 8 MHz maximum rating of ATMEGA169PV-8MCU applies at the upper supply range (about 4.5V-5.5V). If the product runs from a 3V lithium cell, reduce the system clock or rely on the internal RC oscillator at a lower frequency. Estimated: at 3.0V, a design targeting 8 MHz would be outside the typical AVR V-F curve, so plan a clock divider or an 8 MHz-at-5V / 4 MHz-at-3V dual configuration. Decouple VCC with 100 nF ceramic caps at each supply pin pair plus bulk 10 uF.
The 64-QFN (7x7 mm) exposed-pad package requires the center pad to be soldered to a PCB thermal pad for mechanical reliability and ground integrity. Define an array of thermal vias (approximately 4x4) connecting the pad to the ground plane, and use an NSMD (non-solder-mask-defined) footprint with slightly reduced pad dimensions so solder wicks upward without excessive bridging of the 0.5 mm-pitch perimeter pads. Inspect with X-ray or boundary scan on first articles, since voids under QFN exposed pads are a common field-failure source.
When substituting ATMEGA169A or ATMEGA169PA parts on an existing ATMEGA169PV-8MCU board, re-verify fuse bits, clock source selection and EEPROM contents: the ISP programming interface is shared, but newer-process variants can have different default clock settings and altered timing margins on peripherals qualified in the legacy design. Also confirm the temperature suffix matches the product environment - the -8MCU (commercial) coding should not silently replace an industrial-grade requirement in the BOM.
Compliance Information
Compliance status not stated in the provided web data; verify on the Microchip product page or certificate of conformance. Most modern Microchip ATmega parts are RoHS-compliant, but this must be confirmed per Data Authenticity Rules.
