ATMEGA162V-1PC - 16KB Flash 8-Bit AVR MCU 40-DIP | Microchip
MPN： ATMEGA162V-1PC ✓ 啟用中ATMEGA162V-1PC 概覽
An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, delivering roughly 1 MIPS per MHz. Within the power-management hierarchy of embedded systems, the MCU sits at the control layer, reading sensors, driving peripherals, and managing communication interfaces while optimizing energy consumption versus processing speed.
Key features include the AVR advanced RISC architecture with 131 powerful instructions, 32 general-purpose working registers, an external memory interface for expanding beyond internal SRAM, four flexible Timer/Counters with compare modes, and a JTAG interface supporting Boundary-scan, on-chip debugging, and In-System Programming. The 1.8V to 3.6V supply range makes it ideal for battery-powered designs where 3.3V rails are standard.
Technically, the ATmega162V core sustains up to 8 MIPS throughput at 8 MHz in fully static operation. The 16KB self-programming Flash supports Read-While-Write operation, enabling safe field firmware updates, while the dedicated boot section allows bootloader-based reprogramming without external programmers.
Typical applications include battery-operated industrial controllers, legacy equipment maintenance where through-hole DIP-40 sockets simplify field replacement, and embedded systems using the external memory interface to address larger RAM or memory-mapped peripherals.
A key design consideration: because the -1 speed grade limits operation to 8 MHz, select the ATmega162-16 (4.5V to 5.5V, 16 MHz) if full-speed execution on a 5V rail is required.
This page synthesizes distributor sourcing data, drop-in DIP-40 alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 ATMEGA162V-1PC — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATMEGA162V-1PC （相同外形與佔位） — 差異在於 Maximum Clock Frequency, Package, Instruction Set, RoHS Status, Core Architecture.
ATMEGA162V-1PI
✅ 直接替換📋 參考替代品（不在目錄中）
ATMEGA162L-8PI
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA162-16PC
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA162-16PU
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA161L-4PI
✅ 直接替換聯絡詢價
查看資料表 →ATMEGA162V-1PC 最大額定值與電氣特性
| Core Architecture | AVR 8-bit RISC |
| Flash Program Memory | 16 KB |
| SRAM | 1 KB |
| EEPROM | 512 B |
| Supply Voltage Range | 1.8 V to 3.6 V |
| 最大時脈頻率 | 8 MHz |
| Maximum Throughput | 8 MIPS at 8 MHz |
| Instruction Set | 131 instructions, most single-cycle |
| General Purpose I/O | 35 I/O lines |
| JTAG Interface | Boundary-scan, on-chip debug, programming |
| Timers/Counters | 4 with compare modes |
| External Memory Interface | Yes |
| Temperature Grade | Commercial (0C to +70C) |
| 封裝 | 40-pin PDIP (DIP-40), through-hole |
| 安裝類型 | Through-Hole |
| Speed Grade | -1 (0 - 8 MHz at 1.8V - 3.6V) |
| Operating Voltage Class | Low-voltage (V) grade |
ATMEGA162V-1PC 40-pin pdip (dip-40), through-hole 腳位配置指南
ATMEGA162V-1PC（40-pin pdip (dip-40), through-hole 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATMEGA162V-1PC.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATMEGA162V-1PC 適用於 6 應用s: Battery-Powered Industrial Controllers, Legacy Equipment Repair and Sustaining Engineering, JTAG-Based Debug and In-System Programming Stations, Low-Voltage Embedded Communication Nodes, Prototyping and Educational Embedded Platforms, External-Memory-Expanded Measurement Systems.
Battery-Powered Industrial Controllers
The ATMEGA162V-1PC fits battery-backed industrial control nodes because its 1.8V to 3.6V supply range operates directly from a 3V lithium cell or two-cell alkaline pack without a regulator, and the AVR core provides up to 1 MIPS per MHz so firmware can run at 1-2 MHz to minimize active current. The 35 I/O lines drive relays, valves, and status LEDs, while four Timer/Counters handle PWM and timing tasks. The external memory interface extends data logging capacity beyond the internal 1KB SRAM, and the 512B EEPROM stores calibration constants that survive power loss. Combined with AVR sleep modes, this yields multi-year service intervals in distributed sensing and control installations.
推薦
Legacy Equipment Repair and Sustaining Engineering
Through-hole 40-pin DIP packages remain the standard in socketed legacy industrial and test equipment, and the ATMEGA162V-1PC is purpose-built for this environment: no reflow, simple field replacement with a chip extractor, and 100% pin compatibility with the earlier ATmega161 for board-level retrofit. Because the ATmega162 executes most instructions in a single clock cycle, firmware ported from older ATmega161 designs runs faster on the same clock, and the JTAG interface permits in-system firmware updates without removing the chip from the socket. Engineers maintaining PLC I/O cards, motor controllers, and instrument mainboards use this part to keep aging fleets serviceable.
推薦
JTAG-Based Debug and In-System Programming Stations
The ATMEGA162V-1PC integrates a JTAG interface supporting Boundary-scan, on-chip debugging, and JTAG In-System Programming, making it well suited to development stations and production programming fixtures. Engineers connect AVR JTAGICE-class tools to the four JTAG pins to set breakpoints, inspect registers, and single-step code while the target runs at its true 1.8-3.6V supply, catching undervoltage timing faults that bench programmers miss. The self-programming Flash with Read-While-Write and a dedicated boot section also enables field-updateable firmware over UART1, so deployed units receive patches without opening the enclosure - a significant advantage in remote or hard-to-access installations.
推薦
Low-Voltage Embedded Communication Nodes
With two hardware USARTs (UART0 and UART1), SPI, and TWI-style peripheral set within 35 I/O lines, the ATMEGA162V-1PC serves as a protocol bridge in low-voltage communication nodes - converting RS-485 fieldbus traffic to SPI peripherals, or forwarding Modus frames between redundant links. The 1.8-3.6V rail matches 3.3V transceivers and sensors directly, eliminating level shifters. The -1 speed grade's 8 MHz ceiling is ample for standard baud rates, and the single-cycle RISC core keeps interrupt latency low so both UARTs can run full-duplex at high rates without dropped bytes. The external memory interface buffers packet queues beyond the internal 1KB SRAM when needed.
推薦
Prototyping and Educational Embedded Platforms
The DIP-40 through-hole package makes the ATMEGA162V-1PC a natural fit for breadboard prototyping, university microcontroller labs, and hobby platforms: it inserts into standard solderless breadboards, survives repeated insertion cycles, and is easy to hand-solder with a basic iron. The 16KB Flash and JTAG support give students a realistic debugging workflow with professional tools, while the four Timer/Counters, dual UARTs, and 35 I/O lines support multi-peripheral course projects - motor control plus serial telemetry plus user interface in one chip. Running at 1.8-3.6V, boards are safe to probe with common 3.3V lab equipment, and the AVR instruction set remains widely documented for self-study.
推薦
External-Memory-Expanded Measurement Systems
The ATmega162 external memory interface lets the ATMEGA162V-1PC address external SRAM or memory-mapped peripherals, which is decisive in measurement systems that capture waveform buffers or long data sequences larger than the internal 1KB SRAM. PORTA serves as the multiplexed address/data bus, PORTC provides upper address lines, and ALE demultiplexes the bus - a classic 8051-style memory map AVR engineers can configure via the SRE and SRW bits. Four Timer/Counters with compare modes generate precise sample clocks, and the 8 MIPS core performs threshold detection and framing in real time while streaming results over UART at low clock rates for minimal power draw.
推薦
推薦產品摘要
工程參考資料，適用於 ATMEGA162V-1PC — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATMEGA162V-1PI | ATMEGA162L-8PI | ATMEGA162-16PC | ATMEGA162-16PU | ATMEGA161L-4PI |
|---|---|---|---|---|---|---|
| Package | 40-pin PDIP (DIP-40) | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology (Atmel) |
| Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.7 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 2.7 V to 5.5 V |
| Max Clock Speed | 8 MHz | 8 MHz | 8 MHz | 16 MHz | 16 MHz | 4 MHz |
| Flash / SRAM / EEPROM | 16KB / 1KB / 512B | 16KB / 1KB / 512B | 16KB / 1KB / 512B | 16KB / 1KB / 512B | 16KB / 1KB / 512B | 16KB / 1KB / 512B |
| JTAG Interface | Yes (debug, Boundary-scan, ISP) | Yes | Yes | Yes | Yes | No (no JTAG) |
| Temperature Grade | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| ATmega161 Compatibility | 100% pin compatible (successor) | Yes (same die as this part) | Yes | Yes | Yes | Is the ATmega161 (fuse locations differ) |
主要差異化特點
- Low-voltage operation for battery designs (對比ATMEGA162-16PC)
- Full-speed 8 MHz within its voltage class (對比ATMEGA161L-4PI)
- Commercial-grade cost advantage (對比ATMEGA162V-1PI)
- Broader voltage window at same speed (對比ATMEGA162L-8PI)
設計說明
Respect the -1 speed/voltage derating: ATMEGA162V-1PC is specified for 0-8 MHz only within 1.8-3.6V. If your board has a 5V rail, do not socket this V-graded part - the absolute maximum exceeds its operating range and the L or standard grade (2.7-5.5V / 4.5-5.5V) must be used instead. For battery designs, decouple each VCC/GND pair with 100 nF ceramics placed within a few millimeters of pins 10 and 11, plus 10 uF bulk at the board entry to survive inductive harness drops in industrial cabinets.
When migrating from ATmega161, the Atmel datasheet explicitly warns that fuse-bit locations and electrical characteristics differ between the two devices. Production programmers saved with ATmega161 fuse maps will set wrong bits on ATmega162 - verify JTAGEN, BOOTRST, and CKOPT settings in the new device's fuse map before first flash. Also note ATmega161 lacks JTAG, so toolchain files must switch to JTAGICE mode and Boundary-scan test fixtures will only pass on the ATmega162-based board.
In DIP-40 socketed designs, keep the XTAL1/XTAL2 crystal traces (pins 12-13) short and place load capacitors directly at the socket; long socket leads add parasitic capacitance that can shift a marginal crystal below tolerance at 8 MHz. If the external memory interface is used, route the PORTA multiplexed address/data bus as a controlled group with ALE (PE1) adjacent, and qualify external devices with the SRW wait-state bits since fast SRAM may need zero wait states only at low clock rates.
Thermal management is not a concern at this power level: an AVR 8-bit MCU at 8 MHz and 3.6V dissipates on the order of tens of milliwatts, far below the PDIP-40 package capability, so no heatsink or copper pour is required. Focus instead on the commercial temperature ceiling (0C to +70C) - for enclosures expected to exceed 70C ambient, substitute ATMEGA162V-1PI, which is industrial rated to +85C in the identical DIP-40 footprint.
合規資訊
Compliance status for this specific commercial-grade DIP variant was not stated in the retrieved web data; consult the Microchip product page and material declaration documents. AEC-Q100 is not applicable to this consumer/industrial AVR MCU.
