ATMEGA162V-1MC - 8-bit AVR MCU, 16KB Flash 1MHz | Microchip
MPN: ATMEGA162V-1MC ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.96 | $496.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $3.95 | $3,950.00 |
ATMEGA162V-1MC Overview
An 8-bit AVR microcontroller is a Harvard-architecture processor that executes most instructions in a single clock cycle, achieving throughput close to 1 MIPS per MHz. Within the power-management hierarchy of embedded systems, the microcontroller unit (MCU) sits at the center of the control chain, integrating CPU, program memory, data memory, timers, and communication peripherals in one chip, reducing bill-of-materials count versus discrete MCU-plus-logic designs.
Key features include an external memory interface supporting up to 64KB of optional external SRAM, 35 general purpose I/O lines, and a JTAG interface providing Boundary-scan capability, on-chip debugging, and in-system programming. The Flash memory offers 1,000 write/erase cycles with true Read-While-Write operation, and an optional boot code section with independent lock bits enables In-System Programming by an on-chip boot program.
The AVR enhanced RISC core pairs 32 general purpose working registers directly with the ALU, allowing single-cycle register-to-register operations. Peripherals include four flexible Timer/Counters with compare modes, two USARTs for serial communication, an SPI interface, a 10-bit ADC, and an analog comparator, giving the ATmega162 balanced capability for mixed serial/parallel control tasks. The wide 1.8V to 5.5V supply range of the V-grade variant suits battery-powered and 5V industrial designs alike.
Typical applications include industrial automation control nodes, battery-powered instrumentation, and legacy serial communication bridges where dual USARTs and an external memory interface are required. The 1 MHz speed grade targets low-noise, low-power designs rather than high-throughput processing.
Design consideration: the V suffix denotes the 1.8V-5.5V supply range and 1 MHz maximum frequency; if your design runs at 3.3V and needs more than 1 MHz, choose the L-grade (up to 8 MHz) or standard grade instead - the suffix determines both speed and voltage limits.
This page synthesizes distributor pricing context, same-package drop-in alternatives, and practical design notes not found together in the manufacturer datasheet.
Drop-in alternatives for ATMEGA162V-1MC — 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 ATMEGA162V-1MC (same form factor and footprint) — differing in Package, Core Architecture, Supply Voltage Range, EEPROM, EEPROM Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMEGA162L-8MC
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →ATMEGA162-16MC
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$2.19 / Unit
View Datasheet →ATMEGA162-16MUR
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$3.58 / Unit
View Datasheet →ATMEGA162V-1MC Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit AVR RISC |
| Core Size | 8-bit |
| Maximum Clock Frequency | 1 MHz |
| Program Memory Size | 16KB (8K x 16) Flash |
| Flash Write/Erase Endurance | 1,000 cycles |
| SRAM Size | 1KB |
| EEPROM Size | 512B |
| Supply Voltage Range | 1.8 V to 5.5 V |
| External Memory Interface | Up to 64KB external memory |
| General Purpose I/O | 35 I/O lines |
| Working Registers | 32 general purpose registers |
| Timers/Counters | 4 flexible Timer/Counters with compare modes |
| JTAG Interface | Boundary-scan, on-chip debug, programming |
| Package | 44-VQFN (7x7 mm) |
| Mounting Type | Surface Mount |
| MIPS Rating | Up to 1 MIPS per MHz |
ATMEGA162V-1MC 44-vqfn (7x7 mm) Pin Configuration Guide
Pin configuration for ATMEGA162V-1MC (44-vqfn (7x7 mm) 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 ATMEGA162V-1MC.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMEGA162V-1MC is suitable for 6 applications: Battery-Powered Industrial Sensors, Dual-Serial Communication Bridges, External Memory Expansion Systems, Legacy AVR System Maintenance, Motor Control and Timer-Based Automation, Embedded Security and Debug-Instrumentation.
Battery-Powered Industrial Sensors
The ATMEGA162V-1MC's 1.8V-5.5V supply range and 1 MHz V-grade speed make it a strong fit for battery-operated industrial sensor nodes, where the AVR core's near-1 MIPS-per-MHz efficiency lets the system run at a low clock and still complete sampling, filtering, and communication tasks. Its 1KB SRAM handles modest buffering, and the 512B EEPROM stores calibration coefficients that survive power loss. Sleep modes plus slow-clock operation minimize average current draw. The 44-VQFN (7x7 mm) package conserves PCB area in compact probe housings, while 35 GPIO lines drive status LEDs, switches, and level translation directly without external glue logic.
Recommended
Dual-Serial Communication Bridges
With two independent USARTs, the ATMEGA162V-1MC is well suited to protocol-conversion bridges such as RS-232-to-RS-485 gateways or modem front-ends. Each USART can run at different baud rates, letting the MCU stream data between two serial domains while the 1 MHz clock keeps radiated emissions low - valuable in electrically noisy plants. The 16KB Flash accommodates buffered protocol stacks and CRC routines, and the JTAG interface supports on-chip debugging of concurrent channel code. At the V-grade's 1 MHz limit, sustained throughput is modest, so this application fits low-speed telemetry links rather than megabit-class transfers.
Recommended
External Memory Expansion Systems
The ATmega162 is unusual among compact AVRs in offering a parallel external memory interface addressing up to 64KB beyond its internal 1KB SRAM. In the ATMEGA162V-1MC, Port A forms the multiplexed address/data bus and Port C supplies upper address bits, allowing a single external SRAM such as a 32Kx8 device to extend data storage for logging applications. This suits battery dataloggers that must retain weeks of samples. Designers must budget a latch (e.g., 74x573) for address demultiplexing and verify SRAM access times against the conservative 1 MHz bus timing of the V-grade device.
Recommended
Legacy AVR System Maintenance
Many installed industrial products built around the Atmel ATmega162 in the 44-pin MLF/VQFN footprint require maintenance sourcing as original stock ages. The ATMEGA162V-1MC serves as a form-fit-function replacement in boards specified for the V-grade, and its JTAG port allows existing firmware images to be re-flashed in-circuit without desoldering. Because Microchip continues the ATmega162 family, engineers can move to the ATMEGA162L-8MC grade on the identical footprint when the supply is 2.7V or higher, gaining clock headroom while preserving the PCB layout and test fixtures.
Recommended
Motor Control and Timer-Based Automation
The four flexible Timer/Counters with compare modes in the ATMEGA162V-1MC support PWM generation, frequency measurement, and event capture needed in small automation equipment such as valve controllers, conveyor counters, and fan-speed regulation. Two 8-bit and two 16-bit timers allow simultaneous independent timing domains, while compare outputs drive power stages through external MOSFET drivers. The 35 GPIO lines handle limit switches and operator interfaces. At 1 MHz, PWM carrier frequencies are low, suiting relay- and slow-PWM-based control rather than high-frequency switching; the 16 MHz grade suits faster loops on the same footprint.
Recommended
Embedded Security and Debug-Instrumentation
The JTAG interface of the ATMEGA162V-1MC provides Boundary-scan testing, on-chip debugging, and protected in-system programming, making the device suitable for instrumentation and equipment whose service procedures require field firmware updates. The optional boot code section with independent lock bits enables an on-chip boot program to update application Flash safely, while lock bits protect intellectual property. Boundary-scan chain access through the 44-VQFN package supports production test of dense boards where physical probe access is impractical, and the wide 1.8V-5.5V supply allows reuse across several product voltage variants.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA162V-1MC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA162L-8MC | ATMEGA162-16MC | ATMEGA162-16MUR |
|---|---|---|---|---|
| Package | 44-VQFN (7x7) | 44-VQFN (7x7) - same | 44-VQFN (7x7) - same | 44-VQFN (7x7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 1 MHz | 8 MHz | 16 MHz | 16 MHz |
| Supply Voltage | 1.8 V to 5.5 V | 2.7 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Flash Memory | 16KB | 16KB | 16KB | 16KB |
| SRAM / EEPROM | 1KB / 512B | 1KB / 512B | 1KB / 512B | 1KB / 512B |
| JTAG Interface | Yes | Yes | Yes | Yes |
| Typical Use Case | Ultra-low-voltage / low-EMI designs | 3.3V/5V general purpose | 5V high-throughput | 5V high-volume reel assembly |
Key Differentiators
- Widest supply range in the ATmega162 family (vs ATMEGA162L-8MC)
- Lowest electromagnetic emission option (vs ATMEGA162-16MC)
- External memory interface rare in compact AVRs (vs ATMEGA162L-8MC)
Design Notes
The V-grade device alone in the ATmega162 family operates down to 1.8V, but maximum clock falls to 1 MHz. Estimated: dynamic power scales roughly linearly with frequency and with V^2, so running at 1.8V/1 MHz versus 5V/16 MHz reduces core dynamic energy by roughly two orders of magnitude - a key reason to choose this grade for coin-cell or single-cell Li designs. Decouple VCC and AVCC separately with 100 nF ceramics placed within 5 mm of each pin, and tie AVCC to VCC through a low-pass filter when the ADC is used.
The 44-VQFN (7x7 mm) MLF-style package exposes a die-attach pad on the underside that must be soldered to a grounded thermal pad array on the PCB for mechanical reliability and heat spreading; this pad is also the primary ground connection. Use an array of thermal vias to the ground plane. Verify your footprint against the Microchip MLF-44 drawing - several legacy footprints in CAD libraries use 0.5 mm versus 0.65 mm lead pitches that will not align. Inspect solder joints via X-ray since perimeter pads are hidden under the package body.
Ordering-code confusion is the most frequent sourcing error with this part: the suffix controls package AND grade. MC is the 44-VQFN, AC is TQFP44, PI/PC are PDIP; V/L/no-letter control voltage and speed. A substituted AC part will not mount on an MC footprint. Also confirm JTAG fuse state: JTAGEN is factory-enabled and the JTAG pins (TCK/TMS/TDO/TDI) are not available as GPIO unless the fuse is cleared - designs expecting 4 extra I/O lines must account for this in firmware and schematics.
Compliance Information
Compliance attributes for this legacy ordering code were not stated in the provided web data; verify via Microchip's product page material declaration before new EU-market designs.
