ATMEGA16A-AU vs ATMEGA164P-20AQ Comparison
Detailed side-by-side comparison of ATMEGA16A-AU by Microchip Technology and ATMEGA164P-20AQ by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATMEGA16A-AU
ATMEGA16A-AU - 16KB Flash AVR MCU 16MHz TQFP-44 | Microchip
ATMEGA16A-AU β ActiveMicrochip Technology
ATMEGA164P-20AQ
ATMEGA164P-20AQ - 16KB Flash 8-bit AVR MCU 20MHz TQFP-44 | Microchip
ATMEGA164P-20AQ β ActiveSpecification Comparison
| Parameter | ATMEGA16A-AU | ATMEGA164P-20AQ |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.05 | $2.94 |
| Core Architecture | 8-bit AVR enhanced RISC | AVR 8-bit RISC |
| Flash Program Memory | 16 KB (8K x 16), self-programmable | β |
| SRAM | 1024 bytes | 1 KB |
| EEPROM | 512 bytes | 512 B |
| Maximum Clock Frequency | 16 MHz | β |
| Performance | Approx. 1 MIPS per MHz | β |
| Instruction Set | 133 instructions, most single-cycle | 131 instructions, mostly single-cycle |
| Supply Voltage | 2.7 V to 5.5 V | β |
| ADC | 8-channel, 10-bit | 10-bit, 8 channels |
| Timers | Two 8-bit + one 16-bit with PWM | β |
| Communication Interfaces | USART, SPI, TWI (I2C-compatible) | β |
| Debug Interface | JTAG (on-chip debug and boundary scan) | β |
| Programmable I/O | 32 programmable I/O lines | β |
| Package | 44-TQFP (10 x 10 mm, 1 mm height) | 44-TQFP (10 x 10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| In-System Programming | Yes (ISP via SPI) | β |
| Life Cycle Stage | ACTIVE | β |
| RoHS Status | Compliant | Compliant (green package) |
| Flash Memory | β | 16 KB (8K x 16) ISP, read-while-write |
| Maximum CPU Speed | β | 20 MHz |
| Supply Voltage Range | β | 2.7 V to 5.5 V |
| General Purpose I/O | β | 32 lines |
| General Purpose Working Registers | β | 32 |
| MIPS Throughput | β | Up to 20 MIPS at 20 MHz |
| Operating Temperature | β | -40C to +85C (extended, A suffix) |
| Serial Interfaces | β | USART, SPI, TWI (I2C) |
| Low Power Technology | β | picoPower |
| Watchdog Timer | β | Programmable WDT with separate oscillator |