ATMEGA640-16AU vs ATMEGA640-16CU Comparison
Detailed side-by-side comparison of ATMEGA640-16AU by Microchip Technology and ATMEGA640-16CU 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
ATMEGA640-16AU - 8-bit AVR MCU 16MHz 64KB Flash | Microchip
ATMEGA640-16AU ✓ ActiveMicrochip Technology
ATMEGA640-16CU - 8-bit AVR MCU 16MHz 64KB CBGA-100 | Microchip
ATMEGA640-16CU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA640-16AU | ATMEGA640-16CU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $6.90 | $8.61 |
| Core Architecture | AVR Enhanced RISC (8-bit) | 8-bit AVR RISC |
| Series | ATmega640 | — |
| Program Memory (Flash) | 64 KB (32K x 16) | — |
| SRAM | 8 KB | — |
| EEPROM | 4 KB | — |
| Maximum Clock Frequency | 16 MHz | 16 MHz |
| Throughput | ~16 MIPS | — |
| Supply Voltage | 2.7 V to 5.5 V | — |
| I/O Pins | 86 | — |
| ADC | 16 channels x 10-bit | — |
| PWM Channels | 16 | — |
| Timers/Counters | 6 | — |
| USART | 4 | — |
| SPI | 1 | — |
| TWI (I2C) | 1 | — |
| Package | 100-pin TQFP (14x14 mm) | 100-CBGA (9x9 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) | Industrial temperature range (-40C to +85C) |
| In-System Programming | Yes (ISP) | — |
| On-Chip Debug | JTAG | — |
| RoHS Status | Compliant | — |
| Program Memory Size (FLASH) | — | 64KB (32K x 16) |
| Program Memory Type | — | In-System Programmable FLASH |
| SRAM Size | — | 8KB |
| EEPROM Size | — | 4KB |
| Supply Voltage Range | — | 4.5 V to 5.5 V |
| I/O Ports / Lines | — | 53 I/O |
| Number of USARTs | — | 4 |
| ADC Resolution | — | 10-bit |
| ADC Channels | — | 8/16-channel (per datasheet family description) |
| Serial Interfaces | — | SPI, 2-wire (I2C-compatible TWI), USART |
| Watchdog Timer | — | Programmable, separate on-chip oscillator |
| Analog Comparator | — | On-chip |
| Data Bus Width | — | 8 Bit |
| RoHS / Green Status | — | Green package |
| Debug / Programming | — | ICSP via 2 I/O pins plus reset (MPLAB SNAP compatible) |