Key facts
- Brand
- Almel
- Model
- ATMEGA128
- Documents
- 2
- Languages
- ZH
- Last added
- 2000-01-01
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Atmel ATmega128/ATmega128L Datasheet
The ATmega128 series is an 8‑bit AVR® microcontroller with a high‑performance RISC core, offering up to 16 MIPS at 16 MHz. It provides 128 KB of in‑system programmable Flash, 4 KB EEPROM, 4 KB SRAM, and a rich set of peripherals including timers, PWM, ADC, USART, SPI, TWI and JTAG.
The device operates from 2.7 V to 5.5 V (ATmega128L) or 4.5 V to 5.5 V (ATmega128) and includes 53 general‑purpose I/O pins, 32 general‑purpose registers, and multiple low‑power sleep modes for energy‑efficient designs. This manual is written in Chinese.
Almel ATMEGA128 specifications
| Flash memory size | 128 KB |
|---|---|
| EEPROM size | 4 KB |
| SRAM size | 4 KB |
| General‑purpose I/O pins | 53 |
| General‑purpose registers | 32 |
| Operating voltage (ATmega128L) | 2.7 V – 5.5 V |
| Maximum CPU frequency | 16 MHz (16 MIPS) |
| ADC | 8‑bit, 10‑bit resolution, 8 single‑ended, 7 differential channels |
| Timers | Two 8‑bit timers, two 16‑bit timers with PWM |
All Almel ATMEGA128 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How many write/erase cycles does the Flash memory support?
The Flash memory is rated for 10,000 write/erase cycles.
What voltage range does the ATmega128L operate at?
ATmega128L operates from 2.7 V to 5.5 V.
What is the flash memory size of the ATmega128?
The ATmega128 contains 128 KB of in‑system programmable Flash memory.
How many general‑purpose I/O pins does the ATmega128 have?
It provides 53 general‑purpose I/O pins.