Key facts
- Brand
- Atmel
- Model
- AT89C51
- Category
- microcontrollers
- Industry
- Electronics
- Documents
- 29
- Languages
- ZH · EN
- Last added
- 2022-09-23
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Atmel AT89C5131A-M Handbook
This handbook describes the AT89C5131A-M 8‑bit microcontroller, its core architecture, memory resources, and integrated USB functionality. It includes a feature overview, block diagram, pinout tables, and detailed signal descriptions for peripherals such as UART, SPI, TWI, timers, and the programmable counter array.
The document also covers power‑management modes, hardware watchdog operation, electrical characteristics, ordering information, and packaging options. It serves as a reference for designers and developers implementing the device in embedded applications.
ATMEL AT89C51 specifications
| Core Type | 8-bit MCU C51 Core Based (Fmax = 20 MHz) |
|---|---|
| Internal RAM | 2304 Bytes |
| Code Memory (AT89C51SND1C) | 64K Bytes Flash |
| Code Memory (AT83SND1C) | 64K Bytes ROM |
| ADC Channels | 2 Channels 10-bit ADC, 8 kHz (8-true bit) |
| Operating Voltage | 3V, +10% |
| Temperature Range | -40°C to +85°C |
All ATMEL AT89C51 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
- ATMEL AT83SND1C AT89C51SND1C AT80C51SND1C handbook 216 p
- ATMEL - Single-Chip Flash Microcontroller with MP3 Decoder Human Interface AT83SND1C AT89C51SND1C AT80C51SND1Chandbook 44 p
- Atmel AT89C51CC03 Datasheet 195 p
- ATMEL 8-bit Flash Microcontroller with Full Speed USB Device AT89C5130A-M AT89C5131A-M handbook 187 p
- Atmel AT89C51RD2/AT89C51ED2 Datasheet 137 p
- Atmel AT89C5131 Datasheet 176 p
- Atmel AT89C5131A-L Datasheet 185 p
- Atmel AT89C5132 Datasheet 181 p
- Atmel AT89C51CC03 Datasheet 196 p
- Atmel AT89C51CC01 Datasheet 167 p
- Atmel AT89C51CC02 Datasheet 159 p
- Atmel AT89C51RC Microcontroller Datasheet 35 p
- Atmel AT89C51AC2 Datasheet 120 p
- Atmel AT89C51AC3 Datasheet 139 p
- ATMEL AT89C51IC2 handbook 146 p
- Atmel AT89C51RC2 Datasheet 126 p
- Atmel AT89C51RD2/ED2 Datasheet 135 p
- Atmel AT89C51RE2 Microcontroller Handbook 167 p
Questions answered in these manuals
What is the stated operating voltage for the AT89C51 microcontroller?
The working voltage for the AT89C51 is 5V.
What is the maximum oscillator frequency available for the AT89C51?
The maximum oscillator frequency selectable for the AT89C51 is 24MHz.
Does the chip support In-System Programming?
Yes, the AT89C51SND1C allows ISP through an embedded 4K Bytes of Boot Flash memory.
What is the typical operating current of this microcontroller?
The device typically operates at 25 mA under standard conditions.
Does the chip support In-System Programming (ISP)?
Yes, the AT89C51SND1C allows ISP through an embedded 4K Bytes of Boot Flash memory.
How many timers are available on the microcontroller?
The device provides two standard 16‑bit timers/counters.