- RS Stock No.:
- 177-3410
- Mfr. Part No.:
- AT89C51RB2-RLTUM
- Brand:
- Microchip
Discontinued product
- RS Stock No.:
- 177-3410
- Mfr. Part No.:
- AT89C51RB2-RLTUM
- Brand:
- Microchip
Technical Reference
Legislation and Compliance
Product Details
High-performance, 8-bit microController: 16KB flash. It retains all features of the 80C52 with 256 Bytes of internal RAM, a 9-source 4-level interrupt controller, and three timer/counters. It features a programmable counter array, an XRAM of 1024 bytes, hardware watchdog timer, keyboard interface, SPI interface, versatile serial channel that facilitates multiprocessor communication (EUART), and a speed improvement mechanism (X2 mode). Implementing an external brown-out is recommended to prevent any flash/EEPROM corruption during power-on or power-off.
80C52 Compatible
8051 Pin and Instruction Compatible
Four 8-bit I/O Ports
Three 16-bit Timer/Counters
256 Bytes Scratch Pad RAM
9 Interrupt Sources with 4 Priority Levels
Dual Data Pointer
Variable Length MOVX for Slow RAM/Peripherals
8051 Pin and Instruction Compatible
Four 8-bit I/O Ports
Three 16-bit Timer/Counters
256 Bytes Scratch Pad RAM
9 Interrupt Sources with 4 Priority Levels
Dual Data Pointer
Variable Length MOVX for Slow RAM/Peripherals
Specifications
Attribute | Value |
---|---|
Family Name | AT89C51 |
Package Type | VQFP |
Mounting Type | Surface Mount |
Pin Count | 44 |
Device Core | 80C52 |
Data Bus Width | 8bit |
Program Memory Size | 16 kB |
Maximum Frequency | 40MHz |
RAM Size | 1.28 kB |
Number of PWM Units | 1 x 8 bit |
Number of SPI Channels | 1 |
Typical Operating Supply Voltage | 5 V |
Number of UART Channels | 1 |
Length | 10.1mm |
Maximum Operating Temperature | +85 °C |
Width | 10.1mm |
Height | 1.45mm |
Dimensions | 10.1 x 10.1 x 1.45mm |
Minimum Operating Temperature | -40 °C |
Program Memory Type | Flash |
Pulse Width Modulation | 1 (5 x 8 bit) |
Instruction Set Architecture | 8051 |