Specifications:

Series: 89C
Mounting Style: SMD/SMT
Package/Case: PLCC-44
Core: 8051
Program Memory Size: 4 kB
Data Bus Width: 8 bit
ADC Resolution: No ADC
Maximum Clock Frequency: 20 MHz
Number of I/Os: 32 I/O
Data RAM Size: 128 B
Supply Voltage - Min: 4 V
Supply Voltage - Max: 6 V
Minimum Operating Temperature: 0 C
Maximum Operating Temperature: 70 C
Brand: Microchip Technology
Height: 3.48 mm
Length: 16.7 mm
Number of Timers/Counters: 2 Timer
Product: MCU
Product Type: 8-bit Microcontrollers - MCU
Program Memory Type: Flash