Features:

Product Name: AT89C4051-24PU
SN: AT89C4051-24PU
Product Number: SP-C8733
Footprint: PDIP-20P3
AT89C4051-24PU
Flash (Kbytes): 4
Pin Count: 20
Max. Operating Freq. (MHz): 24
CPU: 8051-12C
Max I/O Pins: 15
UART: 1
SRAM (Kbytes): 0.125
Operating Voltage (Vcc): 2.7 to 6.0
Timers: 2
Packages: PDIP-20

Dataheet: Download Datasheet