AT89C4051 Atmel Corporation, AT89C4051 Datasheet - Page 2

• Manufacturer Part Number: AT89C4051
• Manufacturer: Atmel Corporation

Specifications of AT89C4051

• Flash (kbytes): 4 Kbytes
• Max. Operating Frequency: 24 MHz
• Cpu: 8051-12C
• Max I/o Pins: 15
• Uart: 1
• Sram (kbytes): 0.125
• Operating Voltage (vcc): 2.7 to 6.0
• Timers: 2

2. Pin Configuration
2.1
3. Block Diagram
2
PDIP/SOIC
AT89C4051
(INT0) P3.2
(INT1) P3.3
(RXD) P3.0
(TXD) P3.1
(TO) P3.4
RST/VPP
(T1) P3.5
XTAL2
XTAL1
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VCC
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1 (AIN1)
P1.0 (AIN0)
P3.7
1001F–MICRO–6/08