AT89C1051-12PA ATMEL [ATMEL Corporation], AT89C1051-12PA Datasheet - Page 2

• Manufacturer Part Number: AT89C1051-12PA
• Description: 8-Bit Microcontroller with 1K Byte Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Block Diagram
4-4
RST
V
GND
CC
CONTROL
REGISTER
TIMING
OSC
AND
B
RAM ADDR.
AT89C1051
REGISTER
INSTRUCTION
REGISTER
COMPARATOR
ANALOG
+
-
ACC
TMP2
RAM
PORT 1 DRIVERS
PSW
P1.0 - P1.7
PORT 1
LATCH
ALU
TMP1
AND TIMER BLOCKS
INTERRUPT,
PORT 3 DRIVERS
P3.0 - P3.5
POINTER
STACK
PORT 3
LATCH
FLASH
P3.7
INCREMENTER
PROGRAM
PROGRAM
REGISTER
ADDRESS
COUNTER
BUFFER
DPTR
PC