at89c51rc-33pc ATMEL Corporation, at89c51rc-33pc Datasheet - Page 3
at89c51rc-33pc
Manufacturer Part Number
at89c51rc-33pc
Description
8-bit Microcontroller With 32k Bytes Flash
Manufacturer
ATMEL Corporation
Datasheet
1.AT89C51RC-33PC.pdf
(36 pages)
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3. Block Diagram
1920C–MICRO–03/05
ALE/PROG
EA / V
PSEN
RST
V
GND
PP
CC
CONTROL
REGISTER
TIMING
AND
OSC
B
RAM ADDR.
REGISTER
INSTRUCTION
REGISTER
WATCH
DOG
ACC
TMP2
RAM
PORT 1 DRIVERS
PSW
P1.0 - P1.7
PORT 0 DRIVERS
PORT 1
LATCH
ALU
P0.0 - P0.7
PORT 0
LATCH
TMP1
INTERRUPT, SERIAL PORT,
AND TIMER BLOCKS
PORT 2
LATCH
PORT 3 DRIVERS
PORT 2 DRIVERS
POINTER
P2.0 - P2.7
STACK
P3.0 - P3.7
PORT 3
LATCH
FLASH
INCREMENTER
PROGRAM
REGISTER
PROGRAM
COUNTER
ADDRESS
BUFFER
DUAL
DPTR
PC
AT89C51RC
3
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