P89C51RC Datasheet, PDF (3/50 Pages) NXP Semiconductors – 80C51 Central Processing Unit

Philips Semiconductors
80C51 8-bit Flash microcontroller family
32K/64K ISP FLASH with 512–1K RAM
Product specification
P89C51RC+/P89C51RD+
ORDERING INFORMATION
DEVICE NUMBER (P89C51RC+)
P89C51RC+ (FLASH)
P89C51RD+ (FLASH)
TEMPERATURE RANGE/OPERATING
FREQUENCY, MAX (I)
I = 33 MHz, 0_C to 70_C
J = 33 MHz, –40_C to +85_C
BLOCK DIAGRAM
V_CC
V_SS
RAM ADDR
REGISTER
RAM
P0.0–P0.7
PORT 0
DRIVERS
PORT 0
LATCH
P2.0–P2.7
PORT 2
DRIVERS
PORT 2
LATCH
PACKAGE (A)
A = PLCC
B = PQFP
N = PDIP
FLASH
B
REGISTER
ACC
TMP2
TMP1
STACK
POINTER
8
PROGRAM
ADDRESS
REGISTER
ALU
PSW
PSEN
ALE
EAV_PP
RST
TIMING
AND
CONTROL
PD
OSCILLATOR
XTAL1
XTAL2
PORT 1
LATCH
PORT 1
DRIVERS
P1.0–P1.7
SFRs
TIMERS
P.C.A.
BUFFER
PC
INCRE-
MENTER
8
16
PROGRAM
COUNTER
PORT 3
LATCH
DPTR’S
MULTIPLE
PORT 3
DRIVERS
P3.0–P3.7
SU01065
1999 Oct 27
3