83C576 Datasheet, PDF (3/46 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators, failure detect circuitry, watchdog timer

Philips Semiconductors
80C51 8-bit microcontroller family
8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators,
failure detect circuitry, watchdog timer
BLOCK DIAGRAM
V_CC
V_SS
LOW
VOLTAGE
DETECT
A
RAM ADDR
REGISTER
UPI
CONTROL
POWER
ON
DETECT
B
RAM
P0.0-P0.7
PORT 0
DRIVERS
PORT 0
LATCH
P2.0-P2.7
PORT 2
DRIVERS
PORT 2
LATCH
Product specification
83C576/87C576
ROM/
EPROM
B
REGISTER
ACC
TMP2
TMP1
STACK
POINTER
PSEN
ALE
EA
RST
WATCHDOG
TIMER
B
A
TIMING
AND
CONTROL
PD
OSCILLATOR
CLK AND OSC
FAILURE
DETECT
XTAL1
XTAL2
ALU
PSW
SFRs
TIMERS
PCA
PORT 1
LATCH
PORT 1
DRIVERS
10-BIT
ANALOG TO DIGITAL
CONVERTER
+AV_CC
PORT 3
LATCH
PORT 3
DRIVERS
P3.0-P3.7
P1.0-P1.5
–AV_SS
PROGRAM
ADDRESS
REGISTER
BUFFER
PC
INCRE-
MENTER
PROGRAM
COUNTER
DPTR
PWM
COMPARATOR
BLOCK
SU00255B
1998 Jun 04
3