80C552 Datasheet, PDF (5/23 Pages) NXP Semiconductors – Single-chip 8-bit microcontroller

Philips Semiconductors
Single-chip 8-bit microcontroller with 10-bit A/D,
capture/compare timer, high-speed outputs, PWM
Product data
80C552/83C552
BLOCK DIAGRAM
T0
T1
3
3
INT0 INT1
3
3
V_DD
V_SS
PWM0
PWM1
AV_SS AV_REF ADC0-7 SDA SCL
–+
AV_DD STADC
51 1
XTAL1
XTAL2
EA
ALE
PSEN
3
WR
3
RD
0
AD0-7
2
A8-15
T0, T1
TWO 16-BIT
TIMER/EVENT
COUNTERS
CPU
80C51 CORE
EXCLUDING
ROM/RAM
PARALLEL I/O
PORTS AND
EXTERNAL BUS
SERIAL
UART
PORT
PROGRAM
MEMORY
8k x 8 ROM
DATA
MEMORY
256 x 8 RAM
DUAL
PWM
ADC
SERIAL
I²C PORT
8-BIT INTERNAL BUS
16
8-BIT
PORT
FOUR
16-BIT
CAPTURE
LATCHES
T2
16-BIT
TIMER/
EVENT
COUNTERS
16
T2
16-BIT
COMPARA-
TORS
wITH
REGISTERS
COMPARA-
TOR
OUTPUT
SELECTION
T3
WATCHDOG
TIMER
33
P0 P1 P2 P3 TxD RxD
P5
P4
1
CT0I-CT3I
1
T2
1
RT2
0 ALTERNATE FUNCTION OF PORT 0
1 ALTERNATE FUNCTION OF PORT 1
2 ALTERNATE FUNCTION OF PORT 2
3 ALTERNATE FUNCTION OF PORT 3
4 ALTERNATE FUNCTION OF PORT 4
5 ALTERNATE FUNCTION OF PORT 5
4
CMSR0-CMSR5 RST EW
CMT0, CMT1
SU01692
2002 Sep 03
5