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