Philips Semiconductors
Product specification
Single-chip 8-bit microcontroller
80C552/83C552
BLOCK DIAGRAM
T0
T1
INT0
INT1
PWM0 PWM1
ADC0-7 SDA SCL
AV
AV
REF
SS
AV
–
+
V
V
SS
5
1
1
DD
STADC
3
3
3
3
DD
XTAL1
T0, T1
PROGRAM
MEMORY
8k x 8 ROM
DATA
MEMORY
256 x 8 RAM
DUAL
PWM
SERIAL
C PORT
TWO 16-BIT
TIMER/EVENT
COUNTERS
XTAL2
EA
ADC
2
CPU
I
ALE
80C51 CORE
EXCLUDING
ROM/RAM
PSEN
3
WR
RD
8-BIT INTERNAL BUS
3
0
16
AD0-7
T2
T2
16-BIT
TIMER/
EVENT
FOUR
16-BIT
CAPTURE
LATCHES
16-BIT
COMPARA-
TORS
wITH
REGISTERS
COMPARA-
TOR
OUTPUT
T3
16
PARALLEL I/O
PORTS AND
EXTERNAL BUS
SERIAL
UART
PORT
8-BIT
PORT
WATCHDOG
TIMER
2
SELECTION
COUNTERS
A8-15
3
3
1
1
1
4
P0
P1
P2
P3
TxD
RxD
P5
P4
CT0I-CT3I
T2
RT2
CMSR0-CMSR5
CMT0, CMT1
RST EW
3
4
5
0
1
2
ALTERNATE FUNCTION OF PORT 3
ALTERNATE FUNCTION OF PORT 4
ALTERNATE FUNCTION OF PORT 5
ALTERNATE FUNCTION OF PORT 0
ALTERNATE FUNCTION OF PORT 1
ALTERNATE FUNCTION OF PORT 2
5
1998 Aug 13
NXP [ NXP ]
