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INTEGRATED CIRCUITS
80C552/83C552
Single-chip 8-bit microcontroller
Product specification
Supersedes data of 1998 Jan 06
IC20 Data Handbook
1998 Aug 13
Philips
Semiconductors

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Philips Semiconductors
Single-chip 8-bit microcontroller
Product specification
80C552/83C552
Single-chip 8-bit microcontroller with 10-bit A/D, capture/compare timer, high-speed outputs, PWM
DESCRIPTION
The 80C552/83C552 (hereafter generically
referred to as 8XC552) Single-Chip 8-Bit
Microcontroller is manufactured in an
advanced CMOS process and is a derivative
of the 80C51 microcontroller family. The
8XC552 has the same instruction set as the
80C51. Three versions of the derivative exist:
83C552—8k bytes mask programmable
ROM
80C552—ROMless version of the 83C552
87C552—8k bytes EPROM (described in a
separate chapter)
The 8XC552 contains a non-volatile 8k × 8
read-only program memory (83C552), a
volatile 256 × 8 read/write data memory, five
8-bit I/O ports, one 8-bit input port, two 16-bit
timer/event counters (identical to the timers of
the 80C51), an additional 16-bit timer coupled
to capture and compare latches, a 15-source,
two-priority-level, nested interrupt structure,
an 8-input ADC, a dual DAC pulse width
modulated interface, two serial interfaces
(UART and I2C-bus), a “watchdog” timer and
on-chip oscillator and timing circuits. For
systems that require extra capability, the
8XC552 can be expanded using standard
TTL compatible memories and logic.
FEATURES
80C51 central processing unit
8k × 8 ROM expandable externally to 64k
bytes
ROM code protection
An additional 16-bit timer/counter coupled
to four capture registers and three compare
registers
Two standard 16-bit timer/counters
256 × 8 RAM, expandable externally to 64k
bytes
Capable of producing eight synchronized,
timed outputs
A 10-bit ADC with eight multiplexed analog
inputs
Two 8-bit resolution, pulse width
modulation outputs
Five 8-bit I/O ports plus one 8-bit input port
shared with analog inputs
LOGIC SYMBOL
VSS
VDD
XTAL1
XTAL2
EA
ALE
PSEN
AVSS
AVDD
AVref+
AVref–
STADC
PWM0
PWM1
ADC0-7
I2C-bus serial I/O port with byte oriented
master and slave functions
Full-duplex UART compatible with the
standard 80C51
On-chip watchdog timer
Three speed ranges:
3.5 to 16MHz
3.5 to 24MHz (ROM, ROMless only)
3.5 to 30MHz (ROM, ROMless only)
Three operating ambient temperature
ranges:
P83C552xBx: 0°C to +70°C
P83C552xFx: –40°C to +85°C
(XTAL frequency max. 24 MHz)
P83C552xHx: –40°C to +125°C
(XTAL frequency max. 16 MHz)
LOW ORDER
ADDRESS AND
DATA BUS
CT0I
CT1I
CT2I
CT3I
T2
RT2
SCL
SDA
In addition, the 8XC552 has two software
selectable modes of power reduction—idle
mode and power-down mode. The idle mode
freezes the CPU while allowing the RAM,
timers, serial ports, and interrupt system to
continue functioning. The power-down mode
saves the RAM contents but freezes the
oscillator, causing all other chip functions to
be inoperative.
The device also functions as an arithmetic
processor having facilities for both binary and
BCD arithmetic plus bit-handling capabilities.
The instruction set consists of over 100
instructions: 49 one-byte, 45 two-byte, and
17 three-byte. With a 16MHz (24MHz)
crystal, 58% of the instructions are executed
in 0.75µs (0.5µs) and 40% in 1.5µs (1µs).
Multiply and divide instructions require 3µs
(2µs).
CMSR0-5
CMT0
CMT1
RST
EW
HIGH ORDER
ADDRESS AND
DATA BUS
RxD/DATA
TxD/CLOCK
INT0
INT1
T0
T1
WR
RD
1998 Aug 13
2

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Philips Semiconductors
Single-chip 8-bit microcontroller
PIN CONFIGURATIONS
Plastic Leaded Chip Carrier
Product specification
80C552/83C552
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
P4.3/CMSR3 10
P4.4/CMSR4 11
P4.5/CMSR5 12
P4.6/CMT0 13
60 AVSS
59 AVREF+
58 AVREF–
57 P0.0/AD0
P4.7/CMT1 14
56 P0.1/AD1
RST 15
55 P0.2/AD2
P1.0/CT0I 16
54 P0.3/AD3
P1.1/CT1I 17
53 P0.4/AD4
P1.2/CT2I 18
PLASTIC LEADED CHIP CARRIER
52 P0.5/AD5
P1.3/CT3I 19
51 P0.6/AD6
P1.4/T2 20
50 P0.7/AD7
P1.5/RT2 21
49 EA
P1.6/SCL 22
48 ALE
P1.7/SDA 23
47 PSEN
P3.0/RxD 24
46 P2.7/A15
P3.1/TxD 25
45 P2.6/A14
P3.2/INT0 26
44 P2.5/A13
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
* Do not connect.
SU00932
1998 Aug 13
3

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Philips Semiconductors
Single-chip 8-bit microcontroller
Plastic Quad Flat Pack
Product specification
80C552/83C552
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
P4.1/CMSR1 1
64 P5.7/ADC7
P4.2/CMSR2 2
NC* 3
63 AVDD
62 NC*
P4.3/CMSR3 4
P4.4/CMSR4 5
P4.5/CMSR5 6
P4.6/CMT0 7
61 AVSS
60 AVREF+
59 AVREF–
58 P0.0/AD0
P4.7/CMT1 8
57 P0.1/AD1
RST 9
56 P0.2/AD2
P1.0/CT0I 10
55 P0.3/AD3
P1.1/CT1I 11
54 P0.4/AD4
P1.2/CT2I 12
P1.3/CT3I 13
PLASTIC QUAD FLAT PACK
53 P0.5/AD5
52 P0.6/AD6
P1.4/T2 14
51 P0.7/AD7
P1.5/RT2 15
50 EA
P1.6/SCL 16
49 ALE
P1.7/SDA 17
48 PSEN
P3.0/RxD 18
47 P2.7/A15
P3.1/TxD 19
46 P2.6/A14
P3.2/INT0 20
45 P2.5/A13
NC* 21
44 NC*
NC* 22
43 NC*
P3.3/INT1 23
42 P2.4/A12
PP3.4/T0 24
41 P2.3/A11
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
* Do not connect.
IC = Internally connected (do not use).
SU00931
1998 Aug 13
4

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Philips Semiconductors
Single-chip 8-bit microcontroller
Product specification
80C552/83C552
BLOCK DIAGRAM
T0 T1
33
INT0 INT1
33
VDD
VSS
PWM0
PWM1
AVSS AVREF ADC0-7 SDA SCL
–+
AVDD 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
1998 Aug 13
5