Philips Semiconductors Product data
80C552/83C552
Single-chip 8-bit microcontroller with 10-bit A/D,
capture/compare timer, high-speed outputs, PWM
2
2002 Sep 03 853-1467 28849
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—8 kbytes mask programmable ROM
• 80C552—ROMless version of the 83C552
• 87C552—8 kbytes 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 I
2
C-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.
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 16 MHz (24 MHz)
crystal, 58% of the instructions are executed in 0.75 µs (0.5 µs) and
40% in 1.5 µs (1 µs). Multiply and divide instructions require 3 µs
(2 µs).
FEATURES
• 80C51 central processing unit
• 8k × 8 ROM expandable externally to 64 kbytes
• 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 64 kbytes
• 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
• I
2
C-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 16 MHz
– 3.5 to 24 MHz (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)
LOGIC SYMBOL
SU01691
PORT 5
PORT 4
ADC0-7
CMT0
CMT1
CMSR0-5
RST
EW
XTAL1
XTAL2
EA
ALE
PSEN
AVref+
AVref–
STADC
PWM0
PWM1
PORT 0
LOW ORDER
ADDRESS AND
DATA BUS
PORT 1PORT 2PORT 3
CT0I
CT1I
CT2I
CT3I
T2
RT2
SCL
SDA
RxD/DATA
TxD/CLOCK
INT0
INT1
T0
T1
WR
RD
V
SS
V
DD
AV
SS
AV
DD
HIGH ORDER
ADDRESS AND
DATA BUS
