P80C557E4 Philips Semiconductors, P80C557E4 Datasheet - Page 2

• Manufacturer Part Number: P80C557E4
• Description: Single-chip 8-bit microcontroller
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1. FEATURES
1999 Mar 02
Single-chip 8-bit microcontroller
80C51 central processing unit
32 K
expandable externally to 64 Kbytes
ROM/FEEPROM Code protection
1024
Two standard 16-bit timer/counters
An additional 16-bit timer/counter coupled to four capture
registers and three compare registers
A 10-bit ADC with eight multiplexed analog inputs and
programmable autoscan
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
functions
Full-duplex UART compatible with the standard 80C51
On-chip watchdog timer
15 interrupt sources with 2 priority levels (2 to 6 external sources
possible)
Extended temperature range (–40 to +85 C
4.5 to 5.5 V supply voltage range
Frequency range for 80C51-family standard oscillator:
3.5 MHz to 16 MHz
PLL oscillator with 32 kHz reference and software-selectable
system clock frequency
Seconds Timer
Software enable/disable of ALE output pulse
Electromagnetic compatibility improvements
Wake-up from Power-down by external or seconds interrupt
2
C-bus serial I/O port with byte oriented master and slave
8 ROM respectively FEEPROM (Flash-EEPROM),
8 RAM, expandable externally to 64 Kbytes
)
2
P83C557E4/P80C557E4/P89C557E4
2. GENERAL DESCRIPTION
The P80C557E4/P83C557E4/P89C557E4 (hereafter generically
referred to as P8xC557E4) single-chip 8-bit microcontroller is
manufactured in an advanced CMOS process and is a derivative of
the 80C51 microcontroller family. The P8xC557E4 has the same
instruction set as the 80C51. Three versions of the derivative exist:
The P8xC557E4 contains a non-volatile 32 Kbytes mask
programmable ROM (P83C557E4) or electrically erasable
FEEPROM respectively (P89C557E4), a volatile 1024
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
oscillator and timing circuits. For systems that require extra
capability the P8xC557E4 can be expanded using standard TTL
compatible memories and logic.
In addition, the P8xC557E4 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 as well as 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 system
clock, 58% of the instructions are executed in 0.75 s and 40% in
1.5 s. Multiply and divide instructions require 3 s.
P83C557E4 — 32 Kbytes mask programmable ROM
P80C557E4 — ROMless version of the P83C557E4
P89C557E4 — 32 Kbytes FEEPROM (Flash-EEPROM)
2
C-bus), a “watchdog” timer, an on-chip
Product specification
8 read/write