83C453 Philips Semiconductors, 83C453 Datasheet - Page 2

• Manufacturer Part Number: 83C453
• Description: 80C51 8-bit microcontroller family 8K/256 OTP/ROM/ expanded I/O
• Manufacturer: Philips Semiconductors

1. OTP = One-Time Programmable EPROM.
Philips Semiconductors
DESCRIPTION
The Philips 8XC453 is an I/O expanded single-chip microcontroller
fabricated with Philips high-density CMOS technology. Philips
epitaxial substrate minimizes latch-up sensitivity.
The 8XC453 is a functional extension of the 87C51 microcontroller
with three additional I/O ports and four I/O control lines. The 8XC453
is available in 68-pin LCC packages. Four control lines associated
with port 6 facilitate high-speed asynchronous I/O functions.
The 87C453 includes an 8k
lines, two 16-bit timer/counters, a seven source, two priority level,
nested interrupt structure, a serial I/O port for either a full duplex
UART, I/O expansion, or multi-processor communications, and
on-chip oscillator and clock circuits.
The 87C453 has two software selectable modes of reduced activity
for further power reduction; idle mode and power-down mode. Idle
mode freezes the CPU while allowing the RAM, timers, serial port,
and interrupt system to continue functioning. Power-down mode
freezes the oscillator, causing all other chip functions to be
inoperative while maintaining the RAM contents.
ORDERING INFORMATION
NOTE:
P87C453EBAA
1998 Apr 23
80C51 8-bit microcontroller family
8K/256 OTP/ROM, expanded I/O
EPROM
1
OTP
8 EPROM, a 256
P83C453EBAA
ROM
8 RAM, 56 I/O
68–Pin Plastic Leaded Chip Carrier, 0 to +70
TEMPERATURE C AND PACKAGE
2
FEATURES
80C51 based architecture
Seven 8-bit I/O ports
Port 6 features:
– Eight data pins
– Four control pins
– Direct MPU bus interface
– ISA Bus Interface
– Parallel printer interface
– IBF and OBF interrupts
– A flag latch on host write
On the microcontroller:
– 8k
– 256
– Two 16-bit counter/timers
– Two external interrupts
External memory addressing capability
– 64k ROM and 64k RAM
Low power consumption:
– Normal operation: less than 24mA at 5V, 16MHz
– Idle mode
– Power-down mode
Reduced EMI
Full-duplex enhanced UART
– Framing error detection
– Automatic address recognition
Quick pulse programming algorithm
Two-level program security system
8 EPROM
8 RAM
83C453/87C453
Preliminary specification
3.5 to 16
FREQ.
(MHz)
PKG. DWG
SOT188-3
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