參數(shù)資料
型號: P87CL52X2
廠商: NXP Semiconductors N.V.
英文描述: 80C51 8-bit microcontroller family
中文描述: 80C51的8位單片機系列
文件頁數(shù): 2/47頁
文件大?。?/td> 301K
代理商: P87CL52X2
Philips Semiconductors
Product data
P87CL52X2/54X2
80C51 8-bit microcontroller family
8K/16K OTP 256 bytes RAM ROMless low voltage
(1.8 V to 3.3 V), low power, high speed (33 MHz)
2
2003 May 14
853-2427 29875
DESCRIPTION
The Philips P87CL5xX2 is a high-performance static 80C51 design
fabricated with Philips high-density CMOS technology with operation
from 1.8 V to 3.3 V.
The P87CL5xX2 ROMless devices contain a 256
×
8 RAM, 32 I/O
lines, three 16-bit counter/timers, a six-source, four-priority level
nested interrupt structure, a serial I/O port for either multi-processor
communications, I/O expansion or full duplex UART, and on-chip
oscillator and clock circuits.
In addition, the device is a low power static design which offers a
wide range of operating frequencies down to zero. Two software
selectable modes of power reduction — idle mode and power-down
mode — are available. The idle mode freezes the CPU while
allowing the RAM, time rs, serial port, 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. Since the design is static, the clock can be stopped
without loss of user data and then the execution resumed from the
point the clock was stopped.
FEATURES
8051 Central Processing Unit
TSSOP or LQFP packages
256
×
8 RAM
Three 16-bit counter/timers
Boolean processor
Full static operation
Low voltage (1.8 V to 3.3 V@ 12 MHz) operation (12-clock
mode)
Memory addressing capability
64k ROM and 64k RAM
Power control modes:
Clock can be stopped and resumed
Idle mode
Power-down mode
CMOS and TTL compatible
Two speed ranges at V
CC
= 3.3 V
0 to 16 MHz (6-clock mode)
0 to 33 MHz (12-clock mode)
Dual Data Pointers
Four priority interrupt levels
Six interrupt sources
Four 8-bit I/O ports
Full–duplex enhanced UART
Framing error detection
Automatic address recognition
Programmable clock out
Asynchronous port reset
Low EMI (inhibit ALE)
Wake-up from Power Down by an external interrupt
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