參數(shù)資料
型號： 935263158551
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80
封裝： 14 X 20 X 2.70 MM, PLASTIC, QFP-80
文件頁數(shù)： 62/67頁
文件大?。?/td> 516K
代理商： 935263158551
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P83C557E6,
P80C557E6
Information as of 2000-08-29
P83C557E6, P80C557E6; Single-chip 8-bit microcontroller
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Description
The P80C557E6/P83C557E6 (hereafter generically referred to as P8xC557E6) single-chip 8-bit microcontroller is
manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The P8xC557E6 has
the same instruction set as the 80C51. Three versions of the derivative exist:
l
P83C557E6 - 48 Kbytes mask programmable ROM
l
P80C557E6 - ROMless version of the P83C557E6
The P8xC557E6 contains a non-volatile 48 Kbytes mask programmable ROM (P83C557E6), a volatile 1536 × 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 IC-bus), a
"watchdog" timer, an on-chip oscillator and timing circuits. For systems that require extra capability the P8xC557E6 can be
expanded using standard TTL compatible memories and logic.
In addition, the P8xC557E6 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 0.75s and 40% in 1.5 s. Multiply and divide
instructions require 3 s.
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