參數資料
型號: P89V52X2FN,112
廠商: NXP Semiconductors
文件頁數: 4/57頁
文件大小: 0K
描述: IC 80C51 MCU FLASH 8K 40-DIP
產品培訓模塊: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
標準包裝: 216
系列: 89V
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: UART/USART
外圍設備: POR
輸入/輸出數: 32
程序存儲器容量: 8KB(8K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 192 x 8
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 40-DIP(0.600",15.24mm)
包裝: 管件
配用: 622-1017-ND - BOARD 44-ZIF PLCC SOCKET
622-1012-ND - BOARD FOR P89V52X2 44-TQFP
622-1008-ND - BOARD FOR LPC9103 10-HVSON
其它名稱: 568-4251-5
935282526112
P89V52X2FN
P89V52X2_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 4 May 2009
12 of 57
NXP Semiconductors
P89V52X2
80C51 with 256 B RAM, 192 B data EEPROM
6.3.2 Clock control register (CKCON)
By default, the device runs at twelve clocks per machine cycle. The device may be run in 6
clock per machine cycle mode by programming of either a non-volatile bit (FX2) or an SFR
bit (Table 5 “Clock modes”). If the FX2 non-volatile bit is programmed the device will run in
6-clock mode and the X2 SFR bit has no effect. If the FX2 bit is erased, then the clock
mode is controlled by the X2 SFR bit.
6.4 ALE control
Fig 5.
Oscillator characteristics (using the on-chip oscillator)
Fig 6.
Oscillator characteristics (external clock drive)
002aaa545
XTAL2
XTAL1
VSS
C1
C2
002aaa546
XTAL2
n.c.
XTAL1
external
oscillator
signal
VSS
Table 5.
Clock modes
FX2 clock mode bit (UCFG.1)
X2 bit (CLKCON.0)
CPU clock mode
erased
0
12-clock mode (default)
erased
1
6-clock mode
programmed
x
6-clock mode
Table 6.
AUXR - Auxiliary register (address 8EH) bit allocation
Not bit addressable; Reset value 00H
Bit
7
6
5
4
3
2
1
0
Symbol
------
-
AO
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