参数资料
型号: P89V52X2FA,512
厂商: NXP Semiconductors
文件页数: 4/57页
文件大小: 0K
描述: IC 80C51 MCU FLASH 8K 44-PLCC
产品培训模块: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
标准包装: 1,300
系列: 89V
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: UART/USART
外围设备: POR
输入/输出数: 32
程序存储器容量: 8KB(8K x 8)
程序存储器类型: 闪存
EEPROM 大小: 192 x 8
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
产品目录页面: 706 (CN2011-ZH PDF)
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
622-1002-ND - USB IN-CIRCUIT PROG LPC9XX
其它名称: 568-4249-5
935282528512
P89V52X2FA
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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