参数资料
型号: AT89C51ID2-SLSUM
厂商: Atmel
文件页数: 71/157页
文件大小: 0K
描述: IC 8051 MCU FLASH 64K 44PLCC
产品培训模块: MCU Product Line Introduction
标准包装: 972
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 60MHz
连通性: I²C,SPI,UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 34
程序存储器容量: 64KB(64K x 8)
程序存储器类型: 闪存
EEPROM 大小: 2K x 8
RAM 容量: 2K 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
配用: AT89OCD-01-ND - USB EMULATOR FOR AT8XC51 MCU
20
AT89C51ID2
4289C–8051–11/05
–F
CLK CPU and FCLK PERIPH, for CKRL≠0xFF
In X2 Mode:
In X1 Mode:
Timer 0: Clock Inputs
Figure 1. Timer 0: Clock Inputs
Note:
The SCLKT0 bit in OSCCON register allows to select Timer 0 Subsidiary clock.
SCLKT0 = 0: Timer 0 uses the standard T0 pin as clock input (Standard mode)
SCLKT0 = 1: Timer 0 uses the special Sub Clock as clock input, this feature can be use
as periodic interrupt for time clock.
F
CPU
F
=
CLKPERIPH
F
OSCA
2255
CKRL
()
×
----------------------------------------------
=
F
CPU
F
=
CLKPERIPH
F
OSCA
4255
CKRL
()
×
----------------------------------------------
=
SCLKT0
1
0
FCLK PERIPH
:6
T0 pin
C/T
1
0
OSCCON
TMOD
Gate
INT0
TR0
Timer 0
Control
Sub Clock
(AT 8xC51Ix2 only)
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