参数资料
型号: AT89C51RB2-SLSUM
厂商: Atmel
文件页数: 21/127页
文件大小: 0K
描述: IC 8051 MCU FLASH 16K 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: SPI,UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 32
程序存储器容量: 16KB(16K x 8)
程序存储器类型: 闪存
RAM 容量: 1.25K 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
AT89STK-11-ND - KIT STARTER FOR AT89C51RX2
117
AT89C51RB2/RC2
4180E–8051–10/06
Shift Register Timing
Waveforms
External Clock Drive
Waveforms
AC Testing Input/Output
Waveforms
AC inputs during testing are driven at VCC - 0.5 for a logic “1” and 0.45V for a logic “0”.
Timing measurement are made at VIH min for a logic “1” and VIL max for a logic “0”.
Float Waveforms
For timing purposes as port pin is no longer floating when a 100 mV change from load
voltage occurs and begins to float when a 100 mV change from the loaded VOH/VOL level
occurs. IOL/IOH ≥ ± 20mA.
Clock Waveforms
Valid in normal clock mode. In X2 mode XTAL2 must be changed to XTAL2/2.
INPUT DATA
VALID
01
2345
6
8
7
ALE
CLOCK
OUTPUT DATA
WRITE to SBUF
CLEAR RI
T
XLXL
T
QVXH
T
XHQX
T
XHDV
T
XHDX
SET TI
SET RI
INSTRUCTION
01
2345
67
VALID
VCC-0.5V
0.45V
0.7V
CC
0.2VCC-0.1
T
CHCL
T
CLCX
T
CLCL
T
CLCH
T
CHCX
INPUT/OUTPUT
0.2 VCC + 0.9
0.2 VCC - 0.1
VCC -0.5V
0.45 V
FLOAT
VOH - 0.1 V
VOL + 0.1 V
V
LOAD
V
LOAD + 0.1 V
VLOAD - 0.1 V
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