参数资料
型号: AT89C51RB2-SLSUM
厂商: Atmel
文件页数: 24/127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
12
AT89C51RB2/RC2
4180E–8051–10/06
PSEN
29
32
26
O
Program Strobe Enable: The read strobe to external program memory. When
executing code from the external program memory, PSEN is activated twice each
machine cycle, except that two PSEN activations are skipped during each access to
external data memory. PSEN is not activated during fetches from internal program
memory.
EA
31
35
29
I
External Access Enable: EA must be externally held low to enable the device to
fetch code from external program memory locations 0000H to FFFFH (RD). If
security level 1 is programmed, EA will be internally latched on Reset.
Table 12. Pin Description for 40 - 44 Pin Packages (Continued)
Mnemonic
Pin Number
Type
Name and Function
DIL
LCC
VQFP44 1.4
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