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参数资料
| 型号： | TS87C51RD2-MCBB |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 40 MHz, MICROCONTROLLER, PQCC44 |
| 封装： | PLASTIC, LCC-44 |
| 文件页数： | 73/74页 |
| 文件大小： | 689K |
| 代理商： | TS87C51RD2-MCBB |
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8
Rev. C - 06 March, 2001
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
Mnemonic
Pin Number
Type
Name And Function
ALE/PROG
30
33
27
O (I)
Address Latch Enable/Program Pulse: Output pulse for latching the low byte
of the address during an access to external memory. In normal operation, ALE
is emitted at a constant rate of 1/6 (1/3 in X2 mode) the oscillator frequency,
and can be used for external timing or clocking. Note that one ALE pulse is
skipped during each access to external data memory. This pin is also the program
pulse input (PROG) during EPROM programming. ALE can be disabled by
setting SFR’s AUXR.0 bit. With this bit set, ALE will be inactive during internal
fetches.
PSEN
29
32
26
O
Program Store 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/VPP
31
35
29
I
External Access Enable/Programming Supply Voltage: EA must be externally
held low to enable the device to fetch code from external program memory
locations 0000H and 3FFFH (RB) or 7FFFH (RC), or FFFFH (RD). If EA is
held high, the device executes from internal program memory unless the program
counter contains an address greater than 3FFFH (RB) or 7FFFH (RC) EA must
be held low for ROMless devices. This pin also receives the 12.75V programming
supply voltage (VPP) during EPROM programming. If security level 1 is
programmed, EA will be internally latched on Reset.
XTAL1
19
21
15
I
Crystal 1: Input to the inverting oscillator amplier and input to the internal
clock generator circuits.
XTAL2
18
20
14
O
Crystal 2: Output from the inverting oscillator amplier
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TS87C51RD2-MCBD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| TS87C51RD2-MCBR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| TS87C51RD2-MCE | 功能描述:IC MCU 8BIT 64K OTP 40MHZ 44VQFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:87C 标准包装:1,500 系列:AVR® ATtiny 核心处理器:AVR 芯体尺寸:8-位 速度:16MHz 连通性:I²C，LIN，SPI，UART/USART，USI 外围设备:欠压检测/复位，POR，PWM，温度传感器，WDT 输入/输出数:16 程序存储器容量:8KB（4K x 16） 程序存储器类型:闪存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 11x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:带卷 (TR) |
| TS87C51RD2-MCEB | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| TS87C51RD2-MCED | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
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