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参数资料
| 型号： | P87C251SP16 |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | HIGH-PERFORMANCE CHMOS MICROCONTROLLER |
| 中文描述： | 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 12/35页 |
| 文件大小： | 186K |
| 代理商： | P87C251SP16 |
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12
PRELIMINARY
8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
V
PP
I
Programming Supply Voltage
. The programming supply voltage is
applied to this pin for programming the on-chip OTPROM/EPROM.
EA#
V
SS
V
SS
1
GND
Circuit Ground
. Connect this pin to ground.
—
GND
Secondary Ground
. This ground is provided to reduce ground bounce
and improve power supply bypassing. Connection of this pin to ground
is recommended. However, when using the 8XC251SA/SB/SP/SQ as
a pin-for-pin replacement for the 8XC51BH, V
can be unconnected
without loss of compatibility. (Not available on DIP)
—
V
SS
2
GND
Secondary Ground 2
. This ground is provided to reduce ground
bounce and improve power supply bypassing. Connection of this pin to
ground is recommended. However, when using the 8XC251SB as a
pin-for-pin replacement for the 8XC51FX, V
can be unconnected
without loss of compatibility. (Not available on DIP)
—
WAIT#
I
Real-time Wait State Input.
The real-time WAIT# input is enabled by
writing a logical ‘1’ to the WCON.0 (RTWE) bit at S:A7H. During bus
cycles, the external memory system can signal ‘system ready’ to the
microcontroller in real time by controlling the WAIT# input signal on the
port 1.6 input.
P1.6/CEX3
WCLK
O
Wait Clock Output.
The real-time WCLK output is driven at port 1.7
(WCLK) by writing a logical ‘1’ to the WCON.1 (RTWCE) bit at S:A7H.
When enabled, the WCLK output produces a square wave signal with
a period of one-half the oscillator frequency.
P1.7/CEX4/
A17
WR#
O
Write
. Write signal output to external memory.
P3.6
XTAL1
I
Input to the On-chip, Inverting, Oscillator Amplifier
. To use the
internal oscillator, a crystal/resonator circuit is connected to this pin. If
an external oscillator is used, its output is connected to this pin. XTAL1
is the clock source for internal timing.
—
XTAL2
O
Output of the On-chip, Inverting, Oscillator Amplifier
. To use the
internal oscillator, a crystal/resonator circuit is connected to this pin. If
an external oscillator is used, leave XTAL2 unconnected.
—
Table 6. Signal Descriptions (Continued)
Signal
Name
Type
Description
Alternate
Function
The descriptions of A15:8/P2.7:0 and AD7:0/P0.7:0 are for the nonpage-mode chip configuration (com-
patible with 44-pin PLCC and 40-pin DIP MCS 51 microcontrollers). If the chip is configured for page-
mode operation, port 0 carries the lower address bits (A7:0), and port 2 carries the upper address bits
(A15:8) and the data (D7:0).
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相关代理商/技术参数 |
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|---|---|
| P87C251SQ16 | 功能描述:IC MCU 8-BIT 16K 16MHZ OTP 40DIP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:87C 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C，IrDA，LIN，SPI，UART/USART 外围设备:DMA，PDR，POR，PVD，PWM，温度传感器，WDT 输入/输出数:26 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN，36-VFQFPN 包装:托盘 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名称:497-9032STM32F101T8U6-ND |
| P87C31X2 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V, low power, high speed 30/33 MHz |
| P87C32X2 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V, low power, high speed 30/33 MHz |
| P87C34X2 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V, low power, high speed 30/33 MHz |
| P87C380 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Microcontrollers for monitors with DDC interface, auto-sync detection and sync proc. |
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