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參數資料
| 型號： | W78E51 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MTP Monitor Microcontroller(多次可編程的8位的監視微控制器) |
| 中文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁數： | 4/19頁 |
| 文件大小： | 283K |
| 代理商： | W78E51 |
W78E51
- 4 -
RST
MODE
Normal
DESCRIPTION
RST, Reset, Input, active high.
This pin resets the processor. It must be kept high for at least two machine cycles in
order to be recognized by the processor.
Flash mode configuration pin, Input, active high.
RST is used to configure the flash operations. For details, see
Flash Operations.
Flash
ALE
MODE
Normal
DESCRIPTION
ALE, Address Latch Enable, Output, active high.
ALE is used to enable the address latch that separates the address from the data on
Port 0. ALE runs at 1/6th of the oscillator frequency. A single ALE pulse is skipped
during external data memory accesses. ALE goes to a high impedance state with a
weak pull-up during reset state.
Flash mode configuration pin, Input, active low.
ALE is used to configure the flash operations. For details, see
Flash Operations.
Flash
PSEN
MODE
Normal
DESCRIPTION
PSEN
Program Store Enable, Output, active low.
This pin enables the external ROM onto the Port 0 address/data bus during fetch and
MOVC operations. PSEN goes to a high impedance state with a weak pull-up during reset
state.
Flash mode configuration pin, Input, active high.
Flash
PSEN is used to configure the flash operations. For details, see
Flash Operations.
XTAL1
MODE
Normal
DESCRIPTION
Crystal 1. This is the crystal oscillator input. This pin may be driven by an external
clock.
Connect to V
SS
.
Flash
XTAL2
MODE
Normal
Flash
DESCRIPTION
Crystal 2. This is the crystal oscillator output. It is the inversion of XTAL1.
No use on this mode.
V
SS
, V
CC
Power Supplies. These are the chip ground and positive supplies.
相關PDF資料 |
PDF描述 |
|---|---|
| W78E52 | 8-BIT MTP Monitor Microcontroller(多次可編程的8位的監視微控制器) |
| W78E56B | 8-BIT Microcontroller(8位的微控制器) |
| W78E516BP-24 | 8-BIT MICROCONTROLLER |
| W78E516BP-40 | 8-BIT MICROCONTROLLER |
| W78E516 | 8-BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W78E51-16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78E51-24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78E51-33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78E51-40 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78E516 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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