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參數(shù)資料
| 型號(hào)： | W78C31 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 8-BIT EMULATION MICROCONTROLLER |
| 中文描述： | 8位單片機(jī)仿真 |
| 文件頁數(shù)： | 6/28頁 |
| 文件大小： | 272K |
| 代理商： | W78C31 |
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W78958B
- 6 -
P3.7
P3.0 Port 3, Bits 7
0
TYPE
MODE
DESCRIPTION
Advanced
Normal
Functions are the same as those in the W78C32.
Emulation
Frozen in the original state.
Standard
Normal
Functions are the same as those in the W78C52.
Emulation
Frozen in the original state.
DP4.7
DP4.0 Address/Data Bus, Bits 7
0
TYPE
MODE
DESCRIPTION
Advanced
Normal
DP4 provides a multiplexed low-byte address/data bus during
accesses to external memory.
Emulation
When ESEL is held at "L" level, DP4 is the data input/output of the
SFR/PC and internal RAM. When ESEL is held at "H" level, DP4 is
in high impedance state.
Standard
Normal
Pins ROMS1 and ROMS0 determine functions of DP4. For details,
see Table D2.
Emulation
Same as in the advanced type.
ROMS1
ROMS0
FUNCTIONS OF DP4
0
0
Provides a multiplexed low-byte address/data bus during accesses to
external 4 KB EPROM.
0
1
Provides a multiplexed low-byte address/data bus during accesses to
external 8 KB EPROM.
1
0
Provides a multiplexed low-byte address/data bus during accesses to
external 16 KB EPROM.
1
1
Provides a multiplexed low-byte address/data bus during accesses to
external 32 KB EPROM.
Table D2.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78C32 | 8-BIT EMULATION MICROCONTROLLER |
| W78C438 | 8-BIT EMULATION MICROCONTROLLER |
| W78C51 | Subminiature PCB fuse, solderable into PCBs; Tape and reel available; Voltage Rating: 125V; Current Rating: 0.315A; Characteristic: Time Lag |
| W78C52 | 8-BIT EMULATION MICROCONTROLLER |
| W78C516 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78C31B-16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78C31B-24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78C31B-33 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78C31B-40 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| W78C31BF-16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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