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參數(shù)資料
| 型號： | MB98A51421 |
| 廠商： | Fujitsu Limited |
| 英文描述： | PCMCIA and JEIDA-Compliant 68-pin Two-piece Mask ROM card(PCMCIA和JEIDA兼容68引腳128M 掩膜 ROM卡（2個）) |
| 中文描述： | 的PCMCIA和JEIDA兼容的68引腳雙片掩模ROM卡（PCMCIA和JEIDA兼容68引腳128M的掩膜ROM的卡（2個）） |
| 文件頁數(shù)： | 16/19頁 |
| 文件大小： | 222K |
| 代理商： | MB98A51421 |
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I
AUXILIARY CAPABILITIES
1. Card Detection Pins (CD
1
, CD
2
)
These pins verify a card is correctly inserted into the system.
The two pins are internally connected to the ground; with the system side connection being pulled up to the V
CC
,
detection of the voltage of these pins allows the system to check the state of connectivity of a card (See the
diagram below).
2. Write Protection Pin (WP)
The Mask ROM Card, whose common memory is write-protected, outputs a high-level write-protection signal.
V
cc
CD
1
A
V
cc
CD
2
B
System side
Card side
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