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| 型号： | ATF750LVC20JI |
| 英文描述： | Logic IC |
| 中文描述： | 逻辑IC |
| 文件页数： | 4/16页 |
| 文件大小： | 432K |
| 代理商： | ATF750LVC20JI |
ATF750C(L)
4
Bus-friendly Pin-keeper Input and I/Os
All input and I/O pins on the ATF750C(L) have programma-
ble
“
pin-keeper
”
circuits. If activated, when any pin is driven
high or low and then subsequently left floating, it will stay at
that previous high or low level.
This circuitry prevents unused input and I/O lines from
floating to intermediate voltage levels, which causes
unnecessary power consumption and system noise. The
keeper circuits eliminate the need for external pull-up resis-
tors and eliminate their DC power consumption.
Enabling or disabling of the pin-keeper circuits is controlled
by the device type chosen in the logic compiler device
selection menu. Please refer to the software compiler table
for more details. Once the pin-keeper circuits are disabled,
normal termination procedures are required for unused
inputs and I/Os.
Input Diagram
I/O Diagram
Table 1.
Software Compiler Mode Selection
Synario
WINCUPL
Pin-keeper Circuit
ATF750C
V750C
Disabled
ATF750C (PPK)
V750CPPK
Enabled
100K
V
CC
ESD
PROTECTION
CIRCUIT
INPUT
PROGRAMMABLE
OPTION
100K
V
CC
V
CC
DATA
OE
I/O
PROGRAMMABLE
OPTION
相关PDF资料 |
PDF描述 |
|---|---|
| ATF750LVC20PC | Logic IC |
| ATF750LVC20PI | Logic IC |
| ATF750LVC20SC | Logic IC |
| ATF750LVC20SI | Logic IC |
| ATF750LVC20XC | Logic IC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ATF750LVC20PC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
| ATF750LVC20PI | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
| ATF750LVC20SC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
| ATF750LVC20SI | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
| ATF750LVC20XC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
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