MC74HC251A:8-Input Multiplexer (3-state)
The MC54/74HC251 is identical in pinout to the LS251. The deviceinputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.This device selects one of the eight binary Data Inputs, as determined by the Address Inputs. The Output Enable pin must be a low level for the selected data to appear at the outputs. If Output Enable is high, both the Y and the Y outputs are in the high impedance state. This 3 state feature allows the HC251 to be used in bus oriented systems. The HC251 is similar in function to the HC251 which does not have 3 state outputs.
特性
- Output Drive Capability: 10 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2 to 6 V
- Low Input Current: 1 A
- High Noise Immunity Characteristic of CMOS Devices
- These are PbFree Devices
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封装图 MARKING DIAGRAM
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订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| MC74HC251ADG |
Active |
|
8-Input Multiplexer (3-state) |
SOIC-16 |
751B-05 |
1 |
Tube |
48 |
$0.2723 |
| MC74HC251ADR2G |
Active |
|
8-Input Multiplexer (3-state) |
SOIC-16 |
751B-05 |
1 |
Tape and Reel |
2500 |
$0.2723 |
| MC74HC251ADTG |
Active |
|
8-Input Multiplexer (3-state) |
TSSOP-16 |
948F-01 |
1 |
Tube |
96 |
$0.2723 |
| MC74HC251ADTR2G |
Active |
|
8-Input Multiplexer (3-state) |
TSSOP-16 |
948F-01 |
1 |
Tape and Reel |
2500 |
$0.2723 |
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