參數資料
| 型號： | 74VHC157N |
| 廠商： | Fairchild Semiconductor |
| 文件頁數： | 1/10頁 |
| 文件大小： | 0K |
| 描述： | MULTIPLEXER QUAD 2IN 16DIP |
| 標準包裝： | 25 |
| 系列： | 74VHC |
| 類型： | 多路復用器 |
| 電路： | 4 x 2:1 |
| 獨立電路： | 1 |
| 輸出電流高，低： | 8mA，8mA |
| 電壓電源： | 單電源 |
| 電源電壓： | 2 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 16-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 16-DIP |
| 包裝： | 管件 |
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74VHC157
Quad
2-Input
Multiple
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e
r
May 2007
1992 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74VHC157 Rev. 1.2
74VHC157
Quad 2-Input Multiplexer
Features
■ High Speed: tPD = 4.1ns (Typ.) at VCC = 5V
■ Low power dissipation: ICC = 4A (Max.) at TA = 25°C
■ High noise immunity: VNIH = VNIL = 28% VCC (Min.)
■ Power down protection is provided on all inputs
■ Low noise: VOLP = 0.8V (Max.)
■ Pin and function compatible with 74HC157
General Description
The VHC157 is an advanced high speed CMOS Quad
2-Channel Multiplexer fabricated with silicon gate CMOS
technology. It achieves the high speed operation similar
to equivalent Bipolar Schottky TTL while maintaining the
CMOS low power dissipation.
It consists of four 2-input digital multiplexers with com-
mon select and enable inputs. When the ENABLE input
is held “H” level, selection of data is inhibited and all the
outputs become “L” level. The SELECT decoding deter-
mines whether the I0x or I1x inputs get routed to their cor-
responding outputs.
An Input protection circuit ensures that 0V to 7V can be
applied to the input pins without regard to the supply
voltage. This device can be used to interface 5V to 3V
systems and on two supply systems such as battery
back up. This circuit prevents device destruction due to
mismatched supply and input voltages.
Ordering Information
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the
ordering number.
Connection Diagram
Pin Description
Order Number
Package
Number
Package Description
74VHC157M
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150”
Narrow
74VHC157SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC157MTC
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,
4.4mm Wide
Pin Names
Description
I0a–I0d
Source 0 Data Inputs
I1a–I1d
Source 1 Data Inputs
E
Enable Input
S
Select Input
Za–Zd
Outputs
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 74VHC157N_Q | 功能描述:編碼器、解碼器、復用器和解復用器 Qd 2-Inp Multiplexer RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74VHC157NX | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Quad 2-Input Multiplexer |
| 74VHC157SJ | 功能描述:編碼器、解碼器、復用器和解復用器 Qd 2-Inp Multiplexer RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74VHC157SJ_Q | 功能描述:編碼器、解碼器、復用器和解復用器 Qd 2-Inp Multiplexer RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| 74VHC157SJX | 功能描述:編碼器、解碼器、復用器和解復用器 Qd 2-Inp Multiplexer RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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