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參數資料
| 型號： | 74VHCT157AMTR |
| 廠商： | 意法半導體 |
| 英文描述： | Octal Bus Transceivers With 3-State Outputs 20-TSSOP -40 to 85 |
| 中文描述： | 四2通道多 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 64K |
| 代理商： | 74VHCT157AMTR |
74VHCT157A
QUAD 2 CHANNEL MULTIPLEXER
PRELIMINARY DATA
March 2000
I
HIGHSPEED:t
PD
=6.2ns(TYP.)atV
CC
= 5V
I
LOWPOWERDISSIPATION:
I
CC
=4
μ
A(MAX.) at T
A
=25
o
C
I
COMPATIBLEWITH TTL OUTPUTS:
V
IH
=2V (MIN),V
IL
= 0.8V(MAX)
I
POWERDOWN PROTECTIONON INPUTS&
OUTPUTS
I
SYMMETRICALOUTPUTIMPEDANCE:
|I
OH
| = I
OL
= 8 mA(MIN)
I
BALANCEDPROPAGATIONDELAYS:
t
PLH
t
PHL
I
OPERATINGVOLTAGERANGE:
V
CC
(OPR)= 4.5Vto 5.5V
I
PINANDFUNCTION COMPATIBLEWITH
74SERIES157
I
IMPROVEDLATCH-UP IMMUNITY
I
LOWNOISE:V
OLP
= 0.8V(Max.)
DESCRIPTION
The 74VHCT157A is an high-speed CMOS
QUAD 2-CHANNEL MULTIPLEXER fabricated
with sub-micron silicon gate and double-layer
metalwiring C
2
MOStechnology.
It consists of four 2-input digital multiplexers with
common select and strobe inputs. It
is a
non-inverting multiplexer. When the STROBE
input is held high, selection of data is inhibited
and all the outputs become low. The SELECT
decoding determines whether the A or B inputs
get routed to theircorresponding Youtputs.
Power down protection is provided on all inputs
and outputs and 0 to 7V can be accepted on
inputs with no regard to the supply voltage. This
device can be used to interface 5V to 3V.All
inputs and outputs are equipped with protection
circuits against static discharge, giving them 2KV
ESD immunity and transientexcess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
SOP
TSSOP
ORDER CODES
TUBE
74VHCT157AM
PACKAGE
SOP
TSSOP
T & R
74VHCT157AMTR
74VHCT157ATTR
1/9
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| 74VHCT16244 | 16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED) |
| 74VHCT16244A | 16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED) |
| 74VHCT16244ATTR | 16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED) |
| 74VHCT16373ATTR | 16-BIT D-TYPE LATCH WITH 3-STATE OUTPUTS NON INVERTING |
| 74VHCT174A | HEX D-TYPE FLIP FLOP WITH CLEAR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 74VHCT16240ATTR | 功能描述:緩沖器和線路驅動器 16-Bit Bus Buffer RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74VHCT16244ATTR | 功能描述:緩沖器和線路驅動器 16-Bit Bus Buffer RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74VHCT16245ATTR | 功能描述:總線收發器 16-Bit Bus Transcvr RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| 74VHCT16373ATTR | 功能描述:閉鎖 16-Bit "D" Latch RoHS:否 制造商:Micrel 電路數量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
| 74VHCT16374ATTR | 功能描述:觸發器 16-Bit "D" Flip-Flop RoHS:否 制造商:Texas Instruments 電路數量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
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