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參數(shù)資料
| 型號： | TC74VHC257FK |
| 廠商： | Toshiba Corporation |
| 英文描述： | Quad 2-Channel Multiplexer (3-state) |
| 中文描述： | 四2通道多路復用器（3態(tài)） |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 271K |
| 代理商： | TC74VHC257FK |
TC74VHC257F/FN/FT/FK
2007-10-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74VHC257F,TC74VHC257FN,TC74VHC257FT,TC74VHC257FK
Quad 2-Channel Multiplexer (3-state)
The TC74VHC257 is an advanced high speed CMOS
MULTIPLEXER fabricated with silicon gate C
2
MOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
It is composed of four independent 2-channel multiplexers with
common SELECT and
OUTPUT
If
OE
is set low, the outputs are held in a high-impedance
state. When SELECT is set low, “A” data inputs are enabled.
Conversely, when SELECT is high, “B” data inputs are
enabled.
An input protection circuit ensures that 0 to 5.5 V can be
applied to the input pins without regard to the supply voltage.
This device can be used to interface 5 V to 3 V systems and two
supply systems such as battery back up. This circuit prevents
device destruction due to mismatched supply and input voltages.
Features
ENABLE
(
OE
).
High speed: t
pd
=
3.6 ns (typ.) at V
CC
=
5 V
Low power dissipation: I
CC
=
4
μ
A (max) at Ta
=
25°C
High noise immunity: V
NIH
=
V
NIL
=
28% V
CC
(min)
Power down protection is provided on all inputs.
Balanced propagation delays: t
pLH
～
t
pHL
Wide operating voltage range: V
CC (opr)
=
2 to 5.5 V
Low noise: V
OLP
=
0.8 V (max)
Pin and function compatible with 74ALS257
Weight
SOP16-P-300-1.27A
SOL16-P-150-1.27
TSSOP16-P-0044-0.65A
VSSOP16-P-0030-0.50
: 0.18 g (typ.)
: 0.13 g (typ.)
: 0.06 g (typ.)
: 0.02 g (typ.)
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74VHC257F
TC74VHC257FN
TC74VHC257FT
TC74VHC257FK
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TC74VHC257FN | 制造商:Toshiba America Electronic Components 功能描述:MLTPLXR SGL CMOS 3-ST 8-IN 16PIN SOL - Bulk |
| TC74VHC257FT(EL) | 制造商:Toshiba America Electronic Components 功能描述:IC,Logic,74VHC Series TSSOP16,QUAD 2-CH |
| TC74VHC257FT(SPL) | 制造商:Toshiba 功能描述:74VHC Quad 2-Channel Multiplexer (3-State) 16TSSOP Cut Tape |
| TC74VHC257FTEL | 功能描述:編碼器、解碼器、復用器和解復用器 Quad 2-Ch Multi 3-State 3.6ns 5V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)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 |
| TC74VHC257FT-EL | 制造商:Toshiba America Electronic Components 功能描述:MLTPLXR SGL CMOS 3-ST 8-IN 16TSSOP - Tape and Reel |
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