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參數(shù)資料
| 型號： | 74F257A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Quad 2-Input Multiplexer with TRI-STATE Outputs(帶三態(tài)輸出的四2輸入多路復(fù)用器) |
| 中文描述： | 四2輸入多路復(fù)用器與三態(tài)輸出（帶三態(tài)輸出的四2輸入多路復(fù)用器） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 157K |
| 代理商： | 74F257A |
TL/F/9507
5
November 1994
54F/74F257A
Quad 2-Input Multiplexer with TRI-STATE
é
Outputs
General Description
The ’F257A is a quad 2-input multiplexer with TRI-STATE
outputs. Four bits of data from two sources can be selected
using a Common Data Select input. The four outputs pres-
ent the selected data in true (non-inverted) form. The out-
puts may be switched to a high impedance state with a
HIGH on the common Output Enable (OE) input, allowing
the outputs to interface directly with bus-oriented systems.
Features
Y
Multiplexer expansion by tying outputs together
Y
Non-inverting TRI-STATE outputs
Y
Input clamp diodes limit high-speed termination effects
Y
Guaranteed 4000V minimum ESD protection
Commercial
Military
Package
Number
Package Description
74F257APC
N16E
16-Lead (0.300
×
Wide) Molded Dual-In-Line
54F257ADM (Note 2)
J16A
16-Lead Ceramic Dual-In-Line
74F257ASC (Note 1)
M16A
16-Lead (0.150
×
Wide) Molded Small Outline, JEDEC
16-Lead (0.300
×
Wide) Molded Small Outline, EIAJ
74F257ASJ (Note 1)
M16D
54F257AFM (Note 2)
W16A
16-Lead Cerpack
54F257ALL (Note 2)
E20A
20-Lead Ceramic Leadless Chip Carrier, Type C
Note 1:
Devices also available in 13
×
reel. Use suffix
e
SCX and SJX.
Note 2:
Military grade device with environmental and burn-in processing. Use suffix
e
DMQB, FMQB and LMQB.
Logic Symbols
Connection Diagrams
TL/F/9507–3
IEEE/IEC
TL/F/9507–5
Pin Assignment
for DIP, SOIC and Flatpak
TL/F/9507–1
Pin Assignment
for LCC
TL/F/9507–2
TRI-STATE
é
is a registered trademark of National Semiconductor Corporation.
C
1995 National Semiconductor Corporation
RRD-B30M75/Printed in U. S. A.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74F257APC | Quad 2-Input Multiplexer with TRI-STATE Outputs |
| 74F257ASJ | Quad 2-Input Multiplexer with TRI-STATE Outputs |
| 74F257ASC | Quad 2-Input Multiplexer with TRI-STATE Outputs |
| 74F257ASC | Quad 2-Input Multiplexer with 3-STATE Outputs |
| 74F258A | Quad 2-Input Multiplexer with TRI-STATE Outputs(帶三態(tài)輸出的四2輸入多路復(fù)用器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F257A_WJH3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74F257AD | 制造商:NXP Semiconductors 功能描述: 制造商:Fairchild Semiconductor Corporation 功能描述:74F257AD 制造商:North American Philips Discrete Products Div 功能描述:74F257AD 制造商:NXP Semiconductors 功能描述:74F257AD 制造商:NXP Semiconductors 功能描述:LOGIC MUX, QUAD, 2-INPUT, F-TTL, 16 Pin, Plastic, SOP 制造商:SIG/87'S 功能描述:74F257AD |
| 74F257ADC | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74F257AN | 制造商:NXP Semiconductors 功能描述: |
| 74F257APC | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Qd 2-Inp Multiplexer 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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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