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부품번호 | MC74AC257 기능 |
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기능 | QUAD 2-INPUT MULTIPLEXER | ||
제조업체 | ON Semiconductor | ||
로고 | |||
전체 9 페이지수
MC74AC257, MC74ACT257
Quad 2-Input Multiplexer
with 3-State Outputs
The MC74AC257/74ACT257 is a quad 2−input multiplexer with
3−state outputs. Four bits of data from two sources can be selected
using a Common Data Select input. The four outputs present the
selected data in true (noninverted) form. The outputs may be switched
to a high impedance state by placing a logic HIGH on the common
Output Enable (OE) input, allowing the outputs to interface directly
with bus−oriented systems.
• Multiplexer Expansion by Tying Outputs Together
• Noninverting 3−State Outputs
• Outputs Source/Sink 24 mA
• ′ACT257 Has TTL Compatible Inputs
• These are Pb−Free Devices
VCC OE I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
12345678
S I0a I1a Za I0b I1b Zb GND
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
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16
1
16
1
MARKING
DIAGRAMS
16
SOIC−16
D SUFFIX
CASE 751B
1
xxx257G
AWLYWW
TSSOP−16
DT SUFFIX
CASE 948F
16
xxx
257
ALYWG
G
1
xxx = AC or ACT
A = Assembly Location
WL or L = Wafer Lot
Y = Year
WW or W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
March, 2015 − Rev. 8
1
Publication Order Number:
MC74AC257/D
MC74AC257, MC74ACT257
DC CHARACTERISTICS
Symbol
Parameter
VIH Minimum High Level
Input Voltage
VIL Maximum Low Level
Input Voltage
VOH Minimum High Level
Output Voltage
74AC
74AC
VCC
(V)
TA = +25°C
TA =
−40°C to
+85°C
Typ Guaranteed Limits
3.0 1.5 2.1
4.5 2.25 3.15
5.5 2.75 3.85
2.1
3.15
3.85
3.0 1.5 0.9
4.5 2.25 1.35
5.5 2.75 1.65
0.9
1.35
1.65
3.0 2.99 2.9
4.5 4.49 4.4
5.5 5.49 5.4
2.9
4.4
5.4
Unit
V
V
V
VOL Maximum Low Level
Output Voltage
3.0 − 2.56
4.5 − 3.86
5.5 − 4.86
3.0 0.002 0.1
4.5 0.001 0.1
5.5 0.001 0.1
2.46
3.76
4.76
0.1
0.1
0.1
V
V
3.0 − 0.36
4.5 − 0.36
5.5 − 0.36
0.44
0.44
0.44
V
IIN Maximum Input
Leakage Current
5.5 − ±0.1
±1.0
mA
IOZ Maximum
3−State
Current
5.5 − ±0.5
±5.0
mA
IOLD
IOHD
ICC
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5 − −
5.5 − −
5.5 − 8.0
75
−75
80
mA
mA
mA
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
NOTE: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC.
Conditions
VOUT = 0.1 V
or VCC − 0.1 V
VOUT = 0.1 V
or VCC − 0.1 V
IOUT = −50 mA
*VIN = VIL or VIH
−12 mA
IOH −24 mA
−24 mA
IOUT = 50 mA
*VIN = VIL or VIH
12 mA
IOL 24 mA
24 mA
VI = VCC, GND
VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
VOLD = 1.65 V Max
VOHD = 3.85 V Min
VIN = VCC or GND
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4
4페이지 MC74AC257, MC74ACT257
AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74ACT
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
Min Typ Max
TA = −40°C
to +85°C
CL = 50 pF
Min Max
Unit
Fig.
No.
tPLH
Propagation Delay
In to Zn
tPHL
Propagation Delay
In to Zn
tPLH
Propagation Delay
S to Zn
tPHL
tPZH
Propagation Delay
S to Zn
Output Enable Time
tPZL Output Enable Time
tPHZ
Output Disable Time
tPLZ Output Disable Time
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
5.0 1.5 5.0 7.0 1.0 7.5
5.0 2.0 6.0 7.5 1.5 8.5
5.0 2.0 7.0 9.5 1.5 10.5
5.0 2.5 7.0 10.5 2.0 11.5
5.0 2.0 6.0 8.0 1.5 9.0
5.0 2.0 6.0 8.0 1.5 9.0
5.0 2.5 6.5 9.0 1.5 10.0
5.0 2.0 6.0 7.5 1.5 8.5
ns
ns
ns
ns
ns
ns
ns
ns
3−6
3−6
3−6
3−6
3−7
3−8
3−7
3−8
CAPACITANCE
Symbol
Parameter
CIN Input Capacitance
CPD Power Dissipation Capacitance
Value
Typ
4.5
50
Unit
pF
pF
Test Conditions
VCC = 5.0 V
VCC = 5.0 V
ORDERING INFORMATION
Device Order Number
Package
Shipping†
MC74AC257DG
SOIC−16
(Pb−Free)
48 Units / Rail
MC74AC257DR2G
SOIC−16
(Pb−Free)
2500 / Tape & Reel
MC74AC257DTR2G
TSSOP−16
(Pb−Free)
2500 / Tape & Reel
MC74ACT257DG
SOIC−16
(Pb−Free)
48 Units / Rail
MC74ACT257DR2G
SOIC−16
(Pb−Free)
2500 / Tape & Reel
MC74ACT257DTR2G
TSSOP−16
(Pb−Free)
2500 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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7
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
MC74AC251 | 8-Input Multiplexer | Motorola Semiconductors |
MC74AC253 | DUAL 4-INPUT MULTIPLEXER | ON Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |