전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

SN74HCT257 데이터시트(PDF) 5 Page - Texas Instruments

Click here to check the latest version.
부품명 SN74HCT257
상세설명  QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
Download  9 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

SN74HCT257 데이터시트(HTML) 5 Page - Texas Instruments

  SN74HCT257 Datasheet HTML 1Page - Texas Instruments SN74HCT257 Datasheet HTML 2Page - Texas Instruments SN74HCT257 Datasheet HTML 3Page - Texas Instruments SN74HCT257 Datasheet HTML 4Page - Texas Instruments SN74HCT257 Datasheet HTML 5Page - Texas Instruments SN74HCT257 Datasheet HTML 6Page - Texas Instruments SN74HCT257 Datasheet HTML 7Page - Texas Instruments SN74HCT257 Datasheet HTML 8Page - Texas Instruments SN74HCT257 Datasheet HTML 9Page - Texas Instruments  
Zoom Inzoom in Zoom Outzoom out
 5 / 9 page
background image
SN54HCT257, SN74HCT257
QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS
WITH 3STATE OUTPUTS
SCLS072D − NOVEMBER 1988 − REVISED SEPTEMBER 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
RL
VCC
S1
S2
LOAD CIRCUIT
PARAMETER
CL
tPZH
tpd or tt
tdis
ten
tPZL
tPHZ
tPLZ
1 k
1 k
50 pF
or
150 pF
50 pF
Open
Closed
RL
S1
Closed
Open
S2
Open
Closed
Closed
Open
50 pF
or
150 pF
Open
Open
−−
NOTES: A. CL includes probe and test-fixture capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR
≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns.
D. The outputs are measured one at a time with one input transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
CL
(see Note A)
Test
Point
VOLTAGE WAVEFORMS
OUTPUT AND 3-STATE BIDIRECTIONAL I/O
PROPAGATION DELAY TIME
1.3 V
1.3 V
1.3 V
10%
10%
90%
90%
3 V
VOH
VOL
0 V
tr
tf
Input
In-Phase
Output
1.3 V
tPLH
tPHL
1.3 V
1.3 V
10%
10%
90%
90%
VOH
VOL
tr
tf
tPHL
tPLH
Out-of-
Phase
Output
1.3 V
10%
90%
3 V
≈VCC
VOL
0 V
Output
Control
(Low-Level
Enabling)
Output
Waveform 1
(See Note B)
1.3 V
tPZL
tPLZ
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES FOR 3-STATE OUTPUTS
VOH
≈0 V
1.3 V
1.3 V
tPZH
tPHZ
Output
Waveform 2
(See Note B)
Figure 1. Load Circuit and Voltage Waveforms


유사한 부품 번호 - SN74HCT257

제조업체부품명데이터시트상세설명
logo
Texas Instruments
SN74HCT257 TI-SN74HCT257 Datasheet
267Kb / 8P
[Old version datasheet]   QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/ MULTIPLEXERS WITH 3 STATE OUTPUTS
SN74HCT257 TI1-SN74HCT257 Datasheet
462Kb / 13P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74HCT257D TI-SN74HCT257D Datasheet
267Kb / 8P
[Old version datasheet]   QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/ MULTIPLEXERS WITH 3 STATE OUTPUTS
SN74HCT257D TI1-SN74HCT257D Datasheet
462Kb / 13P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74HCT257DG4 TI1-SN74HCT257DG4 Datasheet
462Kb / 13P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
More results

유사한 설명 - SN74HCT257

제조업체부품명데이터시트상세설명
logo
Texas Instruments
SN54F257 TI-SN54F257 Datasheet
74Kb / 5P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN54AHCT257 TI-SN54AHCT257 Datasheet
110Kb / 7P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN54F258 TI-SN54F258 Datasheet
75Kb / 5P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN54F258 TI1-SN54F258_12 Datasheet
79Kb / 5P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN54HC257 TI-SN54HC257 Datasheet
478Kb / 16P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN54ALS257A TI-SN54ALS257A Datasheet
139Kb / 9P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN54HC257 TI1-SN54HC257_15 Datasheet
1Mb / 21P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN54HC257 TI-SN54HC257_06 Datasheet
471Kb / 17P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74LVC257A TI-SN74LVC257A Datasheet
539Kb / 15P
[Old version datasheet]   QUADRUPLE 2 LINE TO 1 LINE DATA SELECTORS/ MULTIPLEXERS WITH 3 STATE OUTPUTS
SN54AHC257 TI-SN54AHC257 Datasheet
136Kb / 9P
[Old version datasheet]   QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
More results


Html Pages

1 2 3 4 5 6 7 8 9


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com