数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

HC257 数据表(PDF) 5 Page - STMicroelectronics

部件名 HC257
功能描述  QUAD 2 CHANNEL MULTIPLEXER 3-STATE
PDF  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

HC257 数据表(HTML) 5 Page - STMicroelectronics

  HC257 Datasheet HTML 1Page - STMicroelectronics HC257 Datasheet HTML 2Page - STMicroelectronics HC257 Datasheet HTML 3Page - STMicroelectronics HC257 Datasheet HTML 4Page - STMicroelectronics HC257 Datasheet HTML 5Page - STMicroelectronics HC257 Datasheet HTML 6Page - STMicroelectronics HC257 Datasheet HTML 7Page - STMicroelectronics HC257 Datasheet HTML 8Page - STMicroelectronics HC257 Datasheet HTML 9Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 14 page
background image
74VHC257
5/14
Table 7: AC Electrical Characteristics (Input tr = tf = 3ns)
(*) Voltage range is 3.3V
± 0.3V
(**) Voltage range is 5.0V
± 0.5V
Table 8: Capacitive Characteristics
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/4 (per
channel)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
CL
(pF)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tPLH
tPHL
Propagation Delay
Time A, B to Y
3.3(*)
15
5.8
9.3
1.0
11.0
1.0
11.0
ns
3.3(*)
50
8.3
12.8
1.0
14.5
1.0
14.5
5.0(**)
15
3.6
5.9
1.0
7.0
1.0
7.0
5.0(**)
50
5.1
7.9
1.0
9.0
1.0
9.0
tPLH
tPHL
Propagation Delay
Time
SELECT to Y
3.3(*)
15
7.0
11.0
1.0
13.0
1.0
13.0
ns
3.3(*)
50
9.5
14.5
1.0
16.5
1.0
16.5
5.0(**)
15
4.0
6.8
1.0
8.0
1.0
8.0
5.0(**)
50
5.5
8.8
1.0
10.0
1.0
10.0
tPZL
tPZH
Output Enable
Time
3.3(*)
15
RL = 1KΩ
6.7
10.5
1.0
12.5
1.0
12.5
ns
3.3(*)
50
RL = 1KΩ
9.2
14.0
1.0
16.0
1.0
16.0
5.0(**)
15
RL = 1KΩ
3.6
6.8
1.0
8.0
1.0
8.0
5.0(**)
50
RL = 1KΩ
5.1
8.8
1.0
10.0
1.0
10.0
tPLZ
tPHZ
Output Disable
Time
3.3(*)
50
RL = 1KΩ
8.6
12.0
1.0
13.5
1.0
13.5
ns
5.0(**)
50
RL = 1KΩ
5.7
7.9
1.0
9.0
1.0
9.0
Symbol
Parameter
Test Condition
Value
Unit
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
610
10
10
pF
COUT
Output
Capacitance
8pF
CPD
Power Dissipation
Capacitance
(note 1)
18
pF



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
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