Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

M74HC643 Datasheet(PDF) 5 Page - STMicroelectronics

Part No. M74HC643
Description  OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS INVERTING/NON INVERTING
Download  11 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo 

M74HC643 Datasheet(HTML) 5 Page - STMicroelectronics

 
Zoom Inzoom in Zoom Outzoom out
 5 / 11 page
background image
M74HC643
5/11
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
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/8 (per circuit)
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.
tTLH tTHL Output Transition
Time
2.0
50
25
60
75
90
ns
4.5
7
121918
6.0
6
101315
tPLH tPHL Propagation Delay
Time
2.0
50
33
90
115
135
ns
4.5
12
18
23
27
6.0
10
15
20
23
2.0
150
48
120
150
180
ns
4.5
16
24
30
36
6.0
14
20
26
31
tPZL tPZH High Impedance
Output Enable
Time
2.0
50
RL = 1 K
48
150
190
225
ns
4.5
16
30
38
45
6.0
14
26
32
38
2.0
150
RL = 1 K
63
180
225
270
ns
4.5
21
36
45
54
6.0
18
31
38
46
tPLZ tPHZ High Impedance
Output Disable
Time
2.0
50
RL = 1 K
37
150
190
225
ns
4.5
17
30
38
45
6.0
15
26
32
38
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
DIR, G
5
101010
pF
CI/OUT
Output
Capacitance
An, Bn
13
pF
CPD
Power Dissipation
Capacitance (note
1)
37
pF


Html Pages

1  2  3  4  5  6  7  8  9  10  11 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
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