Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

74HC244 Datasheet(PDF) 7 Page - NXP Semiconductors

Part No. 74HC244
Description  Octal buffer/line driver; 3-state
Download  18 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74HC244 Datasheet(HTML) 7 Page - NXP Semiconductors

Back Button 74HC244 Datasheet HTML 3Page - NXP Semiconductors 74HC244 Datasheet HTML 4Page - NXP Semiconductors 74HC244 Datasheet HTML 5Page - NXP Semiconductors 74HC244 Datasheet HTML 6Page - NXP Semiconductors 74HC244 Datasheet HTML 7Page - NXP Semiconductors 74HC244 Datasheet HTML 8Page - NXP Semiconductors 74HC244 Datasheet HTML 9Page - NXP Semiconductors 74HC244 Datasheet HTML 10Page - NXP Semiconductors 74HC244 Datasheet HTML 11Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 18 page
background image
74HC_HCT244
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 4 — 24 September 2012
7 of 18
NXP Semiconductors
74HC244; 74HCT244
Octal buffer/line driver; 3-state
[1]
tpd is the same as tPHL and tPLH.
[2]
ten is the same as tPZH and tPZL.
[3]
tdis is the same as tPHZ and tPLZ.
[4]
tt is the same as tTHL and tTLH.
[5]
CPD is used to determine the dynamic power dissipation (PD in W):
PD =CPD  VCC2  fi  N+  (CL  VCC2  fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
 (C
L  VCC
2
 f
o) = sum of outputs.
ten
enable time
nOE to nYn; see Figure 7
[2]
VCC = 2.0 V
-
36
150
190
225
ns
VCC = 4.5 V
-
13
30
38
45
ns
VCC = 6.0 V
-
10
26
33
38
ns
tdis
disable time
nOE to nYn or see Figure 7
[3]
VCC = 2.0 V
-
39
150
190
225
ns
VCC = 4.5 V
-
14
30
38
45
ns
VCC = 6.0 V
-
11
26
33
38
ns
tt
transition time
see Figure 6
[4]
VCC = 2.0 V
-
14
60
75
90
ns
VCC = 4.5 V
-
5
12
15
18
ns
VCC = 6.0 V
-
4
10
13
15
ns
CPD
power dissipation
capacitance
per buffer; VI =GND to VCC
[5]
-35-
-
-
pF
74HCT244
tpd
propagation delay
nAn to nYn;
see Figure 6
[1]
VCC = 4.5 V
-
13
22
28
33
ns
VCC = 5.0 V; CL =15pF
-
11
-
-
-
ns
ten
enable time
nOE to nYn; VCC = 4.5 V; see
Figure 7
[2]
-15
3038
45
ns
tdis
disable time
nOE to nYn; VCC = 4.5 V; see
Figure 7
[3]
-15
2531
38
ns
tt
transition time
VCC = 4.5 V; see Figure 6
[4]
-
5
12
15
18
ns
CPD
power dissipation
capacitance
per buffer;
VI =GND to VCC  1.5 V
[5]
-35-
-
-
pF
Table 7.
Dynamic characteristics …continued
GND = 0 V; for load circuit see Figure 8.
Symbol Parameter
Conditions
25
C
40 C to +125 C Unit
Min
Typ
Max
Max
(85
C)
Max
(125
C)


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18 


Datasheet Download

Go To PDF Page


Link URL




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

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   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