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PDF 54HC244 Data sheet ( Hoja de datos )
| Número de pieza | 54HC244 | |
| Descripción | High-Speed CMOS Logic | |
| Fabricantes | ETC | |
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Data sheet acquired from Harris Semiconductor
SCHS167E
November 1997 - Revised October 2004
CD54/74HC240, CD54/74HCT240,
CD74HC241, CD54/74HCT241,
CD54/74HC244, CD54/74HCT244
High-Speed CMOS Logic
Octal Buffer/Line Drivers, Three-State
[ /Title
(CD74
HC240
,
CD74
HCT24
0,
CD74
HC241
,
CD74
HCT24
1,
CD74
HC244
,
CD74
Features
Ordering Information
• HC/HCT240 Inverting
• HC/HCT241 Non-Inverting
• HC/HCT244 Non-Inverting
•
Typical Propagation Delay = 8ns
CL = 15pF, TA = 25oC for HC240
at
VCC
=
5V,
• Three-State Outputs
• Buffered Inputs
• High-Current Bus Driver Outputs
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC
at VCC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
VIL= 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH
PART NUMBER
CD54HC240F3A
CD54HC244F3A
CD54HCT240F3A
CD54HCT241F3A
CD54HCT244F3A
CD74HC240E
CD74HC240M
CD74HC240M96
CD74HC241E
CD74HC241M
CD74HC241M96
CD74HC244E
CD74HC244M
CD74HC244M96
CD74HCT240E
CD74HCT240M
CD74HCT240M96
TEMP. RANGE
(oC)
PACKAGE
-55 to 125
20 Ld CERDIP
-55 to 125
20 Ld CERDIP
-55 to 125
20 Ld CERDIP
-55 to 125
20 Ld CERDIP
-55 to 125
20 Ld CERDIP
-55 to 125
20 Ld PDIP
-55 to 125
20 Ld SOIC
-55 to 125
20 Ld SOIC
-55 to 125
20 Ld PDIP
-55 to 125
20 Ld SOIC
-55 to 125
20 Ld SOIC
-55 to 125
20 Ld PDIP
-55 to 125
20 Ld SOIC
-55 to 125
20 Ld SOIC
-55 to 125
20 Ld PDIP
-55 to 125
20 Ld SOIC
-55 to 125
20 Ld SOIC
Description
The ’HC240 and ’HCT240 are inverting three-state buffers
having two active-low output enables. The CD74HC241,
’HCT241, ’HC244 and ’HCT244 are non-inverting three-
state buffers that differ only in that the 241 has one active-
high and one active-low output enable, and the 244 has two
active-low output enables. All three types have identical
pinouts.
CD74HCT240PW
CD74HCT240PWR
CD74HCT240PWT
CD74HCT241E
CD74HCT241M
CD74HCT241M96
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
-55 to 125
20 Ld TSSOP
20 Ld TSSOP
20 Ld TSSOP
20 Ld PDIP
20 Ld SOIC
20 Ld SOIC
CD74HCT244E
-55 to 125
20 Ld PDIP
CD74HCT244M
-55 to 125
20 Ld SOIC
CD74HCT244M96
-55 to 125
20 Ld SOIC
NOTE: When ordering, use the entire part number. The suffixes 96
and R denote tape and reel. The suffix T denotes a small-quantity
reel of 250.
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © 2004, Texas Instruments Incorporated
1
1 page  
CD54/74HC240, CD54/74HCT240, CD74HC241, CD54/74HCT241, CD54/74HC244, CD54/74HCT244
Switching Specifications CL = 50pF, Input tr, tf = 6ns
PARAMETER
SYMBOL
TEST
CONDI-
TIONS
25oC
-40oC TO 85oC -55oC TO 125oC
VCC
(V) MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
HC TYPES
Propagation Delay
Data to Outputs
HC240
tPLH, tPHL CL = 50pF
2
4.5
-
-
- 100 -
- 20 -
- 125 -
- 25 -
- 150 ns
- 30 ns
Data to Outputs
HC241
CL = 15pF
CL = 50pF
tPLH, tPHL CL = 50pF
5
6
2
4.5
-
-
-
-
8- -
- 17 -
- 110 -
- 22 -
---
- 21 -
- 140 -
- 28 -
- - ns
- 26 ns
- 165 ns
- 33 ns
Data to Outputs
HC244
CL = 15pF
CL = 50pF
tPLH, tPHL CL = 50pF
5
6
2
4.5
-
-
-
-
9- -
- 19 -
- 110 -
- 22 -
---
- 24 -
- 140 -
- 28 -
- - ns
- 28 ns
- 165 ns
- 33 ns
Output Enable and Disable
Time
tTHL, tTLH
CL = 15pF
CL = 50pF
CL = 50pF
5
6
2
4.5
-
-
-
-
9- -
- 19 -
- 150 -
- 30 -
---
- 24 -
- 190 -
- 38 -
- - ns
- 28 ns
- 225 ns
- 45 ns
5 - 12 - - - - - - - ns
6 - - 26 - - 33 - - 38 ns
Output Transition Time
tTLH, tTHL CL = 50pF
2
4.5
-
-
- 60 -
- 12 -
- 75 -
- 15 -
- 90 ns
- 18 ns
6 - - 10 - - 13 - - 15 ns
Input Capacitance
Three-State Output
Capacitance
CI
CL = 50pF - 10 - 10 -
- 10 -
- 10 pF
CO CL = 50pF - - - 20 - - 20 - - 20 pF
Power Dissipation Capacitance
(Notes 3, 4)
CPD
CL = 15pF
HC240
5 - 38 - - - - - - - pF
HC241
5 - 34 - - - - - - - pF
HC244
5 - 46 - - - - - - - pF
HCT TYPES
Propagation Delay
Data to Outputs
HCT240
Data to Outputs
HCT241
Data to Outputs
HCT244
tPHL, tPLH CL = 50pF 4.5 -
- 22 -
CL = 15pF 5 - 9 - -
tPHL, tPLH CL = 50pF 4.5 -
- 25 -
CL = 15pF 5
- 10 -
-
tPHL, tPLH CL = 50pF 4.5 -
- 25 -
CL = 15pF 5
- 10 -
-
- 28 -
---
- 31 -
---
- 31 -
---
- 33 ns
- - ns
- 38 ns
- - ns
- 38 ns
- - ns
5
5 Page 
PW (R-PDSO-G**)
14 PINS SHOWN
0,65
14
0,30
0,19
8
0,10 M
4,50 6,60
4,30 6,20
1
A
7
MECHANICAL DATA
MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999
PLASTIC SMALL-OUTLINE PACKAGE
0,15 NOM
Gage Plane
0°– 8°
0,25
0,75
0,50
1,20 MAX
0,15
0,05
Seating Plane
0,10
PINS **
DIM
8
14 16 20 24 28
A MAX
3,10 5,10 5,10 6,60 7,90 9,80
A MIN
2,90 4,90 4,90 6,40 7,70 9,60
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
4040064/F 01/97
•POST OFFICE BOX 655303 DALLAS, TEXAS 75265
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet 54HC244.PDF ] | |
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