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SN54HCT244J

Part # SN54HCT244J
Description Buffer/Line Driver 8-CH Non-Inverting 3-ST CMOS 20-Pin CDI
Category IC
Availability Out of Stock
Qty 0
Qty Price
1 + $2.59580

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

SN54HCT244, SN74HCT244
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS175D – MARCH 1984 – REVISED AUGUST 2003
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range, C
L
= 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
V
CC
T
A
= 25°C SN54HCT244 SN74HCT244
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
pd
A
Y
4.5 V 21 45 68 56
ns
t
pd
A
Y
5.5 V 18 40 61 51
ns
t
en
OE
Y
4.5 V 25 52 79 65
ns
t
en
OE
Y
5.5 V 22 47 71 59
ns
t
t
Y
4.5 V 17 42 63 53
ns
t
t
Y
5.5 V 14 38 57 48
ns
operating characteristics, T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance per buffer/driver No load 40 pF
SN54HCT244, SN74HCT244
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SCLS175D – MARCH 1984 – REVISED AUGUST 2003
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
1.3 V
10%
90%
3 V
≈V
CC
V
OL
0 V
Output
Control
(Low-Level
Enabling)
Output
Waveform 1
(See Note B)
1.3 V
t
PZL
t
PLZ
V
OH
≈0 V
1.3 V
1.3 V
t
PZH
t
PHZ
Output
Waveform 2
(See Note B)
From Output
Under Test
R
L
V
CC
S1
S2
LOAD CIRCUIT
PARAMETER C
L
t
PZH
t
pd
or t
t
t
dis
t
en
t
PZL
t
PHZ
t
PLZ
1 kΩ
1 kΩ
50 pF
or
150 pF
50 pF
Open Closed
R
L
S1
Closed Open
S2
Open Closed
Closed Open
50 pF
or
150 pF
Open Open––
NOTES: A. C
L
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, Z
O
= 50 Ω, t
r
= 6 ns, t
f
= 6 ns.
D. The outputs are measured one at a time with one input transition per measurement.
E. t
PLZ
and t
PHZ
are the same as t
dis
.
F. t
PZL
and t
PZH
are the same as t
en
.
G. t
PLH
and t
PHL
are the same as t
pd
.
C
L
(see Note A)
Test
Point
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
1.3 V1.3 V
0.3 V0.3 V
2.7 V 2.7 V
3 V
0 V
t
r
t
f
Input
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT RISE AND FALL TIMES
1.3 V
1.3 V1.3 V
10%10%
90% 90%
3 V
V
OH
V
OL
0 V
t
r
t
f
Input
In-Phase
Output
1.3 V
t
PLH
t
PHL
1.3 V 1.3 V
10% 10%
90%90%
V
OH
V
OL
t
r
t
f
t
PHL
t
PLH
Out-of-
Phase
Output
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES FOR 3-STATE OUTPUTS
Figure 1. Load Circuit and Voltage Waveforms
PACKAGING INFORMATION
Orderable Device Status
(1)
Package
Type
Package
Drawing
Pins Package
Qty
Eco Plan
(2)
Lead/Ball Finish MSL Peak Temp
(3)
5962-8513001VRA ACTIVE CDIP J 20 1 None Call TI Level-NC-NC-NC
5962-8513001VSA ACTIVE CFP W 20 1 None Call TI Level-NC-NC-NC
85130012A ACTIVE LCCC FK 20 1 None Call TI Level-NC-NC-NC
8513001RA ACTIVE CDIP J 20 1 None Call TI Level-NC-NC-NC
JM38510/65755B2A ACTIVE LCCC FK 20 1 None Call TI Level-NC-NC-NC
JM38510/65755BRA ACTIVE CDIP J 20 1 None Call TI Level-NC-NC-NC
SN54HCT244J ACTIVE CDIP J 20 1 None Call TI Level-NC-NC-NC
SN74HCT244DBLE OBSOLETE SSOP DB 20 None Call TI Call TI
SN74HCT244DBR ACTIVE SSOP DB 20 2000 Pb-Free
(RoHS)
CU NIPDAU Level-2-260C-1 YEAR/
Level-1-235C-UNLIM
SN74HCT244DW ACTIVE SOIC DW 20 25 Pb-Free
(RoHS)
CU NIPDAU Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
SN74HCT244DWR ACTIVE SOIC DW 20 2000 Pb-Free
(RoHS)
CU NIPDAU Level-2-250C-1 YEAR/
Level-1-235C-UNLIM
SN74HCT244N ACTIVE PDIP N 20 20 Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
SN74HCT244N3 OBSOLETE PDIP N 20 None Call TI Call TI
SN74HCT244NSR ACTIVE SO NS 20 2000 Pb-Free
(RoHS)
CU NIPDAU Level-2-260C-1 YEAR/
Level-1-235C-UNLIM
SN74HCT244PW ACTIVE TSSOP PW 20 70 Pb-Free
(RoHS)
CU NIPDAU Level-1-250C-UNLIM
SN74HCT244PWLE OBSOLETE TSSOP PW 20 None Call TI Call TI
SN74HCT244PWR ACTIVE TSSOP PW 20 2000 Pb-Free
(RoHS)
CU NIPDAU Level-1-250C-UNLIM
SN74HCT244PWT ACTIVE TSSOP PW 20 250 Pb-Free
(RoHS)
CU NIPDAU Level-1-250C-UNLIM
SNJ54HCT244FK ACTIVE LCCC FK 20 1 None Call TI Level-NC-NC-NC
SNJ54HCT244J ACTIVE CDIP J 20 1 None Call TI Level-NC-NC-NC
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - May not be currently available - please check http://www.ti.com/productcontent for the latest availability information and additional
product content details.
None: Not yet available Lead (Pb-Free).
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean "Pb-Free" and in addition, uses package materials that do not contain halogens,
including bromine (Br) or antimony (Sb) above 0.1% of total product weight.
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
PACKAGE OPTION ADDENDUM
www.ti.com
28-Feb-2005
Addendum-Page 1
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