Texas Instruments SN74ABT162244DGGR, SN74ABT162244DGVR, SN74ABT162244DL, SN74ABT162244DLR, SNJ54ABT162244WD Datasheet
SN54ABT162244, SN74ABT162244
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS238D – JUNE 1992 – REVISED MA Y 1997
D
Members of the Texas Instruments
Widebus
D
Output Ports Have Equivalent 25-Ω Series
Family
Resistors, So No External Resistors Are
Required
D
State-of-the-Art
EPIC-ΙΙB
BiCMOS Design
Significantly Reduces Power Dissipation
D
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
D
Typical V
(Output Ground Bounce)
OLP
< 1 V at VCC = 5 V, TA = 25°C
D
High-Impedance State During Power Up
and Power Down
D
Distributed VCC and GND Pin Configuration
Minimizes High-Speed Switching Noise
D
Flow-Through Architecture Optimizes PCB
Layout
D
Package Options Include Plastic 300-mil
Shrink Small-Outline (DL), Thin Shrink
Small-Outline (DGG), and Thin Very
Small-Outline (DGV) Packages and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
Using 25-mil Center-to-Center Spacings
description
The ’ABT162244 are 16-bit buffers and line
drivers designed specifically to improve both the
performance and density of 3-state memory
address drivers, clock drivers, and bus-oriented
receivers and transmitters. These devices can be
used as four 4-bit buffers, two 8-bit buffers, or one
16-bit buffer . These devices provide noninverting
outputs and symmetrical active-low outputenable (OE
) inputs.
SN54ABT162244 . . . WD PACKAGE
SN74ABT162244 . . . DGG, DGV, OR DL PACKAGE
1OE
1Y1
1Y2
GND
1Y3
1Y4
V
CC
2Y1
2Y2
GND
2Y3
2Y4
3Y1
3Y2
GND
3Y3
3Y4
V
CC
4Y1
4Y2
GND
4Y3
4Y4
4OE
(TOP VIEW)
1
48
2
47
3
46
4
45
5
44
6
43
7
42
8
41
9
40
10
39
11
38
12
37
13
36
14
35
15
34
16
33
17
32
18
31
19
30
20
29
21
28
22
27
23
26
24
25
2OE
1A1
1A2
GND
1A3
1A4
V
CC
2A1
2A2
GND
2A3
2A4
3A1
3A2
GND
3A3
3A4
V
CC
4A1
4A2
GND
4A3
4A4
3OE
The outputs, which are designed to source or sink up to 12 mA, include equivalent 25-Ω series resistors to
reduce overshoot and undershoot.
When V
is between 0 and 2.1 V , the device is in the high-impedance state during power up or power down.
CC
However, to ensure the high-impedance state above 2.1 V, OE should be tied to VCC through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54ABT162244 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABT162244 is characterized for operation from –40°C to 85°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus and EPIC-ΙΙB are trademarks of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 1997, Texas Instruments Incorporated
1
SN54ABT162244, SN74ABT162244
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS238D – JUNE 1992 – REVISED MA Y 1997
FUNCTION TABLE
(each 4-bit buffer)
INPUTS
OE
L H H
L LL
H X Z
OUTPUT
A
Y
logic symbol
†
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1
48
25
24
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
EN1
EN2
EN3
EN4
11
12
13
14
16
17
19
20
22
23
2
1Y1
3
1Y2
5
1Y3
6
1Y4
8
2Y1
9
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
1
1
1
2
1
3
1
4
1OE
2OE
3OE
4OE
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic diagram (positive logic)
SN54ABT162244, SN74ABT162244
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS238D – JUNE 1992 – REVISED MA Y 1997
1OE
1A1
1A2
1A3
1A4
2OE
2A1
2A2
2A3
2A4
1
47
46
44
43
48
41
40
38
37
11
12
25
3OE
2
1Y1
3
1Y2
5
1Y3
6
1Y4
8
2Y1
9
2Y2
2Y3
2Y4
3A1
3A2
3A3
3A4
4OE
4A1
4A2
4A3
4A4
36
35
33
32
24
30
29
27
26
13
14
16
17
19
20
22
23
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high or power-off state, VO –0.5 V to 5.5 V. . . . . . . . . . . . . . . . . . .
Current into any output in the low state, I
Input clamp current, I
Output clamp current, I
(V
< 0) –18 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IK
I
(V
OK
< 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
O
Package thermal impedance, θJA (see Note 2): DGG package 89°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package 93°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DL package 94°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with EIA/JEDEC Std JESD51.
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
30 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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