ꢀꢁꢂ ꢃ ꢄ ꢅꢆ ꢇꢈ ꢉꢃꢇ
ꢇ ꢈ ꢊꢅꢋ ꢆꢌ ꢅꢍꢎ ꢎꢏ ꢐꢑ ꢒ ꢐꢋ ꢓ ꢏ ꢐ
ꢔ ꢋꢆ ꢕꢌ ꢖ ꢊꢀꢆꢄꢆ ꢏꢌ ꢗꢍ ꢆꢘ ꢍꢆ ꢀ
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SCBS347 − MAY 1994
DL PACKAGE
(TOP VIEW)
• Member of the Texas Instruments
Widebus Family
• State-of-the-Art EPIC-ΙΙB BiCMOS Design
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1Y1
1Y2
GND
1Y3
1Y4
2OE
1A1
1A2
GND
1A3
1A4
Significantly Reduces Power Dissipation
2
• Typical V
(Output Ground Bounce)
OLP
CC
3
< 1 V at V
= 5 V, T = 25°C
A
4
• Distributed V
and GND Pin Configuration
Minimizes High-Speed Switching Noise
5
CC
6
• Flow-Through Architecture Optimizes
7
V
V
CC
CC
PCB Layout
8
2Y1
2Y2
GND
2Y3
2Y4
3Y1
3Y2
GND
3Y3
3Y4
2A1
2A2
GND
2A3
2A4
3A1
3A2
GND
3A3
3A4
9
• High-Drive Outputs (−32-mA I
,
OH
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
64-mA I
)
OL
• Packaged in Plastic 300-mil Shrink
Small-Outline (SSOP) Packages
description
The SN74ABT16241 is a 16-bit buffer and line
driver designed specifically to improve both the
performance and density of 3-state memory
address drivers, clock drivers, and bus-oriented
receivers and transmitters. The device can be
used as four 4-bit buffers, two 8-bit buffers, or one
16-bit buffer. This device provides true outputs
and complementary output-enable (OE and OE)
inputs.
V
V
CC
CC
4Y1
4Y2
GND
4Y3
4Y4
4A1
4A2
GND
4A3
4A4
3OE
4OE
To ensure the high-impedance state during power
up or power down, OE should be tied to V
CC
through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of
the driver. OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined
by the current-sourcing capability of the driver.
The SN74ABT16241 is available in TI’s shrink small-outline package (DL), which provides twice the I/O pin
count and functionality of standard small-outline packages in the same printed-circuit-board area.
The SN74ABT16241 is characterized for operation from −40°C to 85°C.
FUNCTION TABLE
INPUTS
INPUTS
OUTPUTS
1Y, 4Y
OUTPUTS
2Y, 3Y
1A, 4A
1OE, 4OE
2OE, 3OE
2A, 3A
L
L
H
L
H
L
H
H
L
H
L
H
L
H
X
Z
X
Z
Widebus and EPIC-ΙΙB are trademarks of Texas Instruments Incorporated.
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Copyright 1994, Texas Instruments Incorporated
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ꢣ ꢧ ꢤ ꢣꢜ ꢝꢱ ꢟꢞ ꢢ ꢪꢪ ꢨꢢ ꢠ ꢢ ꢡ ꢧ ꢣ ꢧ ꢠ ꢤ ꢬ
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2−1
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