
SN54ABT162841, SN74ABT162841
20BIT BUSINTERFACE DTYPE LATCHES
WITH 3STATE OUTPUTS
SCBS665C JUNE 1996 REVISED JUNE 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Members of the Texas Instruments
Widebus
E Family
D Output Ports Have Equivalent 25- Series
Resistors, So No External Resistors Are
Required
D Typical VOLP (Output Ground Bounce)
<0.8 V at VCC = 5 V, TA = 25°C
D High-Impedance State During Power Up
and Power Down
D Ioff and Power-Up 3-State Support Hot
Insertion
D Distributed VCC and GND Pins Minimize
High-Speed Switching Noise
D Flow-Through Architecture Optimizes PCB
Layout
D Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
description/ordering information
These 20-bit transparent D-type latches feature
noninverting 3-state outputs designed specifically
for
driving
highly
capacitive
or
relatively
low-impedance loads. They are particularly
suitable for implementing buffer registers, I/O
ports, bidirectional bus drivers, and working
registers.
The ’ABT162841 devices can be used as two
10-bit latches or one 20-bit latch. While the
latch-enable (1LE or 2LE) input is high, the Q
outputs of the corresponding 10-bit latch follow
the data (D) inputs. When LE is taken low, the
Q outputs are latched at the levels set up at the D
inputs.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SSOP DL
Tube
SN74ABT162841DL
ABT162841
40
°C to 85°C
SSOP DL
Tape and reel
SN74ABT162841DLR
ABT162841
40 C to 85 C
TSSOP DGG
Tape and reel
SN74ABT162841DGGR
ABT162841
55
°C to 125°C
CFP WD
Tube
SNJ54ABT162841WD
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
2004, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
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 is a trademark of Texas Instruments.
SN54ABT162841 . . . WD PACKAGE
SN74ABT162841 . . . DGG OR DL PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
1OE
1Q1
1Q2
GND
1Q3
1Q4
VCC
1Q5
1Q6
1Q7
GND
1Q8
1Q9
1Q10
2Q1
2Q2
2Q3
GND
2Q4
2Q5
2Q6
VCC
2Q7
2Q8
GND
2Q9
2Q10
2OE
1LE
1D1
1D2
GND
1D3
1D4
VCC
1D5
1D6
1D7
GND
1D8
1D9
1D10
2D1
2D2
2D3
GND
2D4
2D5
2D6
VCC
2D7
2D8
GND
2D9
2D10
2LE