74ABT162841DGGRE4 Datasheet, PDF (1/12 Pages) Texas Instruments – 20-BIT BUS-INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS

D Members of the Texas Instruments
WidebusE Family
D Output Ports Have Equivalent 25-Ω Series
Resistors, So No External Resistors Are
Required
D Typical V_OLP (Output Ground Bounce)
<0.8 V at V_CC = 5 V, T_A = 25°C
D High-Impedance State During Power Up
and Power Down
D I_off and Power-Up 3-State Support Hot
Insertion
D Distributed V_CC 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.
SN54ABT162841, SN74ABT162841
20ĆBIT BUSĆINTERFACE DĆTYPE LATCHES
WITH 3ĆSTATE OUTPUTS
SCBS665C − JUNE 1996 − REVISED JUNE 2004
SN54ABT162841 . . . WD PACKAGE
SN74ABT162841 . . . DGG OR DL PACKAGE
(TOP VIEW)
1OE ¹
1Q1 ²
1Q2 ³
GND ⁴
1Q3 ⁵
1Q4 ⁶
V_CC ⁷
1Q5 ⁸
1Q6 ⁹
1Q7 ¹⁰
GND ¹¹
1Q8 ¹²
1Q9 ¹³
1Q10 ¹⁴
2Q1 ¹⁵
2Q2 ¹⁶
2Q3 ¹⁷
GND ¹⁸
2Q4 ¹⁹
2Q5 ²⁰
2Q6 ²¹
V_CC ²²
2Q7 ²³
2Q8 ²⁴
GND ²⁵
2Q9 ²⁶
2Q10 ²⁷
2OE ²⁸
56 _1LE
55 _1D1
54 _1D2
53 _GND
52 _1D3
51 _1D4
50 _VCC
49 _1D5
48 _1D6
47 _1D7
46 _GND
45 _1D8
44 _1D9
43 _1D10
42 _2D1
41 _2D2
40 _2D3
39 _GND
38 _2D4
37 _2D5
36 _2D6
35 _VCC
34 _2D7
33 _2D8
32 _GND
31 _2D9
30 _2D10
29 _2LE
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
−40°C to 85°C
SSOP − DL
TSSOP − DGG
Tube
Tape and reel
Tape and reel
SN74ABT162841DL
SN74ABT162841DLR
SN74ABT162841DGGR
ABT162841
ABT162841
−55°C to 125°C CFP − WD
Tube
SNJ54ABT162841WD
SNJ54ABT162841WD
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are}
available at www.ti.com/sc/package.
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.
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.
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Copyright  2004, Texas Instruments Incorporated
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