SN54ALVTH16374, SN74ALVTH16374
2.5-V/3.3-V 16-BIT EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCES068F – JUNE 1996 – REVISED JANUARY 1999
SN54ALVTH16374 . . . WD PACKAGE
SN74ALVTH16374 . . . DGG, DGV, OR DL PACKAGE
(TOP VIEW)
State-of-the-Art Advanced BiCMOS
Technology (ABT) Widebus Design for
2.5-V and 3.3-V Operation and Low Static
Power Dissipation
1OE
1Q1
1Q2
GND
1Q3
1Q4
1CLK
1
2
3
4
5
6
7
8
9
48
Support Mixed-Mode Signal Operation (5-V
Input and Output Voltages With 2.3-V to
47 1D1
46 1D2
45 GND
44 1D3
3.6-V V
)
CC
Typical V
< 0.8 V at V
(Output Ground Bounce)
OLP
= 3.3 V, T = 25°C
1D4
CC
A
43
42
V
V
High Drive (–24/24 mA at 2.5-V and
–32/64 mA at 3.3-V V
CC
CC
)
1Q5
1Q6
41 1D5
40 1D6
39 GND
38 1D7
37 1D8
36 2D1
35 2D2
34 GND
33 2D3
32 2D4
CC
Power Off Disables Outputs, Permitting
Live Insertion
GND 10
1Q7 11
1Q8 12
2Q1 13
2Q2 14
GND 15
2Q3 16
2Q4 17
High-Impedance State During Power Up
and Power Down Prevents Driver Conflict
Uses Bus Hold on Data Inputs in Place of
External Pullup/Pulldown Resistors to
Prevent the Bus From Floating
Auto3-State Eliminates Bus Current
Loading When Output Exceeds V
+ 0.5 V
CC
V
18
31
V
CC
CC
Latch-Up Performance Exceeds 250 mA Per
JESD 17
2Q5 19
2Q6 20
GND 21
2Q7 22
2Q8 23
2OE 24
30 2D5
29 2D6
28 GND
27 2D7
26 2D8
25 2CLK
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model; and Exceeds 1000 V
Using Charged-Device Model, Robotic
Method
Flow-Through Architecture Facilitates
Printed Circuit Board Layout
Distributed V
Minimizes High-Speed Switching Noise
and GND Pin Configuration
CC
Package Options Include Plastic Shrink
Small-Outline (DL), Thin Shrink
Small-Outline (DGG), Thin Very
Small-Outline (DGV) Packages, and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
description
The ’ALVTH16374 devices are 16-bit edge-triggered D-type flip-flops with 3-state outputs designed for 2.5-V
or 3.3-V V operation, but with the capability to provide a TTL interface to a 5-V system environment. These
CC
devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and
working registers.
These devices can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive transition of the clock
(CLK), the flip-flops store the logic levels set up at the data (D) inputs.
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 Incorporated.
Copyright 1999, 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.
1
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