SN54LV74, SN74LV74
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS
SCLS189C – FEBRUARY 1993 – REVISED APRIL 1996
SN54LV74 . . . J OR W PACKAGE
SN74LV74 . . . D, DP, OR PW PACKAGE
(TOP VIEW)
EPIC (Enhanced-Performance Implanted
CMOS) 2-µ Process
Typical V (Output Ground Bounce)
OLP
< 0.8 V at V , T = 25°C
CC
A
1CLR
1D
V
CC
2CLR
2D
1
2
3
4
5
6
7
14
13
12
11
Typical V
> 2 V at V , T = 25°C
(Output V
Undershoot)
OHV
CC
OH
A
1CLK
1PRE
1Q
ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015; Exceeds
200 V Using Machine Model
(C = 200 pF, R = 0)
2CLK
10 2PRE
9
8
1Q
2Q
2Q
GND
Latch-Up Performance Exceeds 250 mA
Per JEDEC Standard JESD-17
SN54LV74 . . . FK PACKAGE
(TOP VIEW)
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Shrink Small-Outline (PW),
Ceramic Flat (W) Packages, Chip Carriers
(FK), and (J) 300-mil DIPs
3
2
1
20 19
18
2D
1CLK
NC
4
5
6
7
8
NC
17
16
description
2CLK
1PRE
NC
15 NC
14
These dual positive-edge-triggered D-type flip-
flops are designed for 2.7-V to 5.5-V V
operation.
2PRE
1Q
CC
9 10 11 12 13
A low level at the preset (PRE) or clear (CLR)
inputs sets or resets the outputs regardless of the
levels of the other inputs. When PRE and CLR are
inactive (high), data at the data (D) inputs meeting
the setup-time requirements is transferred to the
NC – No internal connection
outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly
related to the rise time of the clock pulse. Following the hold-time interval, data at the D input can be changed
without affecting the levels at the outputs.
The SN74LV74 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count
and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54LV74 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74LV74 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.
EPIC is a trademark of Texas Instruments Incorporated.
Copyright 1996, 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
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265