Datasheet
SN54HC595
SN74HC595
www.ti.com
SCLS041H –DECEMBER 1982–REVISED NOVEMBER 2009
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
V
CC
Supply voltage range −0.5 V to 7 V
I
IK
Input clamp current
(2)
V
I
< 0 or V
I
> V
CC
±20 mA
I
OK
Output clamp current
(2)
V
O
< 0 or V
O
> V
CC
±20 mA
I
O
Continuous output current V
O
= 0 to V
CC
±35 mA
Continuous current through VCC or GND ±70 mA
D package 73°C/W
DB package 82°C/W
DW package 57°C/W
θ
JA
Package thermal impedance
(3)
N package 67°C/W
NS package 64°C/W
PW package 108°C/W
T
stg
Storage temperature range −65°C to 150°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
(3) The package thermal impedance is calculated in accordance with JESD 51-7.
RECOMMENDED OPERATING CONDITIONS
(1)
SN54HC595 SN74HC595
UNIT
MIN NOM MAX MIN NOM MAX
V
CC
Supply voltage 2 5 6 2 5 6 V
V
CC
= 2 V 1.5 1.5
V
IH
High-level input voltage V
CC
= 4.5 V 3.15 3.15 V
V
CC
= 6 V 4.2 4.2
V
CC
= 2 V 0.5 0.5
V
IL
Low-level input voltage V
CC
= 4.5 V 1.35 1.35 V
V
CC
= 6 V 1.8 1.8
V
I
Input voltage 0 V
CC
0 V
CC
V
V
O
Output voltage 0 V
CC
0 V
CC
V
V
CC
= 2 V 1000 1000
Δt/Δv Input transition rise/fall time
(2)
V
CC
= 4.5 V 500 500 ns
V
CC
= 6 V 400 400
T
A
Operating free-air temperature –55 125 –40 85 °C
(1) All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. See the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
(2) If this device is used in the threshold region (from V
IL
max = 0.5 V to V
IH
min = 1.5 V), there is a potential to go into the wrong state from
induced grounding, causing double clocking. Operating with the inputs at t
t
= 1000 ns and V
CC
= 2 V does not damage the device;
however, functionally, the CLK inputs are not ensured while in the shift, count, or toggle operating modes.
Copyright © 1982–2009, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): SN54HC595 SN74HC595