74HCT595
8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER
Description
Pin Assignments
The 74HCT595 is an high speed CMOS device that is designed to
be pin compatable with 74LS low power Schottky types.
An eight bit shift register accpets data from the serial input (DS)
on each positive transition of the shift register clock (STCP).
When asserted low the reset function (MR) sets all shift register
values to zero and is indepent of all clocks.
Data from the input serial shift register is placed in the output
register with a rising pulse on the storages resister clock (SHCP).
With the output enable (OEሻ asserted low the 3-state outputs Q0-
Q7 become active and present th
All registers capture data on rising edge and change output on the
falling edge. If both clocks are connected together the input shift
register is always one clock cycle ahead of the output register.
Features
Applications
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Supply Voltage Range from 4.5V to 5.5V
Sinks or sources 8mA at VCC = 4.5V
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General Purpose Logic
Serial to Parallel Data conversion
CMOS low power consumption
Capture and hold data for extended periods of time.
Allow simple serial bit streams from a microcontroller to
control as many peripheral lines as needed.
Wide array of products such as:
Schmitt Trigger Action at All Inputs
Inputs accept up to 6.0V
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ESD Protection Tested per JESD 22
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Computer peripherals
Appliances
Exceeds 200-V Machine Model (A115-A)
Exceeds 2000-V Human Body Model (A114-A)
Exceeds 1000-V Charged Device Model (C101C)
Latch-Up Exceeds 250mA per JESD 78, Class II
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Industrial control
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Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free. for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and < 1000 ppm antimony compounds.
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June 2013
© Diodes Incorporated
74HCT595
Document number: DS35493 Rev. 3 - 2