1. General description
The 74LVC594A-Q100 is an 8-bit serial-in/serial or parallel-out shift register with a storage
register. Separate clock and reset inputs are provided on both shift and storage registers.
The input can be driven from either 3.3 V or 5 V devices. This feature allows the use of
this device in a mixed 3.3 V and 5 V environment.
This device is fully specified for partial Power-down applications using I
OFF
.
The I
OFF
circuitry disables the output, preventing the damaging backflow current through
the device when it is powered down.
The shift register has a serial input (DS) and a serial output (Q7S) for cascading
purposes. Data is shifted on the positive-going transitions of the SHCP input. The data in
the shift register is transferred to the storage register on a positive-going transition of the
STCP input. If both clocks are connected together, the shift register is always one clock
pulse ahead of the storage register. A LOW level on one of the two register reset pins
(SHR
and STR) clears the corresponding register.
This product has been qualified to the Automotive Electronics Council (AEC) standard
Q100 (Grade 1) and is suitable for use in automotive applications.
2. Features and benefits
Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Specified from 40 C to +85 C and from 40 C to +125 C
5 V tolerant inputs/outputs for interfacing with 5 V logic
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels
Balanced propagation delays
All inputs have Schmitt-trigger action
Complies with JEDEC standard:
JESD8-7A (1.65 V to 1.95 V)
JESD8-5A (2.3 V to 2.7 V)
JESD8-C/JESD36 (2.7 V to 3.6 V)
ESD protection:
MIL-STD-883, method 3015 exceeds 2000 V
HBM JESD22-A114F exceeds 2000 V
74LVC594A-Q100
8-bit shift register with output register
Rev. 1 — 15 November 2013 Product data sheet
