SN74LV595A-Q1 Datasheet, PDF (1/14 Pages) Texas Instruments – 8-BIT SHIFT REGISTER WITH 3-STATE OUTPUT REGISTERS

SN74LV595A-Q1
www.ti.com
SCLS539D – AUGUST 2003 – REVISED OCTOBER 2009
8-BIT SHIFT REGISTER WITH 3-STATE OUTPUT REGISTERS
Check for Samples: SN74LV595A-Q1
FEATURES
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• Qualified for Automotive Applications
• Customer-Specific Configuration Control Can
Be Supported Along With Major-Change
Approval
• 2-V to 5.5-V V_CC Operation
• Typical V_OLP (Output Ground Bounce) < 0.8 V
at V_CC = 3.3 V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot) > 2.3 V
at V_CC = 3.3 V, T_A = 25°C
• Supports Mixed-Mode Voltage Operation on
All Ports
• 8-Bit Serial-In, Parallel-Out Shift
• I_off Supports Partial-Power-Down Mode
Operation
• Shift Register Has Direct Clear
Q_{B 1}
Q_{C 2}
Q_{D 3}
Q_E 4
Q_F 5
Q_G 6
Q_H 7
GND 8
16 ^VCC
15 ^QA
14 ^SER
13 OE
12 RCLK
11 SRCLK
10 SRCLR
9 Q_H′
DESCRIPTION
The SN74LV595A is an 8-bit shift register designed for 2-V to 5.5-V V_CC operation.
This device contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The
storage register has parallel 3-state outputs. Separate clocks are provided for both the shift and storage register.
The shift register has a direct overriding clear (SRCLR) input, serial (SER) input, and a serial output for
cascading. When the output-enable (OE) input is high, all outputs except Q_H' are in the high-impedance state.
Both the shift register clock (SRCLK) and storage register clock (RCLK) are positive-edge triggered. If both
clocks are connected together, the shift register always is one clock pulse ahead of the storage register.
To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
T_A
–40°C to 85°C
–40°C to 125°C
TSSOP − PW
TSSOP − PW
ORDERING INFORMATION⁽¹⁾
PACKAGE ⁽²⁾
ORDERABLE PART NUMBER
Reel of 2000
SN74LV595AIPWRQ1
Reel of 2000
SN74LV595AQPWRQ1
TOP-SIDE MARKING
LV595AI
LV595AQ
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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