SN74AHC595-Q1

www.ti.com FEATURES 1 Qualified for Automotive Applications Operating Range 2-V to 5.5-V VCC 8-Bit Serial-In, Parallel-Out Shift Shift Register Has Direct Clear SN74AHC595-Q1 8-BIT SHIFT REGISTER WITH 3-STATE OUTPUT REGISTERS SCLS537B – AUGUST 2003 – REVISED JANUARY 2008 PW PACKAGE (TOP VIEW) QB 1 QC 2 QD 3 QE 4 QF 5 QG 6 QH 7 GND 8 16 VCC 15 QA 14 SER 13 OE 12 RCLK 11 SRCLK 10 SRCLR 9 QH′ DESCRIPTION/ORDERING INFORMATION The SN74AHC595 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 registers. 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 QH', 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. TA –40°C to 125°C TSSOP – PW ORDERING INFORMATION(1) PACKAGE (2) ORDERABLE PART NUMBER Reel of 2000 SN74AHC595QPWRQ1 TOP-SIDE MARKING HA595Q (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....