74HC595

The 74HC595 is high-speed Si-gateCMOSdevices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

The 74HC595 is an 8-stage serial shift register with a storage register and 3-state outputs. The shift register and storage register have separate clocks.

Data of the 74HC595 is shifted on the positive-going transitions of the SH_CP input. The data in each register is transferred to the storage register on a positive-going transition of the ST_CP input. If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register.

The shift register of the 74HC595 has a serial input (DS) and a serial standard output (Q7') for cascading. It is also provided with asynchronous reset (active LOW) for all 8 shift register stages. The storage register has 8 parallel 3-state bus driver outputs. Data in the storage register appears at the output whenever the output enable input (OE) is LOW.

The 74HC595 is high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL(LSTTL).It is specified in compliance with JEDEC standard no. 7A.The74HC595 is an 8-stage serial shift register with a storage register and 3-state outputs.The shift register and storage register have separate clocks.Data is shifted on the positive-going transitions of the SH_CP input. The data of the 74HC595 in each register is transferred to the storage register on a positive-going transition of the ST_CP input. If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register.

Features of the 74HC595 are:(1)8-bit serial input; (2)8-bit serial or parallel output; (3)storage register with 3-state outputs; (4)shift register with direct clear; (5)100 MHz (typical) shift out frequency.These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury.Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.

The absolute maximum ratings of the 74HC595 can be summarized as:(1)supply voltage:-0.5 to 7.0V;(2)storage temperature:-65 to 150;(3)input diode current:±20 mA;(4)output diode current:±20 mA;(5)VCC or GND current:±70 mA;(6)power dissipation:500mW.Philips Semiconductors reserves the right to make changes in the products -including circuits, standard cells, and/or software -described or contained herein in order to improve design and/or performance.When the product is in full production(status 'Production'), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN).Philips Semiconductors of the 74HC595 assumes no responsibility or liability for the use of any of these products, conveys no licence or title under any patent,copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.