74LV595N

The 74LV595N belongs to74LV595 family which is a low-voltage Si-gate CMOS device that is pin and function compatible with 74HC/HCT595 and it 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 SHCP input. The data in each 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 of the 74LV595N will always be one clock pulse ahead of the storage register. The shift register has a serial input (DS) and a serial standard output (Q7') all 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 features of 74LV595N can be summarized as (1)optimized for low voltage applications: 1.0V to 3.6V; (2)accepts TTL input levels between VCC = 2.7V and VCC = 3.6V; (3)typical VOLP (output ground bounce) < 0.8V at VCC = 3.3V, Tamb = 25°C; (4)typical VOHV (output VOH undershoot) > 2V at VCC = 3.3V, Tamb = 25°C; (5)8-bit serial input; (6)8-bit serial or parallel output; (7)storage register with 3-state outputs; (8)shift register with direct clear; (9)output capability: -parallel outputs; bus driver, -serial output; standard; (10)ICC category: MSI.

The absolute maximum ratings of 74LV595N are (1)VCC DC supply voltage: -0.5 to +4.6V; (2)±IIK DC input diode current(VI <-0.5 or VI > VCC + 0.5V): 20mA; (3)±IOK DC output diode current(VO < -0.5 or VO > VCC + 0.5V): 50mA; (4)±IO DC output source or sink current(-0.5V < VO < VCC + 0.5V)-standard outputs: 25mA-bus driver outputs: 35mA; (5)±IGND, ±ICC DC VCC or GND current for types with-standard outputs/-bus driver outputs: 50/70mA; (6)Tstg storage temperature range: -65 to +150 °C; (7)power dissipation per package for temperature range of the 74LV595N: -40 to +125°C-plastic DIL(above +70°C derate linearly with 12mW/K)/-plastic mini-pack (SO)(above +70°C derate linearly with 8 mW/K)/-plastic shrink mini-pack (SSOP and TSSOP)(above +60°C derate linearly with 5.5 mW/K): 750/500/400mW.(1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under arecommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The input and output voltage ratings of the 74LV595N may be exceeded if the input and output current ratings are observed.)