74LV138N

Number of Bits :
Number of Lines (Input / Output) :
Propagation Delay Time :
Maximum Operating Temperature : + 125 C
Supply Voltage - Max : 5.5 V
Product : Decoder / Demultiplexer
Packaging : Tube
Mounting Style : Through Hole
Package / Case : PDIP-16
Supply Voltage - Min : 1 V
Logic Family : LV


Description

The 74LV138N belongs to 74LV138 family which is a low-voltage Si-gate CMOS device that is pin and function compatible with 74HC/HCT138 and the 74LV138 accepts three binary weighted address inputs (A0, A1, A2) and when enabled, provide 8 mutually exclusive active LOW outputs (Y0 to Y7). This multiple enable function allows easy parallel expansion of the 74LV138 to a 1-of-32 (5 lines to 32 lines) decoder with just four 74LV138 ICs and one inverter. The 74LV138 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Unused enable inputs must be permanently tied to their appropriate active HIGH or LOW state. The 74LV138N features three enable inputs: two active LOW (E1, and E2) and one active HIGH (E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH. The 74LV138 is identical to the 74LV238 but has non-inverting (true) outputs.

The features of 74LV138N can be summarized as (1)wide operating voltage: 1.0 to 5.5 V; (2)optimized for low voltage applications: 1.0 to 3.6 V; (3)accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V; (4)typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, Tamb = 25°C; (5)typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, Tamb = 25°C; (6)demultiplexing capability; (7)multiple input enable for easy expansion; (8)ideal for memory chip select decoding; (9)active low mutually exclusive outputs; (10)output capability: standard; (11)ICC category: MSI.

The absolute maximum ratings of 74LV138N are (1)VCC DC supply voltage: -0.5 to +7.0V; (2)±IIK DC input diode current(VI < -0.5 or VI > VCC + 0.5V): 20 mA; (3)±IOK DC output diode current(VO < -0.5 or VO > VCC + 0.5V): 50 mA; (4)±IO DC output source or sink current- standard outputs(-0.5V < VO < VCC + 0.5V): 25 mA; (5)±IGND, ±ICC DC VCC or GND current for types with-standard outputs: 50 mA; (6)Tstg storage temperature range of the 74LV138N: -65 to +150 °C; (7)Ptot power dissipation per package for temperature range: -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 74LV138N at these or any other conditions beyond those indicated under "recommended 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 may be exceeded if the input and output current ratings are observed.).