SN74LV157ADR

The ’LV157A devices are quadruple 2-line to 1-line data selectors/multiplexers designed for 2-V to 5.5–VCC operation. These devices contain inverters and drivers to supply full data selection to the four output gates. A separate strobe (G̅) input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The ’LV157A devices present true data. These devices are fully specified for partial-power-down applications using IOFF. The IOFF circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.

Key features

• Supply voltage operating range: 2V~5.5V
• Maximum propagation delay tpd of 7.5ns at 5V supply voltage
• Typical output ground bounce VOLP less than 0.8V at Vcc, ambient temperature 25℃
• Typical output high-level undershoot VOHV greater than 2.3V at Vcc, ambient temperature 25℃
• Built-in Ioff circuitry supporting partial power-down operation
• Latch-up performance exceeds 100mA, compliant with JESD 78 Class II specification
• ESD protection compliant with JESD 22: Human Body Model 2000V (A114-A), Machine Model 200V (A115-A), Charged Device Model 1000V (C101)
• Maximum ratings: supply voltage range -0.5V~7V, input voltage range -0.5V~7V, output voltage range (HIGH/LOW state) -0.5V~Vcc+0.5V, output voltage range (power-down state) -0.5V~7V, input clamp current -20mA (VI<0), output clamp current -50mA (VO<0), continuous output current ±25mA (VO from 0 to Vcc), Vcc or GND continuous current ±50mA, storage temperature range -65℃~150℃
• Thermal resistance by package: D package 73℃/W, DB package 82℃/W, DGV package 120℃/W, NS package 64℃/W, PW package 108℃/W
• All unused inputs must be tied to Vcc or GND to ensure proper device operation