# TC74HC237AP/AF

## Features
️· High speed: tpd = 12 ns (typ.) at VCC = 5 V
️· Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
️· High noise immunity: VNIH = VNIL = 28% VCC (min)
️· Output drive capability: 10 LSTTL loads
️· Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
️· Balanced propagation delays: tpLH ∼ − tpHL
️· Wide operating voltage range: VCC (opr) = 2~6 V
️· Pin and function compatible with 74LS237

## Operating Ranges
️· Supply voltage: VCC: 2~6 V
️· Operating temperature: Topr: −40~85 °C

## Electrical Characteristics (DC)
️· High-level input voltage: VIH: 1.50V (VCC = 2.0V), 3.15V (VCC = 4.5V), 4.20V (VCC = 6.0V)
️· Low-level input voltage: VIL: 0.50V (VCC = 2.0V), 1.35V (VCC = 4.5V), 1.80V (VCC = 6.0V)
️· High-level output voltage: VOH (IOH = -20μA): 1.9V(VCC = 2.0V), 4.4V (VCC = 4.5V), 5.9V (VCC = 6.0V)

️· Low-level output voltage: VOL (IOL = 20μA): 0.1V(VCC = 2.0V), 0.1V (VCC = 4.5V), 0.1V (VCC = 6.0V)

## Timing Requirements
️· Minimum pulse width (GL): 75ns(VCC = 2.0V), 15ns (VCC = 4.5V), 13ns (VCC = 6.0V)
️· Minimum set-up time (A, B, C-GL): 50ns(VCC = 2.0V), 10ns (VCC = 4.5V), 9ns (VCC = 6.0V)
️· Minimum hold time (A, B, C-GL): 25ns(VCC = 2.0V), 5ns (VCC = 4.5V), 5ns (VCC = 6.0V)

## Package Dimensions
️· DIP16-P-300-2.54A: 1.00 g (typ.)
️· SOP16-P-300-1.27A: 0.18 g (typ.)

## Truth Table
️· Inputs: GL, 2G, G1, C, B, A
️· Outputs: Y0-Y7
️· Outputs are low depending on the input address when enabled.

## Absolute Maximum Ratings
️· Supply voltage range: -0.5 to 7 V
️· Storage temperature: -65 to 150°C