74VHCT14A| Datasheet

74VHCT14A, 74VHCT14AMTR, 74VHCT14ATTR

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74VHCT14A
HEX SCHMITT inverter
Features

High speed: tPD = 5.5ns (typ.) at VCC = 5V Low power dissipation: ICC = 2 uA (Max.) at TA = 25 C Typical hysteresis: Vh = 0.7V at VCC = 4.5V Power down protection on inputs & outputs Symmetrical output impedance: |IOH| = IOL = 8 mA (Min) Balanced propagation delays: tPLH tPHL Operating voltage range: VCC(Opr) = 4.5V to 5.5V Pin and function compatible with 74 series 14 Improved latch-up immunity Low noise: VOLP = 0.8V (Max.)
SO-14 TSSOP14

Description
The 74VHCT14A is an advanced high-speed CMOS HEX SCHMITT inverter fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. The internal circuit is composed of 3 stages including buffer output, which provides high noise immunity and stable output. Power down protection is provided on all inputs and outputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V since all inputs are equipped with TTL threshold. Pin configuration and function are the same as those of the 74VHC04 but the 74VHC14 has hysteresis. This together with its schmitt trigger function allows it to be used on line receivers with slow rise/fall input signals. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

Table 1. Device summary
Part number 74VHCT14AMTR 74VHCT14ATTR Package SO-14 TSSOP14 Packaging Tape and reel Tape and reel

May 2007

Rev 2

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