Part # 74VHCT244A datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Octal bus buffer with 3 state outputs (non inverted)

Part Details:

74VHCT244A OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) s HIGH SPEED: t PD = 5.4 ns (TYP.) at VCC = 5V s LOW POWER DISSIPATION:ICC = 4 µA (MAX.) at TA=25°C s COMPATIBLE WITH TTL OUTPUTS:VIH = 2V (MIN.), VIL = 0.8V (MAX) s POWER DOWN PROTECTION ON INPUTS SOP TSSOP & OUTPUTS s SYMMETRICAL OUTPUT IMPEDANCE:|I Table 1: Order Codes OH| = IOL = 8 mA (MIN) s BALANCED PROPAGATION DELAYS: PACKAGE T & R tPLH tPHL SOP 74VHCT244AMTR s OPERATING VOLTAGE RANGE:V TSSOP 74VHCT244ATTR CC(OPR) = 4.5V to 5.5V s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 244 This device is designed to be used with 3 state s IMPROVED LATCH-UP IMMUNITY memory address drivers, etc.Power down protection is provided on all inputs s LOW NOISE: VOLP = 0.9V (MAX.) and outputs and 0 to 7V can be accepted oninputs with no regard to the supply voltage. This DESCRIPTION device can be used to interface 5V to 3V since all The 74VHCT244A is an advanced high-speed inputs are equipped with TTL threshold. CMOS OCTAL BUS BUFFER (3-STATE) All inputs and outputs are equipped with fabricated with sub-micron silicon gate and protection circuits against static discharge, giving double-layer metal wiring C2MOS technology. them 2KV ESD immunity and transient excess G enable input governs four BUS BUFFERs. voltage. Figure 1: Pin Connection And IEC Logic Symbols Rev. 4

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74VHCT244A.pdf Datasheet