Part # 74VHC244 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

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

Part Details:

74VHC244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED) s HIGH SPEED: t PD = 3.9 ns (TYP.) at VCC = 5V s LOW POWER DISSIPATION:ICC = 4 µA (MAX.) at TA=25°C s HIGH NOISE IMMUNITY:VNIH = VNIL = 28% VCC (MIN.) s POWER DOWN PROTECTION ON INPUTS s SYMMETRICAL OUTPUT IMPEDANCE: SOP TSSOP |IOH| = IOL = 8 mA (MIN) s BALANCED PROPAGATION DELAYS: Table 1: Order Codes tPLH tPHL s OPERATING VOLTAGE RANGE: PACKAGE T & R VCC(OPR) = 2V to 5.5V SOP 74VHC244MTR s PIN AND FUNCTION COMPATIBLE WITH TSSOP 74VHC244TTR 74 SERIES 244 s IMPROVED LATCH-UP IMMUNITY s LOW NOISE: VOLP = 0.9V (MAX.) Power down protection is provided on all inputsand 0 to 7V can be accepted on inputs with no DESCRIPTION regard to the supply voltage. This device can be The 74VHC244 is an advanced high-speed used to interface 5V to 3V. 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 output enable governs four BUS BUFFERs. voltage. This device is designed to be used with 3 statememory address drivers, etc. Figure 1: Pin Connection And IEC Logic Symbols Rev. 3 November 2004

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74VHC244.pdf Datasheet