Part # 74VHC245 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Octal bus transceiver (3-state)

Part Details:

74VHC245 OCTAL BUS TRANSCEIVER (3-STATE) s HIGH SPEED: t PD = 4.0 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 CONTROL INPUTS SOP TSSOP s SYMMETRICAL OUTPUT IMPEDANCE:|IOH| = IOL = 8 mA (MIN) Table 1: Order Codes s BALANCED PROPAGATION DELAYS:tPLH tPHL PACKAGE T & R s OPERATING VOLTAGE RANGE: SOP 74VHC245MTR VCC(OPR) = 2V to 5.5V TSSOP 74VHC245TTR s PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 245 s IMPROVED LATCH-UP IMMUNITY direction of data transmission is determined by s LOW NOISE: VOLP = 0.9V (MAX.) DIR input. The enable input G can be used todisable the device so that the busses are DESCRIPTION effectively isolated. The 74VHC245 is an advanced high-speed All inputs and outputs are equipped with CMOS OCTAL BUS TRANSCEIVER (3-STATE) protection circuits against static discharge, giving fabricated with sub-micron silicon gate and them 2KV ESD immunity and transient excess double-layer metal wiring C2MOS technology. voltage. This IC is intended for two-way asynchronous All floating bus terminals during High Z State must communication between data busses; the be held HIGH or LOW. Figure 1: Pin Connection And IEC Logic Symbols Rev. 6 November 2004 1/12

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74VHC245.pdf Datasheet