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M54HCT640 - Octal Bus Transceiver

General Description

The M54/74HCT245, HCT640 and HCT643 utilise silicon gate C2MOS technology to achive operating speeds eqivalent to LSTTL devices.

Along with the low power dissipation and high noise immunity of standad CMOS integrated circuit, it possesses the capability to drive 15 LSTTL loads.

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Other Datasheets by STMicroelectronics

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M54HCT643 Octal Bus Transceiver
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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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M54/74HCT245/640/643 M54/74HCT245/640/643 OCTAL BUS TRANSCEIVER (3-STATE): HCT245 NON INVERTING HCT640 INVERTING, HCT643 INVERTING/NON INVERTING . . . . . . . HIGH SPEED tPD = 10 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION o ICC = 4 µA (MAX.) at TA = 25 C COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.) VIL = 0.8V (MAX.) OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 6 mA (MIN) BALANCED PROPAGATION DELAYS tPLH = tPHL PIN AND FUNCTION COMPATIBLE WITH 54/74LS245/640/643 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) DESCRIPTION The M54/74HCT245, HCT640 and HCT643 utilise silicon gate C2MOS technology to achive operating speeds eqivalent to LSTTL devices.