CD74HCT245M96 ,High Speed CMOS Logic Non-Inverting Octal-Bus Transceiver with 3-State OutpusMaximum Ratings Thermal InformationoDC Supply Voltage, V . . . . . . . . . . . . . . . . . . . . . ..
CD74HCT251E ,High Speed CMOS Logic 8-Input Multiplexer, 3-StateFeatures Description• Selects One of Eight Binary Data Inputs The ’HC251 and ’HCT251 are 8-channel ..
CD74HCT251M ,High Speed CMOS Logic 8-Input Multiplexer, 3-StateCD54HC251, CD74HC251,CD54HCT251, CD74HCT251Data sheet acquired from Harris SemiconductorSCHS169CHig ..
CD74HCT251M96 ,High Speed CMOS Logic 8-Input Multiplexer, 3-StateMaximum Ratings Thermal InformationoDC Supply Voltage, V . . . . . . . . . . . . . . . . . . . . . ..
CD74HCT253E ,High Speed CMOS Logic Dual 4-Input MultiplexersMaximum Ratings Thermal InformationoDC Supply Voltage, V . . . . . . . . . . . . . . . . . . . . . ..
CD74HCT253M ,High Speed CMOS Logic Dual 4-Input MultiplexersFeatures Description• Common Select Inputs The CD74HC253 and CD74HCT253 are dual 4-to-1 lineselecto ..
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CD74HCT245E-CD74HCT245M-CD74HCT245M96
High Speed CMOS Logic Non-Inverting Octal-Bus Transceiver with 3-State Outpus
CD54HC245, CD74HC245, CD54HCT245, CD74HCT245 SCHS119A High-Speed CMOS Logic Octal-Bus Transceiver, November 1997 - Revised May 2003 Three-State, Non-Inverting Features Description • Buffered Inputs The CD54HC245, CD54HCT245, and CD74HC245, CD74HCT245 are high-speed octal three-state bidirectional • Three-State Outputs [ /Title transceivers intended for two-way asynchronous communication between data buses. They have high drive (CD54 • Bus Line Driving Capability current outputs which enable high-speed operation while HC245 • Typical Propagation Delay (A to B, B to A) 9ns at V CC driving large bus capacitances. They provide the low power o , = 5V, C = 15pF, T = 25 C L A consumption of standard CMOS circuits with speeds and CD54 drive capabilities comparable to that of LSTTL circuits. • Fanout (Over Temperature Range) HCT24 - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads The CD54HC245, CD54HCT245, CD74HC245 and 5, - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads CD74HCT245 allow data transmission of the B bus or from the B bus to the A bus. The logic level at the direction input CD74 o o • Wide Operating Temperature Range . . . -55 C to 125 C (DIR) determines the direction. The output enable input HC245 (OE), when high, puts the I/O ports in the high-impedance • Balanced Propagation Delay and Transition Times , state. • Significant Power Reduction Compared to LSTTL CD74 The HC/HCT245 is similar in operation to the HC/HCT640 Logic ICs HCT24 and the HC/HCT643. • HC Types 5) - 2V to 6V Operation Ordering Information /Sub- = 30%, N = 30% of V - High Noise Immunity: N IL IH CC ject at V = 5V TEMP. CC o (High PART NUMBER RANGE ( C) PACKAGE • HCT Types Speed CD54HC245F3A -55 to 125 20 Ld CERDIP - 4.5V to 5.5V Operation - Direct LSTTL Input Logic Compatibility, CD54HCT245F3A -55 to 125 20 Ld CERDIP V = 0.8V (Max), V = 2V (Min) IL IH CD74HC245E -55 to 125 20 Ld PDIP ≤ 1μA at V , V - CMOS Input Compatibility, I l OL OH CD74HC245M -55 to 125 20 Ld SOIC CD74HC245M96 -55 to 125 20 Ld SOIC Pinout CD74HCT245E -55 to 125 20 Ld PDIP CD54HC245, CD54HCT245 (CERDIP) CD74HCT245M -55 to 125 20 Ld SOIC CD74HC245, CD74HCT245 (PDIP, SOIC) CD74HCT245M96 -55 to 125 20 Ld SOIC TOP VIEW NOTE: When ordering, use the entire part number. The suffix 96 denotes tape and reel. DIR 1 20 V CC A0 2 19 OE A1 3 18 B0 A2 B1 4 17 A3 5 16 B2 A4 6 15 B3 A5 14 B4 7 A6 8 13 B5 A7 9 12 B6 GND 10 11 B7 CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © 2003, 1
