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HD74HC640 Datasheet(PDF) 3 Page - Renesas Technology Corp |
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HD74HC640 Datasheet(HTML) 3 Page - Renesas Technology Corp |
3 / 13 page Rev.2.00 Mar 30, 2006 page 1 of 10 HD74HC640, HD74HC643 Octal Bus Transceivers (with 3-state outputs) REJ03D0637-0200 (Previous ADE-205-517) Rev.2.00 Mar 30, 2006 Description Each device has an active enable G and a direction control input, DIR. When DIR is high, data flows from the A inputs to the B outputs. When DIR is low, data flows from the B inputs to the A outputs. The HD74HC640 transfers inverted data from one bus to other and the HD74HC643 transfers inverted data from the A bus to the B bus and true data from the B bus to the A bus. Features • High Speed Operation: t pd = 12 ns typ (CL = 50 pF) • High Output Current: Fanout of 15 LSTTL Loads • Wide Operating Voltage: V CC = 2 to 6 V • Low Input Current: 1 µA max • Low Quiescent Supply Current: I CC (static) = 4 µA max (Ta = 25°C) • Ordering Information Part Name Package Type Package Code (Previous Code) Package Abbreviation Taping Abbreviation (Quantity) HD74HC640P DILP-20 pin PRDP0020AC-B (DP-20NEV) P — HD74HC640FPEL SOP-20 pin (JEITA) PRSP0020DD-B (FP-20DAV) FP EL (2,000 pcs/reel) HD74HC640RPEL HD74HC643RPEL SOP-20 pin (JEDEC) PRSP0020DC-A (FP-20DBV) RP EL (1,000 pcs/reel) Note: Please consult the sales office for the above package availability. Function Table Control Inputs Operation G DIR HD74HC640 HD74HC643 L L B data to A bus B data to A bus L H A data to B bus A data to B bus H X Isolation Isolation H : high level L : low level X : irrelevant |
Similar Part No. - HD74HC640_15 |
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Similar Description - HD74HC640_15 |
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