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74LVXC4245MTCX датащи(PDF) 1 Page - Fairchild Semiconductor |
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74LVXC4245MTCX датащи(HTML) 1 Page - Fairchild Semiconductor |
1 / 8 page © 2003 Fairchild Semiconductor Corporation DS012009 www.fairchildsemi.com February 1994 Revised October 2003 74LVXC4245 8-Bit Dual Supply Configurable Voltage Interface Transceiver with 3-STATE Outputs General Description The LVXC4245 is a 24-pin dual-supply, 8-bit configurable voltage interface transceiver suited for PCMCIA and other real time configurable I/O applications. The VCCA pin accepts a 5V supply level. The “A” Port is a dedicated 5V port. The VCCB pin accepts a 3V-to-5V supply level. The “B” Port is configured to track the VCCB supply level respectively. A 5V level on the VCC pin will configure the I/O pins at a 5V level and a 3V VCC will configure the I/O pins at a 3V level. This device will allow the VCCB voltage source pin and I/O pins on the “B” Port to float when OE is HIGH. This feature is necessary to buffer data to and from a PCMCIA socket that permits PCMCIA cards to be inserted and removed during normal operation. Features s Bidirectional interface between 5V and 3V-to-5V buses s Control inputs compatible with TTL level s Outputs source/sink up to 24 mA s Guaranteed simultaneous switching noise level and dynamic threshold performance s Implements patented EMI reduction circuitry s Flexible VCCB operating range s Allows B Port and VCCB to float simultaneously when OE is HIGH s Functionally compatible with the 74 series 245 Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol Pin Descriptions Connection Diagram Order Number Package Number Package Description 74LVXC4245WM M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74LVXC4245QSC MQA24 24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide 74LVXC4245MTC MTC24 24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Pin Names Description OE Output Enable Input T/R Transmit/Receive Input A0–A7 Side A Inputs or 3-STATE Outputs B0–B7 Side B Inputs or 3-STATE Outputs |
Аналогичный номер детали - 74LVXC4245MTCX |
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Аналогичное описание - 74LVXC4245MTCX |
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