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74ABT16501CMTDF ?N/a27avai18-Bit Universal Bus Transceivers with 3-STATE Outputs
74ABT16501CSSCFAIN/a263avai18-Bit Universal Bus Transceivers with 3-STATE Outputs
74ABT16501CSSCXFAIN/a237avai18-Bit Universal Bus Transceivers with 3-STATE Outputs


74ABT16501CSSC ,18-Bit Universal Bus Transceivers with 3-STATE OutputsFeaturesdevice operates in the transparent mode when LEAB isHIGH. When LEAB is LOW, the A data is l ..
74ABT16501CSSCX ,18-Bit Universal Bus Transceivers with 3-STATE Outputs74ABT16501 18-Bit Universal Bus Transceivers with 3-STATE OutputsJanuary 1995Revised January 199974 ..
74ABT16541 ,16-Bit Buffer/Line Driver with TRI-STATE Outputs
74ABT16541CMTDX ,16-Bit Buffer/Line Driver with 3-STATE OutputsFunctional DescriptionThe ABT16541 contains sixteen non-inverting buffers with3-STATE outputs. The ..
74ABT16541CSSC ,16-Bit Buffer/Line Driver with 3-STATE OutputsFeaturesThe ABT16541 contains sixteen non-inverting buffers with

74ABT16501CMTD-74ABT16501CSSC-74ABT16501CSSCX
18-Bit Universal Bus Transceivers with 3-STATE Outputs
74ABT16501 18-Bit Universal Bus Transceivers with 3-STATE Outputs January 1995 Revised January 1999 74ABT16501 18-Bit Universal Bus Transceivers with 3-STATE Outputs plementary (OEAB is active HIGH and OEBA is active General Description LOW). The ABT16501 18-bit universal bus transceiver combines To ensure the high-impedance state during power up or D-type latches and D-type flip-flops to allow data flow in power down, OE inputs should be tied to GND through a transparent, latched, and clocked modes. pulldown resistor; the minimum value of the resistor is Data flow in each direction is controlled by output-enable determined by the current-sourcing capability of the driver. (OEAB and OEBA), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. For A-to-B data flow, the Features device operates in the transparent mode when LEAB is HIGH. When LEAB is LOW, the A data is latched if CLKAB � Combines D-Type latches and D-Type flip-flops for oper- ation in transparent, latched, or clocked mode is held at a HIGH or LOW logic level. If LEAB is LOW, the A bus data is stored in the latch/flip-flop on the LOW-to-HIGH � Flow-through architecture optimizes PCB layout transition of CLKAB. Output-enable OEAB is active-high. � Guaranteed latch-up protection When OEAB is HIGH, the outputs are active. When OEAB � High impedance glitch free bus loading during entire is LOW, the outputs are in the high-impedance state. power up and power down cycle Data flow for B to A is similar to that of A to B but uses � Non-destructive hot insertion capability OEBA, LEBA, and CLKBA. The output enables are com- Ordering Code: Order Number Package Number Package Description 74ABT16501CSSC MS56A 56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300” Wide 74ABT16501CMTD MTD56 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Devices also available in Tape or Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table (Note 1) Inputs Output Pin Assignment for SSOP OEAB LEAB CLKAB A B L XXX Z HH X L L HH X H H HL ↑ LL HL ↑ HH HL H X B (Note 2) 0 HL L X B (Note 3) 0 Note 1: A-to-B data flow is shown: B-to-A flow is similar but uses OEBA, LEBA, and CLKBA. Note 2: Output level before the indicated steady-state input conditions were established. Note 3: Output level before the indicated steady-state input conditions were established, provided that CLKAB was HIGH before LEAB went LOW. © 1999 DS011690.prf
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