Datasheet Details
| Part number | CD54HC646 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 840.23 KB |
| Description | OCTAL BUS TRANSCEIVERS AND REGISTERS |
| Download | CD54HC646 Download (PDF) |
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| Part number | CD54HC646 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 840.23 KB |
| Description | OCTAL BUS TRANSCEIVERS AND REGISTERS |
| Download | CD54HC646 Download (PDF) |
|
|
|
/ordering information The CD54HC646 and CD74HCT646 consist of bus-transceiver circuits with 3-state outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers.
Data on the A or B bus is clocked into the registers on the low-to-high transition of the appropriate clock (CLKAB or CLKBA) input.
Figure 1 illustrates the four fundamental bus-management functions that can be performed with these devices.
CD54HC646, CD74HCT646 OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCHS278B – APRIL 2003 – REVISED APRIL 2003 D 2-V to 6-V VCC Operation (CD54HC646) D 4.5-V to 5.5-V VCC Operation (CD74HCT646) D Wide Operating Temperature Range of –55°C to 125°C D Balanced Propagation Delays and Transition Times D Standard Outputs Drive Up To 15 LS-TTL Loads D Significant Power Reduction Compared to LS-TTL Logic ICs D Inputs Are TTL-Voltage Compatible (CD74HCT646) D Independent Registers for A and B Buses D Multiplexed Real-Time and Stored Data D True Data Paths CD54HC646 .
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| Part Number | Description |
|---|---|
| CD54HC640 | Octal Three-State Bus Transceiver |
| CD54HC670 | 4x4 Register File |
| CD54HC688 | 8-Bit Magnitude Comparator |
| CD54HC00 | High-Speed CMOS Logic Quad 2-Input NAND Gate |
| CD54HC02 | High-Speed CMOS Logic Quad Two-Input NOR Gate |
| CD54HC03 | High-Speed CMOS Logic Quad 2-Input NAND Gate |
| CD54HC04 | Hex Inverter |
| CD54HC04F | Hex Inverter |
| CD54HC08 | Quadruple 2-Input AND Gates |
| CD54HC08F | Quadruple 2-Input AND Gates |