ordering information NC – No internal connection The ’HC646 devices 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.
us-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 the ’HC646 devices. Output-enable (OE) and direction-control (DIR) inputs control the transceiver functions. In the transceiver mode, data present at the high-impedance port may be .
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | SN74HC640 |
Texas Instruments |
OCTAL BUS TRANSCEIVERS | |
2 | SN74HC645 |
Texas Instruments |
OCTAL BUS TRANSCEIVERS | |
3 | SN74HC623 |
Texas Instruments |
OCTAL BUS TRANSCEIVERS | |
4 | SN74HC652 |
Texas Instruments |
OCTAL BUS TRANSCEIVERS/REGISTERS | |
5 | SN74HC682 |
Texas Instruments |
8-BIT MAGNITUDE COMPARATORS | |
6 | SN74HC684 |
Texas Instruments |
8-BIT MAGNITUDE COMPARATORS | |
7 | SN74HC688 |
Texas Instruments |
8-BIT IDENTITY COMPARATORS | |
8 | SN74HC00 |
Texas Instruments |
Quadruple 2-Input Positive-NAND Gates | |
9 | SN74HC00-Q1 |
Texas Instruments |
QUADRUPLE 2-INPUT POSITIVE-NAND GATE | |
10 | SN74HC00D |
Texas Instruments |
Quadruple 2-Input Positive-NAND Gates | |
11 | SN74HC00N |
Texas Instruments |
Quadruple 2-Input Positive-NAND Gates | |
12 | SN74HC02 |
Texas Instruments |
Quadruple 2-Input Positive-NOR Gates |