The 74LVC543A is a high-performance, low-power, low-voltage, Si-gate CMOS device, superior to most advanced CMOS compatible TTL families.
The 74LVC543A is an octal registered transceiver containing two sets of D-type latches for temporary storage of the data flow in either direction. Separate latch enable inputs (pins LEAB and LEBA ) and output enable inputs (pins OEAB and OEBA ) are provided for each register to permit independent control of inputting and outputting in either direction of the data flow.
The 74LVC543A contains eight D-type latches, with separate inputs and controls for each set. For data flow from pins A to B, for example, the A to B enable input (pin EAB ) must be LOW in order to enter data from pins A0 to A7 or take data from pins B0 to B7, as indicated in the ?Function table?. With pin EAB LOW, a LOW signal on the A to B latch enable input (pin LEAB ) makes the A to B latches transparent; a subsequent LOW-to-HIGH transition on pin LEAB puts the A data into the latches where it is stored and the B outputs no longer change with the A inputs. With pins EAB and OEAB both LOW, the 3-state B output buffers are active and display the data present at the outputs of the A latches.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| 74LVC543ABQ | 74LVC543ABQ,118 | 9352 753 78118 | Volume production | SOT815-1
(DHVQFN24) | Reel Pack, SMD, 13" | Standard Marking | |
| 74LVC543AD | 74LVC543AD,112 | 9352 458 50112 | Volume production | SOT137 | Tube | Standard Marking | |
| 74LVC543AD | 74LVC543AD,118 | 9352 458 50118 | Volume production | SOT137 | Reel Pack, SMD, 13" | Standard Marking | |
| 74LVC543ADB | 74LVC543ADB,112 | 9352 458 60112 | Volume production | SOT340-1
(SSOP24) | Tube | Standard Marking | |
| 74LVC543ADB | 74LVC543ADB,118 | 9352 458 60118 | Volume production | SOT340-1
(SSOP24) | Reel Pack, SMD, 13" | Standard Marking | |
| 74LVC543APW | 74LVC543APW,112 | 9352 458 70112 | Volume production | SOT355-1
(TSSOP24) | Tube | Standard Marking | |
| 74LVC543APW | 74LVC543APW,118 | 9352 458 70118 | Volume production | SOT355-1
(TSSOP24) | Reel Pack, SMD, 13" | Standard Marking |
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| 74LVC543ABQ | 74LVC543ABQ,118 | 74LVC543ABQ |
| Always Pb-free | 3,87 | 2,58E+08 | 1 | |
| 74LVC543AD | 74LVC543AD,112 | 74LVC543AD |
| week 13, 2005 | 3,87 | 2,58E+08 | 1 | |
| 74LVC543AD | 74LVC543AD,118 | 74LVC543AD |
| week 13, 2005 | 3,87 | 2,58E+08 | 1 | |
| 74LVC543ADB | 74LVC543ADB,112 | 74LVC543ADB |
| week 12, 2005 | 3,87 | 2,58E+08 | 1 | |
| 74LVC543ADB | 74LVC543ADB,118 | 74LVC543ADB |
| week 12, 2005 | 3,87 | 2,58E+08 | 1 | |
| 74LVC543APW | 74LVC543APW,112 | 74LVC543APW |
| week 10, 2005 | 3,87 | 2,58E+08 | 1 | |
| 74LVC543APW | 74LVC543APW,118 | 74LVC543APW |
| week 10, 2005 | 3,87 | 2,58E+08 | 1 |
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC543ABQ | 9352 753 78118 | 74LVC543ABQ,118 | not available | |||||||
| 74LVC543AD | 9352 458 50112 | 74LVC543AD,112 | 0.5500 | not available | ||||||
| 74LVC543AD | 9352 458 50118 | 74LVC543AD,118 | 0.5500 | not available | ||||||
| 74LVC543ADB | 9352 458 60112 | 74LVC543ADB,112 | 0.5500 | NA | AVNET ELECTRONICS MARKETING | 1,202 | 11/19/2009 | Buy online | not available | |
| 74LVC543ADB | 9352 458 60118 | 74LVC543ADB,118 | 0.5500 | NA | AVNET ELECTRONICS MARKETING | 601 | 11/19/2009 | Buy online | not available | |
| ASIA | SACL - Hong Kong/China | yes | 1000 | 11/20/2009 | Buy online | |||||
| 74LVC543APW | 9352 458 70112 | 74LVC543APW,112 | 0.5500 | not available | ||||||
| 74LVC543APW | 9352 458 70118 | 74LVC543APW,118 | 0.5500 | Order samples |
| Type number | Package | Description | Propagation Delay(ns) | Voltage | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|
| 74LVC543ABQ | SOT815-1
(DHVQFN24) | 3.3V Latched Transceiver; Non-Inverting (3-State) | 3.3@3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC543AD | SOT137
| 3.3V Latched Transceiver; Non-Inverting (3-State) | 3.3@3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC543ADB | SOT340-1
(SSOP24) | 3.3V Latched Transceiver; Non-Inverting (3-State) | 3.3@3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC543APW | SOT355-1
(TSSOP24) | 3.3V Latched Transceiver; Non-Inverting (3-State) | 3.3@3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
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