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74ALVCH16543
General description
The 74ALVCH16543 is a dual octal registered transceiver. Each section contains two sets of D-type latches for temporary storage of the data flow in either direction.
Separate latch enable (nLEAB, nLEBA) and output enable (nOEAB, nOEBA) inputs are provided for each register to permit independent control in either direction of the data flow.
The ?16543? contains two sections each consisting of two sets of eight D-type latches with separate inputs and controls for each set. For data flow from A to B, for example, the A-to-B enable (nEAB, where n equals 1 or 2) inputs must be LOW in order to enter data from nA0 to nA7, or take data from nB0 to nB7, as indicated in the function table. With nEAB LOW, a LOW signal on the A-to-B latch enable (nLEAB) input makes the A-to-B latches transparent; a subsequent LOW-to-HIGH transition of the nLEAB signal stores the A data into the latches. With nEAB and nOEAB both LOW, the 3-state B output buffers are active and display the data present at the output of the A latches. Similarly, the nEBA, nLEBA and nOEBA signals control the data flow from B-to-A.
Active bus hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
Features
- In accordance with JEDEC standard no 8-1A
- CMOS low power consumption
- Direct interface with TTL levels
- MULTIBYTEÔ flow-through pin-out architecture
- 16-bit transceiver with D-type latch
- Combines 16245 and 16373 type functions in one chip
- Back-to-back registers for storage
- Output drive capability 50 W transmission lines at 85 °C
- Separate controls for data flow in each direction
- All data inputs have bus hold
- 3-state non-inverting outputs for bus oriented applications
- Current drive ±24 mA at 3.0 V.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74ALVCH16543DGG | 74ALVCH16543DG | 9352 625 44112 | Volume production | SOT364-1
(TSSOP56) | Tube | Standard Marking | 74ALVCH16543DGG
| week 2, 2006 |
| 74ALVCH16543DGG | 74ALVCH16543DG-T | 9352 625 44118 | Volume production | SOT364-1
(TSSOP56) | Reel Pack, SMD, 13" | Standard Marking | 74ALVCH16543DGG
| week 2, 2006 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74ALVCH16543DGG | 9352 625 44112 | 1.6700 | Order samples | |||||
| 74ALVCH16543DGG | 9352 625 44118 | 1.6700 | not available |
Technical documents
Application Notes
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74ALVCH16543DGG | SOT364-1
(TSSOP56) | 2.5/3.3V 16-Bit Latched Transceiver; Non-Inverting with Bus Hold (3-State) | 3.8@3.3V | 1.2-3.6 | 56 | Low Power or Battery Applications | TTL | +/- 24 mA |
Similar products
74ALVCH16543 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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