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74ALVCH16646
General description
The 74ALVCH16646 consists of 16 non-inverting bus transceiver circuits with 3-State outputs, D-type flip-flops and control circuitry arranged for multiplexed transmission of data directly from the internal registers. Data on the ?A? or ?B? bus will be clocked in the internal registers, as the appropriate clock (CPAB or CPBA) goes to a HIGH logic level. Output enable (OE) and direction (DIR) inputs are provided to control the transceiver function. In the transceiver mode, data present at the high-impedance port may be stored in either the ?A? or ?B? registeror in both. The select source inputs (SAB and SBA) can multiplex stored and real-time (transparent mode) data. The direction (DIR) input determines which bus will receive data when OE is active (LOW). In the isolation mode (OE = HIGH)?A? data may be stored in the ?B? register and/or ?B? data may be stored in the ?A? register.
When an output function is disabled, the input function is still enabled and may be used to store and transmit data. Only one of the two buses?A? or ?B? may be driven at a time.
To ensure the high impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
Features
- Complies with JEDEC standard no. 8-1A
- CMOS low power consumption
- MULTIBYTEÔ flow-through pin-out architecture
- Low inductancemultiple VCC and ground pins for minimum noise and ground bounce
- Direct interface with TTL levels
- Current drive ? 24 mA at 3.0 V
- Output drive capability 50W transmission lines @ 85 °C
- All inputs have bushold circuitry
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74ALVCH16646DGG | 74ALVCH16646DG | 9352 624 21112 | Volume production | SOT364-1
(TSSOP56) | Tube | Standard Marking | 74ALVCH16646DGG
| week 2, 2006 |
| 74ALVCH16646DGG | 74ALVCH16646DG-T | 9352 624 21118 | Volume production | SOT364-1
(TSSOP56) | Reel Pack, SMD, 13" | Standard Marking | 74ALVCH16646DGG
| week 2, 2006 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74ALVCH16646DGG | 9352 624 21112 | 1.6700 | Order samples | |||||
| 74ALVCH16646DGG | 9352 624 21118 | 1.6700 | Order samples |
Technical documents
Application Notes
Parametrics/similar products
| Type number | Package | Description | Fmax(MHz) | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|---|
| 74ALVCH16646DGG | SOT364-1
(TSSOP56) | 2.5/3.3V 16-Bit Transceiver/Register with Bus Hold (3-State) | 320 | 2.6@3.3V | 2.3-3.6 | 56 | Low Power or Battery Applications | TTL | +/- 24 mA |
Similar products
74ALVCH16646 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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