0
ACTIVE
Number of channels |
12 |
Technology family |
ALVC |
Supply voltage (min) (V) |
1.65 |
Supply voltage (max) (V) |
3.6 |
Input type |
Standard CMOS |
Output type |
3-State |
Clock frequency (max) (MHz) |
150 |
IOL (max) (mA) |
24 |
IOH (max) (mA) |
-24 |
Supply current (max) (µA) |
40 |
Features |
Balanced outputs, Bus-hold, Flow-through pinout, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns) |
Operating temperature range (°C) |
-40 to 85 |
Rating |
Catalog |
SSOP (DL)-56-190.647 mm² 18.42 x 10.35
Widebus, EPIC are trademarks of Texas Instruments.
This 12-bit to 24-bit multiplexed D-type latch is designed for 1.65-V to 3.6-V VCC operation.
The SN74ALVCH16260 is used in applications in which two separate data paths must be multiplexed onto, or demultiplexed from, a single data path. Typical applications include multiplexing and/or demultiplexing address and data information in microprocessor or bus-interface applications. This device also is useful in memory-interleaving applications.
Three 12-bit I/O ports (A1-A12, 1B1-1B12, and 2B1-2B12) are available for address and/or data transfer. The output-enable (OE1B, OE2B, and OEA) inputs control the bus transceiver functions. The OE1B and OE2B control signals also allow bank control in the A-to-B direction.
Address and/or data information can be stored using the internal storage latches. The latch-enable (LE1B, LE2B, LEA1B, and LEA2B) inputs are used to control data storage. When the latch-enable input is high, the latch is transparent. When the latch-enable input goes low, the data present at the inputs is latched and remains latched until the latch-enable input is returned high.
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 capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN74ALVCH16260 is characterized for operation from 40°C to 85°C.
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