The 'ABT16543 16-bit registered transceivers contain two sets of D-type latches for temporary storage of data flowing in either direction. The 'ABT16543 can be used as two 8-bit transceivers or one 16-bit transceiver. Separate latch-enable ( or) and output-enable ( or ) inputs are provided for each register to permit independent control in either direction of data flow.
The A-to-B enable () input must be low to enter data from A or to output data from B. If is low and is low, the A-to-B latches are transparent; a subsequent low-to-high transition of puts the A latches in the storage mode. With and both low, the 3-state B outputs are active and reflect the data present at the output of the A latches. Data flow from B to A is similar but requires using the,, and inputs.
To ensure the high-impedance state during power up or power down, 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.
The SN54ABT16543 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT16543 is characterized for operation from -40°C to 85°C.
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Status | ACTIVE |
SubFamily | Registered transceiver |
Technology Family | ABT |
VCC | 5.5 |
Bits | 16 |
Voltage | 5 |
F @ nom voltage | 150 |
tpd @ Nom Voltage | 5.1 |
IOL | 64 |
Rating | Military |
Operating temperature range | -55 to 125 |
Package Group | CFP|56 |
Package size: mm2:W x L (PKG) | See datasheet (CFP) |
Approx. price | |
Schmitt Trigger | No |