The 'AHCT16374 devices are 16-bit edge-triggered D-type flip-flops with 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
These devices can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive transition of the clock (CLK) input, the Q outputs of the flip-flop take on the logic levels at the data (D) inputs.
A buffered output-enable (OE\) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without need for interface or pullup components.
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.
OE\ does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
The SN54AHCT16374 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AHCT16374 is characterized for operation from -40°C to 85°C.
EPIC and Widebus are trademarks of Texas Instruments Incorporated.
Status | ACTIVE |
SubFamily | D-type flip-flop |
Technology Family | AHCT |
VCC | 5.5 |
Bits | 16 |
Voltage | 5 |
F @ nom voltage | 70 |
ICC @ nom voltage | 0.04 |
tpd @ Nom Voltage | 11.5 |
3-state output | Yes |
Rating | Catalog |
Operating temperature range | -40 to 85 |
Package Group | SSOP|48 |
Package size: mm2:W x L (PKG) | [pf]48SSOP[/pf]: 164 mm2: 10.35 x 15.88 (SSOP|48) |
Approx. price | 0.71 | 1ku |