These 8-bit flip-flops feature 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.
The eight flip-flops of the SN54ABT374 and SN74ABT374A are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels set up at the data (D) inputs.
A buffered output-enable () input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components. 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.
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 SN54ABT374 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT374A is characterized for operation from -40°C to 85°C.
Products containing the "SN74ABT374A" keyword are: SN74ABT374ADBR , SN74ABT374ADBR , SN74ABT374ADBR AB374A , SN74ABT374ADBRG4 , SN74ABT374ADW , SN74ABT374ADW , SN74ABT374ADW(ABT374) , SN74ABT374ADWE4 , SN74ABT374ADWR , SN74ABT374ADWR , SN74ABT374ADWR/ABT374A , SN74ABT374ADWRE4 , SN74ABT374ADWRE4 , SN74ABT374ADWRG4 , SN74ABT374ADWRG4 , SN74ABT374AN , SN74ABT374AN , SN74ABT374ANS , SN74ABT374ANSE4 , SN74ABT374ANSR
EPIC-IIB is a trademark of Texas Instruments Incorporated.
Status | ACTIVE |
SubFamily | D-type flip-flop |
Technology Family | ABT |
VCC | 5.5 |
Bits | 8 |
Voltage | 5 |
F @ nom voltage | 150 |
ICC @ nom voltage | 30 |
tpd @ Nom Voltage | 7.1 |
3-state output | Yes |
Rating | Catalog |
Operating temperature range | -40 to 85 |
Package Group | PDIP|20 |
Package size: mm2:W x L (PKG) | See datasheet (PDIP) |
Approx. price | 0.26 | 1ku |