The 'LVTH162374 devices are 16-bit edge-triggered D-type flip-flops with 3-state outputs designed for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment. 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), the Q outputs of the flip-flop take on the logic levels set up at the 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 a 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.
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 outputs, which are designed to source or sink up to 12 mA, include equivalent 22- series resistors to reduce overshoot and undershoot.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
When VCC is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, 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.
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict.
Products containing the "SN74LVTH162374" keyword are: SN74LVTH162374DGGR , SN74LVTH162374DGGR , SN74LVTH162374DGGRG4 , SN74LVTH162374DL , SN74LVTH162374DLR , SN74LVTH162374DLR , SN74LVTH162374KR , SN74LVTH162374KRWidebus is a trademark of Texas Instruments.
Status | ACTIVE |
SubFamily | D-type flip-flop |
Technology Family | LVT |
VCC | 3.6 |
Bits | 16 |
Voltage | 3.3 |
F @ nom voltage | 160 |
ICC @ nom voltage | 5 |
tpd @ Nom Voltage | 5.3 |
3-state output | Yes |
Rating | Catalog |
Operating temperature range | -40 to 85 |
Package Group | BGA MICROSTAR JUNIOR|54 |
Package size: mm2:W x L (PKG) | [pf]56BGA MICROSTAR JUNIOR[/pf]: 32 mm2: 4.5 x 7 (BGA MICROSTAR JUNIOR|56) |
Approx. price | 0.52 | 1ku |