The SN54LVC574A octal edge-triggered D-type flip-flop is designed for 2.7-V to 3.6-V VCC operation, and the SN74LVC574A octal edge-triggered D-type flip-flop is designed for 1.65-V to 3.6-V VCC operation.
These devices 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.
On the positive transition of the clock (CLK) input, the Q outputs are set to 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 increased drive provide the capability to drive bus lines without interface or pullup components.
OE\ does not affect the internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
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.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.
Products containing the "SN74LVC574A" keyword are: SN74LVC574ADB , SN74LVC574ADBE4 , SN74LVC574ADBLE , SN74LVC574ADBR , SN74LVC574ADBR , SN74LVC574ADBR LC574A , SN74LVC574ADBRE4 , SN74LVC574ADBRE4 , SN74LVC574ADBRG4 , SN74LVC574ADBRG4 , SN74LVC574ADGVR , SN74LVC574ADGVR , SN74LVC574ADGVRE4 , SN74LVC574ADGVRE4 , SN74LVC574ADGVRG4 , SN74LVC574ADW , SN74LVC574ADW , SN74LVC574ADWE4 , SN74LVC574ADWE4 , SN74LVC574ADWG4Status | ACTIVE |
SubFamily | D-type flip-flop |
Technology Family | LVC |
VCC | 3.6 |
Bits | 8 |
Voltage | 1.8^2.5^2.7^3.3 |
F @ nom voltage | 100 |
ICC @ nom voltage | 0.01 |
tpd @ Nom Voltage | 21.5^10^7.8^8.8 |
3-state output | Yes |
Rating | Catalog |
Operating temperature range | -40 to 125 |
Package Group | BGA MICROSTAR JUNIOR|20 |
Package size: mm2:W x L (PKG) | [pf]20BGA MICROSTAR JUNIOR[/pf]: 12 mm2: 3 x 4 (BGA MICROSTAR JUNIOR|20) |
Approx. price | 0.12 | 1ku |