3.3-V 20-Bit Flip-Flop With 3-State Outputs

This 20-bit Flip-Flop is designed for low-voltage 1.65-V to 3.6-V VCC operation.
The 20 Flip-Flops of the SN74ALVCH162721 are edge-triggered D-type Flip-Flops with qualified Clock storage. On the positive transition of the Clock (CLK) input, the device provides true data at the Q outputs if the clock-enable (CLKEN) input is low. If CLKEN is high, no data is stored.
A buffered output-enable (OE) input places the 20 outputs in either a normal Logic state (high or low level) 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 operation of the Flip-Flops 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, 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. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid Logic level. The outputs, which are designed to sink up to 12 mA, include equivalent 26- resistors to reduce overshoot and undershoot. The SN74ALVCH162721 is characterized for operation from ?40C to 85C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74ALVCH162721DGGR Texas Instruments 3.3-V 20-Bit Flip-Flop With 3-State Outputs 56-TSSOP -40 to 85
SN74ALVCH162721DLR Texas Instruments 3.3-V 20-Bit Flip-Flop With 3-State Outputs 56-SSOP -40 to 85
SN74ALVCH162721GR Texas Instruments 3.3-V 20-Bit Flip-Flop With 3-State Outputs 56-TSSOP -40 to 85
SN74ALVCH162721 's PackagesSN74ALVCH162721 's pdf datasheet
74ALVCH162721DLG4 SSOP
74ALVCH162721DLRG4 SSOP
74ALVCH162721GRE4 TSSOP
74ALVCH162721GRG4 TSSOP
SN74ALVCH162721DGGR TSSOP
SN74ALVCH162721DL SSOP
SN74ALVCH162721DLR SSOP
SN74ALVCH162721GR TSSOP




SN74ALVCH162721 Pinout, Pinouts
SN74ALVCH162721 pinout,Pin out
This is one package pinout of SN74ALVCH162721,If you need more pinouts please download SN74ALVCH162721's pdf datasheet.

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