2.5-V/3.3-V 20-Bit Bus-Interface Flip-Flops With 3-State Outputs

The 'ALVTH16821 devices are 20-bit bus-interface Flip-Flops with 3-state outputs designed for 2.5-V or 3.3-V VCC operation, but with the capability to provide a TTL Interface to a 5-V system environment.
The devices CAN be used as two 10-bit Flip-Flops or one 20-bit Flip-Flop The 20-bit Flip-Flops are edge-triggered D-type Flip-Flops On the positive transition of the Clock (CLK), the Flip-Flops store the Logic levels set up at the D inputs.
A buffered output-enable (OE) input CAN be used to place the ten outputs in either a normal Logic state (high or low level) 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.
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.
When VCC is between 0 and 1.2 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.2 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.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid Logic level.
The SN54ALVTH16821 is characterized for operation over the full military temperature range of -55C to 125C. The SN74ALVTH16821 is characterized for operation from -40C to 85C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74ALVTH16821VR Texas Instruments 2.5-V/3.3-V 20-Bit Bus-Interface Flip-Flops With 3-State Outputs 56-TVSOP -40 to 85
SN74ALVTH16821DL Texas Instruments 2.5-V/3.3-V 20-Bit Bus-Interface Flip-Flops With 3-State Outputs 56-SSOP -40 to 85
SN74ALVTH16821GR Texas Instruments 2.5-V/3.3-V 20-Bit Bus-Interface Flip-Flops With 3-State Outputs 56-TSSOP -40 to 85
SN74ALVTH16821DLR Texas Instruments 2.5-V/3.3-V 20-Bit Bus-Interface Flip-Flops With 3-State Outputs 56-SSOP -40 to 85
SN74ALVTH16821 's PackagesSN74ALVTH16821 's pdf datasheet
74ALVTH16821DLG4 SSOP
74ALVTH16821DLRG4 SSOP
74ALVTH16821GRE4 TSSOP
74ALVTH16821GRG4 TSSOP
74ALVTH16821VRE4 TVSOP
74ALVTH16821VRG4 TVSOP
SN74ALVTH16821DL SSOP
SN74ALVTH16821DLR SSOP
SN74ALVTH16821GR TSSOP
SN74ALVTH16821VR TVSOP




SN74ALVTH16821 Pinout, Pinouts
SN74ALVTH16821 pinout,Pin out
This is one package pinout of SN74ALVTH16821,If you need more pinouts please download SN74ALVTH16821's pdf datasheet.

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SN74ALVTH16821 Application Notes SN74ALVTH16821 RoHS SN74ALVTH16821 Circuits SN74ALVTH16821 footprint
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