HomedatasheetPI74ALVCH16374A

PI74ALVCH16374A Datasheet

16-Bit Edge Triggered D-Type Flip-Flop with 3-State Outputs
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Description

Product Description
Pericom Semiconductors PI74ALVCH series of logic circuits are produced in the Companys advanced 0.5 micron CMOS technology, achieving industry leading speed.
This 16-bit edge-triggered D-type flip-flop is designed for 2.3V to 3.6V VCC operation.
The PI74ALVCH16374 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. This device can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive transition of the Clock (CLK) input, the Q outputs of the flip-flop take on the logic levels set up at the data (D) inputs. OE 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 that 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.
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.

Product Features
• PI74ALVCH16374 is designed for low voltage operation
• VCC = 2.3V to 3.6V
• Hysteresis on all inputs
• Typical VOLP (Output Ground Bounce)
   < 0.8V at VCC = 3.3V, TA = 25°C
• Typical VOHV (Output VOH Undershoot)
   < 2.0V at VCC = 3.3V, TA = 25°C
• Bus Hold retains last active bus state during 3-STATE
   eliminating the need for external pullup resistors
• Industrial operation at -40°C to +85°C
• Packages available:
   - 48-pin 240 mil wide plastic TSSOP (A)
   - 48-pin 300 mil wide plastic SSOP (V)

Features

Parameters


Manufacturer information

PERICOM SEMICONDUCTOR
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