74F323 Datasheet | Fairchild Semiconductor

Description The 74F323 is an 8-bit universal shift/storage register with 3-STATE outputs. Its function is similar to the 74F299 with the exception of Synchronous Reset. Parallel load inputs and flip-flop outputs are multiplexed to minimize pin count. Separate serial inputs and outputs are provided for Q0 and Q7 to allow easy cascading. Four operation modes are possible: hold (store), shift left, shift right and parallel load. Features s mon parallel I/O for reduced pin count s Additional serial inputs and outputs for expansion s Four operating modes: shift left, shift right, load and store s 3-STATE outputs for bus-oriented applications Ordering Code: Order Number 74F323SC 74F323PC Package Number M20B N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbols Connection Diagram IEEE/IEC © 1999 Fairchild Semiconductor Corporation DS009517 .fairchildsemi. Unit Loading/Fan Out Pin Names CP DS0 DS7 S0, S1 SR OE1, OE2 I/O0- I/O7 Q0, Q7 Description Clock Pulse Input (Active Rising Edge) Serial Data Input for Right Shift Serial Data Input for Left Shift Mode Select Inputs Synchronous Reset Input (Active LOW) 3-STATE Output Enable Inputs (Active LOW) Multiplexed Parallel Data Inputs 3-STATE Parallel Data Outputs Serial Outputs U.L. HIGH/LOW 1.0/1.0 1.0/1.0 1.0/1.0 1.0/2.0 1.0/1.0 1.0/1.0 3.5/1.083 150/40 (33.3) 50/33.3 Input IIH/IIL Output IOH/IOL 20 µA/- 0.6 m A 20 µA/- 0.6 m A 20 µA/- 0.6 m A 20 µA/- 1.2 m A 20 µA/- 0.6 m A 20 µA/- 0.6 m A 70 µA/- 0.65 m A - 3 m A/24 m A (20 m A) - 1 m A/20 m A Functional Description The 74F323 contains eight edge-triggered D-type flip-flops and the interstage logic necessary to perform synchronous reset, shift left, shift right, parallel load and hold operations. The type of operation is determined by S0 and S1 as...