CD74HC299M96G4 Datasheet PDF - TI

●Description

●The ’HC259 and ’HCT299 are 8-bit shift/storage registers with three-state bus interface capability. The register has four synchronous-operating modes controlled by the two select inputs as shown in the mode select (S0, S1) table. The mode select, the serial data (DS0, DS7) and the parallel data (I/O0 - I/O7) respond only to the low-to-high transition of the clock (CP) pulse. S0, S1 and data inputs must be stable one set up time prior to the clock positive transition.

●Features

●• Buffered Inputs

●• Four Operating Modes: Shift Left, Shift Right, Load and Store

●• Can be Cascaded for N-Bit Word Lengths

●• I/O0 - I/O7 Bus Drive Capability and Three-State for Bus Oriented Applications

●• Typical fMAX = 50MHz at VCC = 5V, CL = 15pF, TA = 25oC

●• Fanout (Over Temperature Range)

●  - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads

●  - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

●• Wide Operating Temperature Range . . . -55oC to 125oC

●• Balanced Propagation Delay and Transition Times

●• Significant Power Reduction Compared to LSTTL Logic ICs

●• HC Types

●  - 2V to 6V Operation

●  - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V

●• HCT Types

●  - 4.5V to 5.5V Operation

●  - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min)

●  - CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH