Download the MC74AC299 datasheet PDF.
This datasheet also covers the MC74ACT299 variant, as both devices belong to the same 8-input universal shift/storage register family and are provided as variant models within a single manufacturer datasheet.
General Description
The MC74AC299/74ACT299 contains eight edge-triggered D-type flip-flops and the interstage logic necessary to perform synchronous shift left, shift right, parallel load and hold operations.
The type of operation is determined by S0 and S1, as shown in the Truth Table.
Key Features
PZH tPZL tPHZ tPLZ Maximum Input Frequency Propagation Delay CP to Q0 or Q7 Propagation Delay CP to Q0 or Q7 Propagation Delay CP to I/On Propagation Delay CP to I/On Propagation Delay MR to Q0 or Q7 Propaga.
Full PDF Text Transcription for MC74AC299 (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
MC74AC299. For precise diagrams, and layout, please refer to the original PDF.
th Common Parallel I/0 Pins 8-INPUT UNIVERSAL SHIFT/STORAGE REGISTER WITH COMMON PARALLEL I/O PINS The MC74AC299/74ACT299 is an 8-bit universal shift/storage register with 3-state outputs. Four modes of operation are possible: hold (store), shift left, shift right and load data. The parallel load inputs and flip-flop outputs are multiplexed to reduce the total number of package pins. Additional outputs are provided for flip-flops Q0, Q7 to allow easy serial cascading. A separate active LOW Master Reset is used to reset the register.
MC74AC299 Datasheet
