4-BIT BIDIRECTIONAL UNIVERSAL SHIFT REGISTERS

These 4-bit bidirectional universal Shift registers SN54AS194 SN74AS194 feature parallel outputs, right-shift and left-shift serial (SR SER, SL SER) inputs, operating- mode-control (S0, S1) inputs, and a direct overriding clear (CLR) line. The Registers have four distinct modes of operation: Inhibit Clock (temporary data latch/do nothing) Shift right (in the direction QA toward QD) Shift left (in the direction QD toward QA) Parallel (broadside) load Parallel synchronous loading is accomplished by applying the four bits of data and taking both S0 and S1 high. The data is loaded into the associated Flip-Flops and appears at the outputs after the positive transition of the Clock (CLK) input. During loading, serial data flow is inhibited. Shift right is accomplished synchronously with the rising edge of the Clock pulse when S0 is high and S1 is low. Serial data for this mode is entered at the shift-right data input. When S0 is low and S1 is high, data shifts left synchronously and new data is entered at the shift-left serial inputs. Clocking of the Flip-Flop is inhibited when both mode-control inputs are low. The SN54AS194 is characterized for operation over the full military temperature range of 55C to 125C. The SN74AS194 is characterized for operation from 0C to 70C. By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN54AS194J Texas Instruments AS SERIES, 4-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, CDIP16, 0.300 INCH, CERAMIC, DIP-16
SN54AS194 's PackagesSN54AS194 's pdf datasheet



SN54AS194 Pinout, Pinouts
SN54AS194 pinout,Pin out
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