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UNIVERSAL 4-BIT SHIFT REGISTER
The SN54 / 74LS195A is a high speed 4-Bit Shift Register offering typical shift frequencies of 39 MHz. It is useful for a wide variety of register and counting applications. It utilizes the Schottky diode clamped process to achieve high speeds and is fully compatible with all Motorola TTL products.
• Typical Shift Right Frequency of 39 MHz • Asynchronous Master Reset • J, K Inputs to First Stage • Fully Synchronous Serial or Parallel Data Transfers • Input Clamp Diodes Limit High Speed Termination Effects
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC Q0 Q1 Q2 Q3 Q3 CP PE 16 15 14 13 12 11 10 9
NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package.
12 MR J
3 4 56 78 K P0 P1 P2 P3 GND
PIN NAMES
LOADING (Note a)
HIGH
LOW
PE
P0 – P3 J
K
CP
MR
Q0 – Q3 Q3
Parallel Enable (Active LOW) Input Parallel Data Inputs First Stage J (Active HIGH) Input First Stage K (Active LOW) Input Clock (Active HIGH Going Edge.