CD4094 8-stage Shift-and-Store Bus Register

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CD4094 belongs to the CD4000 IC series. It is composed of an 8-bit shift register and a 3- State 8-bit latch. Data is shifted serially through the shift register on the positive transition of the clock. The CD4094 IC has a wide range of working voltage, a wide range of working conditions, and directly interfaces with CMOS, NMOS, and TTL. The output of the IC always comes in TTL which makes it easy to work with other TTL devices and microcontrollers.

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Shift-and-Store Bus Register

Shift-and-Store Bus Register are digital memory circuitry found in devices such as calculators, computers, and data processing systems. The Shift-and-Store Bus Registers allow serial or parallel data to be entered into the system. Data entry is always done from one direction, and as more data is added, it shifts positions until the data gets to the output end. The two ends are referred to as the left and right end. The movement of data can be from left to right, from right to left, or in both directions to make a bidirectional register.

CD4094 Key Features

Wide supply voltage range: 3.0V to 18V
High noise immunity: 0.45 VDD (typ.)
Low power TTL compatibility:
- Fan out of 2 driving 74L or 1 driving 74LS
3-STATE outputs

CD4094 Pinout

Pin No	Pin Name	Description
1	STROBE	Strobe Pin
2	DATA	Serial Data Input Pin
3	CLOCK	Shift Register Clock Pin
4	Q1	Shift Register Output Pin 1
5	Q2	Shift Register Output Pin 2
6	Q3	Shift Register Output Pin 3
7	Q4	Shift Register Output Pin 4
8	VSS	Source Supply
9	Qs	Store Register Output
10	Q’s	Store Register Inverted Output
11	Q8	Shift Register Output Pin 8
12	Q7	Shift Register Output Pin 7
13	Q6	Shift Register Output Pin 6
14	Q5	Shift Register Output Pin 5
15	ENB-OUT	enables outputs if set high
16	VDD	Drain Supply