Overview
The 74HCT4094DB,112 from Nexperia USA Inc. is an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs. This integrated circuit is part of the 74HCT series, which is compatible with TTL (Transistor-Transistor Logic) inputs. The device is designed for use in a variety of digital circuits where data needs to be shifted and stored efficiently.
Key Specifications
| Parameter | Conditions | Min | Typ | Max |
|---|---|---|---|---|
| VCC (Supply Voltage) | 4.5 V | 5.5 V | ||
| VIH (HIGH-level input voltage) | VCC = 4.5 V to 5.5 V | 2.0 V | 2.0 V | |
| VIL (LOW-level input voltage) | VCC = 4.5 V to 5.5 V | 0.8 V | 1.2 V | |
| VOH (HIGH-level output voltage) | IO = -4.0 mA, VCC = 4.5 V | 3.84 V | 4.32 V | 3.7 V |
| VOL (LOW-level output voltage) | IO = 4.0 mA, VCC = 4.5 V | 0.15 V | 0.26 V | 0.4 V |
| II (input leakage current) | VI = VCC or GND, VCC = 5.5 V | ±0.1 μA | ±1.0 μA | |
| IOZ (OFF-state output current) | VI = VIH or VIL, VO = VCC or GND, VCC = 6.0 V | ±0.5 μA | ±10.0 μA | |
| ICC (supply current) | VI = VCC or GND, IO = 0 A, VCC = 6.0 V | 8.0 μA | 160 μA | |
| CI (input capacitance) | 3.5 pF | |||
| CP to QS1 (propagation delay) | VCC = 4.5 V, CL = 50 pF | 18 ns | 30 ns | 38 ns |
| CP to QS2 (propagation delay) | VCC = 4.5 V, CL = 50 pF | 16 ns | 27 ns | 34 ns |
Key Features
- 8-bit serial-in/serial or parallel-out shift register with a storage register.
- 3-state outputs to reduce bus contention.
- Separate clocks for shift and storage registers.
- Serial input (D) and two serial outputs (QS1 and QS2) for cascading.
- Data transfer from shift register to storage register on HIGH STR input.
- Output enable input (OE) to control output state.
- Compatible with TTL inputs.
- Operating temperature range: -40°C to +125°C.
Applications
The 74HCT4094DB,112 is suitable for various digital circuit applications, including:
- Serial-to-parallel data conversion.
- Parallel-to-serial data conversion.
- Data storage and retrieval in digital systems.
- Cascading shift registers for extended data handling.
- Bus-oriented systems where data needs to be shifted and stored efficiently.
Q & A
- What is the primary function of the 74HCT4094DB,112?
The primary function is to act as an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs. - What is the operating voltage range for this IC?
The operating voltage range is from 4.5 V to 5.5 V. - How many serial outputs does the 74HCT4094DB,112 have?
It has two serial outputs (QS1 and QS2) to enable cascading. - What triggers the data transfer from the shift register to the storage register?
Data transfer is triggered when the STR input is HIGH. - What is the purpose of the output enable input (OE)?
The output enable input (OE) controls the output state, with a LOW on OE causing the outputs to assume a high-impedance OFF-state. - Is the 74HCT4094DB,112 compatible with TTL inputs?
Yes, it is compatible with TTL inputs. - What is the temperature range for this IC?
The operating temperature range is from -40°C to +125°C. - How many bits can this shift register handle?
It can handle 8 bits of data. - Can the 74HCT4094DB,112 be used in bus-oriented systems?
Yes, it is suitable for bus-oriented systems where data needs to be shifted and stored efficiently. - What type of package does the 74HCT4094DB,112 come in?
It comes in a 16-pin SSOP (Shrink Small Outline Package) package.
