Overview
The 74HCT4094D-Q100118 is an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs, manufactured by NXP USA Inc. This component is part of the 74HCT family, which is known for its compatibility with TTL (Transistor-Transistor Logic) input levels. The device is designed to handle serial-to-parallel data conversion and features separate clocks for both the shift and storage registers, making it versatile for various digital circuit applications.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | 74HCT4094D |
| Package | SO16 (SOT109-1) |
| VCC (V) | 4.5 - 5.5 |
| Logic Switching Levels | TTL |
| Output Drive Capability (mA) | ± 4 |
| tpd (ns) | 19 |
| fmax (MHz) | 86 |
| Number of Bits | 8 |
| Power Dissipation Considerations | Low-power dissipation |
| Tamb (°C) | -40 to +125 |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
Key Features
- 8-bit serial-in/serial or parallel-out shift register with a storage register.
- 3-state outputs.
- 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 controlled by STR input.
- Output enable input (OE) to control output states.
- Clamp diodes on inputs to protect against voltage spikes.
- Complies with JEDEC standard JESD7A.
- Low-power dissipation and high ESD protection.
Applications
The 74HCT4094D-Q100118 is suitable for a variety of digital circuit applications, including:
- Serial-to-parallel data conversion.
- Remote control holding registers.
- Cascading shift registers in larger systems.
- General-purpose digital logic circuits requiring serial and parallel data handling.
Q & A
- What is the primary function of the 74HCT4094D-Q100118?
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 are the logic switching levels for this component?
The logic switching levels are TTL (Transistor-Transistor Logic). - What is the operating voltage range for the 74HCT4094D-Q100118?
The operating voltage range is 4.5 to 5.5 volts. - How many bits does the shift register handle?
The shift register handles 8 bits. - What is the maximum clock frequency for this component?
The maximum clock frequency is 86 MHz. - Does the component have ESD protection?
Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM. - What is the temperature range for operation?
The component operates from -40°C to +125°C. - How are the outputs controlled in the storage register?
The outputs are controlled by the output enable input (OE), which can set the outputs to a high-impedance OFF-state when LOW. - Can the component be cascaded with other shift registers?
Yes, it has two serial outputs (QS1 and QS2) to enable cascading. - What package type is used for the 74HCT4094D-Q100118?
The component is packaged in a SO16 (SOT109-1) package.
