Overview
The 74HCT4094D,112 is an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs, manufactured by Nexperia USA Inc. This integrated circuit is part of the 74HCT family, known for its compatibility with TTL (Transistor-Transistor Logic) systems. The device features separate clocks for both the shift and storage registers, enabling flexible data manipulation and storage.
The 74HCT4094D,112 is packaged in a SO16 (SOT109-1) package, making it suitable for a variety of applications where compact size and high performance are required.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (Supply Voltage) | Operating Range | 4.5 | - | 5.5 | V |
| VIH (HIGH-level Input Voltage) | VCC = 4.5 V to 5.5 V | 2.0 | - | - | V |
| VIL (LOW-level Input Voltage) | VCC = 4.5 V to 5.5 V | - | - | 0.8 | V |
| VOH (HIGH-level Output Voltage) | IO = -4.0 mA, VCC = 4.5 V | 3.98 | - | - | V |
| VOL (LOW-level Output Voltage) | IO = 4.0 mA, VCC = 4.5 V | - | - | 0.4 | V |
| CP to QS1 (Propagation Delay) | VCC = 4.5 V, CL = 50 pF | 18 | - | 30 | ns |
| CP to QS2 (Propagation Delay) | VCC = 4.5 V, CL = 50 pF | 16 | - | 27 | ns |
| ICC (Supply Current) | VI = VCC or GND, IO = 0 A, VCC = 6.0 V | - | - | 80 | μA |
| CI (Input Capacitance) | - | - | - | 3.5 | pF |
Key Features
- 8-bit Serial-in/Serial or Parallel-out Shift Register: Allows for flexible data input and output configurations.
- Storage Register with Separate Clocks: Enables independent control over the shift and storage registers.
- 3-state Outputs: Outputs can be set to high-impedance OFF-state when the output enable input (OE) is LOW.
- Cascading Capability: Features two serial outputs (QS1 and QS2) to enable cascading with other shift registers.
- High-Speed Operation: Data is shifted on the LOW-to-HIGH transitions of the CP input, with propagation delays as low as 18 ns.
- Low Power Consumption: Supply current as low as 80 μA at VCC = 6.0 V.
- Clamp Diodes on Inputs: Protects against voltage spikes and ensures robust operation.
Applications
- Automotive Systems: Suitable for use in automotive electronics due to its robustness and wide operating temperature range.
- Industrial Control Systems: Used in various industrial applications requiring reliable and high-speed data manipulation.
- Consumer Electronics: Found in consumer devices such as audio and video equipment, and other digital appliances.
- Computing and Data Storage: Used in computing systems for data storage and retrieval applications.
- Mobile and Wearable Devices: Its compact size and low power consumption make it suitable for mobile and wearable electronics.
Q & A
- What is the primary function of the 74HCT4094D,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 of the 74HCT4094D,112?
The operating voltage range is from 4.5 V to 5.5 V.
- How does the device handle cascading?
The device features two serial outputs (QS1 and QS2) to enable cascading with other shift registers, allowing for both fast and slow clock edge configurations.
- What is the purpose of the output enable input (OE)?
The output enable input (OE) controls the state of the outputs; when OE is LOW, the outputs assume a high-impedance OFF-state.
- What are the propagation delays for CP to QS1 and CP to QS2?
The propagation delays are typically 18 ns for CP to QS1 and 16 ns for CP to QS2 at VCC = 4.5 V and CL = 50 pF.
- What is the maximum supply current at VCC = 6.0 V?
The maximum supply current is 80 μA at VCC = 6.0 V.
- What type of package does the 74HCT4094D,112 come in?
The device is packaged in a SO16 (SOT109-1) package.
- What are some common applications of the 74HCT4094D,112?
Common applications include automotive systems, industrial control systems, consumer electronics, computing and data storage, and mobile and wearable devices.
- Does the device have any input protection features?
Yes, the device includes clamp diodes on the inputs to protect against voltage spikes.
- What is the operating temperature range of the 74HCT4094D,112?
The operating temperature range is from -40 °C to +125 °C.
