Overview
The 74HC4094DB,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 device is part of the 74HC and 74HCT series, known for their low-power dissipation and high reliability. It features separate clocks for both the shift and storage registers, enabling flexible data handling. The device includes a serial input (D) and two serial outputs (QS1 and QS2) to facilitate cascading, making it suitable for various digital circuit applications.
Key Specifications
| Parameter | Description | Min | Typ | Max |
|---|---|---|---|---|
| Voltage - Supply | Operating voltage range | 2 V | - | 6 V |
| Operating Temperature | Operating temperature range | -40 °C | - | 125 °C |
| Package / Case | Package type | 16-SSOP (0.209", 5.30mm Width) | - | - |
| Number of Bits per Element | Number of bits in the shift register | 8 | - | - |
| Output Type | Type of output | Tri-State | - | - |
| Input Levels | Input voltage levels | CMOS (74HC4094), TTL (74HCT4094) | - | - |
| ESD Protection | ESD protection levels | 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 and 3-state outputs.
- Separate clocks for the shift and storage registers.
- Serial input (D) and two serial outputs (QS1 and QS2) for cascading.
- Data shifted on LOW-to-HIGH transitions of the CP input.
- Data transfer from shift register to storage register when STR input is HIGH.
- Output enable input (OE) controls the output state.
- Complies with JEDEC standard JESD7A.
- Low-power dissipation.
- ESD protection: HBM and CDM compliant.
- Inputs include clamp diodes for voltage protection.
Applications
- Serial-to-parallel data conversion.
- Remote control holding register.
- Cascading shift registers for extended data handling.
Q & A
- What is the primary function of the 74HC4094DB,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 are the operating voltage and temperature ranges for this device?
The operating voltage range is 2 V to 6 V, and the operating temperature range is -40 °C to 125 °C.
- What type of package does the 74HC4094DB,112 come in?
The device comes in a 16-SSOP (0.209", 5.30mm Width) package.
- How does data shifting occur in the 74HC4094DB,112?
Data is shifted on the LOW-to-HIGH transitions of the CP input.
- What is the purpose of the STR input in the 74HC4094DB,112?
The STR input transfers data from the shift register to the storage register when it is HIGH.
- How are the outputs controlled in the 74HC4094DB,112?
The outputs are controlled by the output enable input (OE); a LOW on OE causes the outputs to assume a high-impedance OFF-state.
- What are the ESD protection levels for this device?
The device has ESD protection levels of HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, and CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- What standards does the 74HC4094DB,112 comply with?
The device complies with JEDEC standard JESD7A.
- What are some common applications of the 74HC4094DB,112?
Common applications include serial-to-parallel data conversion and remote control holding register.
- Does the 74HC4094DB,112 have any special input protection features?
Yes, the inputs include clamp diodes to protect against voltages in excess of VCC.
