Overview
The MC74VHC595DR2G, produced by onsemi, is an advanced high-speed 8-bit shift register with an output storage register. Fabricated using silicon gate CMOS technology, this component achieves high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the low power dissipation characteristic of CMOS devices. It contains an 8-bit static shift register that feeds an 8-bit storage register, allowing for independent shift and register clock operations. This feature enables parallel outputs to remain stable during the shift operation, and the 3-state parallel outputs can be directly connected to an 8-bit bus.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC (DC Supply Voltage) | 2.0 | 5.5 | V | |
| VIN (DC Input Voltage) | 0 | 5.5 | V | |
| fmax (Maximum Clock Frequency at VCC = 5 V) | 135 | 185 | MHz | |
| ICC (Maximum Quiescent Supply Current at VCC = 5.5 V) | 40.0 | μA | ||
| VIH (Minimum High-Level Input Voltage at VCC = 5.5 V) | 3.15 | 3.85 | V | |
| VIL (Maximum Low-Level Input Voltage at VCC = 5.5 V) | 0.5 | 1.35 | V | |
| VOH (Minimum High-Level Output Voltage at VCC = 5.5 V, IOH = -50 μA) | 4.4 | V | ||
| VOL (Maximum Low-Level Output Voltage at VCC = 5.5 V, IOL = 50 μA) | 0.0 | 0.1 | V | |
| TJ (Junction Temperature Under Bias) | 150 | °C |
Key Features
- High Speed: Maximum clock frequency up to 185 MHz at VCC = 5 V.
- Low Power Dissipation: Maximum quiescent supply current of 40 μA at VCC = 5.5 V.
- High Noise Immunity: Input voltage thresholds provide high noise immunity.
- Power Down Protection: Provided on inputs.
- Balanced Propagation Delays.
- Designed for 2 V to 5.5 V Operating Range.
- Low Noise: Quiet output maximum dynamic VOL of 1.0 V.
- Pin and Function Compatible with Other Standard Logic Families.
- Latchup Performance Exceeds 300 mA.
- ESD Performance: Human Body Model (HBM) > 2000 V, Machine Model > 200 V.
- Pb-Free and RoHS Compliant.
Applications
The MC74VHC595DR2G can be used in various applications such as:
- Serial-to-parallel conversion.
- Data receivers.
- Interface between 5 V and 3 V systems.
- Any system requiring high-speed shift register operations with output storage.
Q & A
- What is the maximum clock frequency of the MC74VHC595 at VCC = 5 V?
The maximum clock frequency is up to 185 MHz at VCC = 5 V.
- What is the maximum quiescent supply current of the MC74VHC595?
The maximum quiescent supply current is 40 μA at VCC = 5.5 V.
- What is the operating temperature range of the MC74VHC595?
The operating temperature range is from -55°C to 125°C.
- Is the MC74VHC595 compatible with other standard logic families?
- What is the ESD performance of the MC74VHC595?
The ESD performance is HBM > 2000 V and Machine Model > 200 V.
- Is the MC74VHC595 Pb-Free and RoHS Compliant?
- What is the maximum input voltage the MC74VHC595 can tolerate?
The maximum input voltage is up to 5.5 V.
- Can the MC74VHC595 be used for serial-to-parallel conversion?
- What is the thermal resistance of the MC74VHC595 in the SOIC-16 package?
The thermal resistance is 126 °C/W.
- What is the setup time for the serial input (SI) to the shift clock (SCK) at VCC = 5 V?
The setup time is 3.5 ns.
