Overview
The MC74VHCT259ADR2G is an 8-bit Addressable Latch/1-of-8 Decoder fabricated with silicon gate CMOS technology, produced by onsemi. This device is designed for high-speed operation, similar to equivalent Bipolar Schottky TTL, while maintaining the low power dissipation characteristic of CMOS technology. It features four modes of operation: addressable latch, memory, one-of-eight decoding or demultiplexing, and reset. The device is compatible with TTL levels and can be used as a level converter for interfacing between 3.3 V and 5.0 V systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Positive DC Supply Voltage (VCC) | -0.5 to +7.0 | V |
| Digital Input Voltage (VIN) | -0.5 to +7.0 | V |
| Maximum High-Level Input Voltage (VIH) | 2.0 | V |
| Maximum Low-Level Input Voltage (VIL) | 0.8 | V |
| Maximum High-Level Output Voltage (VOH) at VCC = 5.0 V, IOH = -50 μA | 4.4 | V |
| Maximum Low-Level Output Voltage (VOL) at VCC = 5.0 V, IOL = 50 μA | 0.1 | V |
| Maximum Propagation Delay, Data to Output at VCC = 5.0 V, CL = 15 pF | 7.6 ns | ns |
| Maximum Quiescent Supply Current (ICC) at TA = 25°C | 2 μA | μA |
| ESD Withstand Voltage (Human Body Model) | >2000 V | V |
| Latchup Performance | >300 mA | mA |
Key Features
- High Speed: Maximum propagation delay of 7.6 ns at VCC = 5.0 V.
- Low Power Dissipation: Maximum quiescent supply current of 2 μA at TA = 25°C.
- TTL-Compatible Inputs: Compatible with TTL levels, VIL = 0.8 V, VIH = 2.0 V.
- Power Down Protection: Provided on inputs and outputs to prevent device destruction.
- Pin and Function Compatibility: Compatible with other standard logic families.
- Latchup Performance: Exceeds 300 mA.
- ESD Performance: Human Body Model (HBM) > 2000 V.
- Pb-Free and RoHS Compliant: Environmentally friendly packaging.
Applications
The MC74VHCT259ADR2G is designed for general-purpose storage applications in digital systems. It can be used in various modes such as addressable latch, memory, one-of-eight decoding or demultiplexing, and reset. This device is particularly useful in systems requiring high-speed operation and low power consumption, such as:
- Digital logic circuits
- Data storage and retrieval systems
- Level conversion between 3.3 V and 5.0 V systems
- Embedded systems and microcontrollers
Q & A
- What is the primary function of the MC74VHCT259ADR2G?
The primary function is to act as an 8-bit addressable latch and a 1-of-8 decoder, with the capability to operate in multiple modes.
- What are the different modes of operation for this device?
The device operates in four modes: addressable latch, memory, one-of-eight decoding or demultiplexing, and reset.
- What is the maximum propagation delay for this device at VCC = 5.0 V?
The maximum propagation delay is 7.6 ns at VCC = 5.0 V and CL = 15 pF.
- Is the MC74VHCT259ADR2G compatible with TTL levels?
Yes, it is compatible with TTL levels, with VIL = 0.8 V and VIH = 2.0 V.
- What kind of protection does the device offer?
The device offers power down protection on inputs and outputs, as well as ESD protection with a Human Body Model (HBM) rating of >2000 V.
- Is the MC74VHCT259ADR2G Pb-Free and RoHS compliant?
Yes, the device is Pb-Free and RoHS compliant.
- What is the maximum quiescent supply current at TA = 25°C?
The maximum quiescent supply current is 2 μA at TA = 25°C.
- Can the MC74VHCT259ADR2G be used for level conversion between different voltage systems?
Yes, it can be used for level conversion between 3.3 V and 5.0 V systems.
- What is the latchup performance of the device?
The latchup performance exceeds 300 mA.
- What are the typical applications of the MC74VHCT259ADR2G?
Typical applications include digital logic circuits, data storage and retrieval systems, and embedded systems.
