Overview
The MC74LCX574DTR2G, produced by onsemi, is a high-performance, low-voltage CMOS octal D-type flip-flop. This device operates within a voltage range of 2.3 to 3.6 volts and features 5 V-tolerant inputs and outputs, making it compatible with both LVTTL and LVCMOS logic. The flip-flop is designed with a flow-through pinout, facilitating easy PCB layout. Although this device is discontinued and not recommended for new designs, it remains relevant for existing applications and legacy systems.
Key Specifications
| Parameter | Min | Typ | Max | Units | Condition |
|---|---|---|---|---|---|
| VCC (Supply Voltage) | 2.0 | - | 3.6 | V | Operating |
| VI (Input Voltage) | 0 | - | 5.5 | V | - |
| VO (Output Voltage) | 0 | - | VCC + 0.5 | V | 3-State |
| IOH (HIGH Level Output Current) | -24 | - | - | mA | VCC = 3.0 V - 3.6 V |
| IOL (LOW Level Output Current) | 24 | - | - | mA | VCC = 3.0 V - 3.6 V |
| TA (Operating Free-Air Temperature) | -55 | - | 125 | °C | - |
| fmax (Clock Pulse Frequency) | 1 | - | 150 | MHz | VCC = 3.0 V - 3.6 V |
| tPLH (Propagation Delay CP to On) | 1.5 | - | 8.5 | ns | VCC = 3.0 V - 3.6 V |
Key Features
- Designed for 2.3 to 3.6 V VCC operation
- 5 V tolerant - interface capability with 5 V TTL logic
- Supports live insertion and withdrawal
- IOFF specification guarantees high impedance when VCC = 0 V
- LVTTL and LVCMOS compatible
- 24 mA balanced output sink and source capability
- Near zero static supply current in all three logic states (10 μA), substantially reducing system power requirements
- Latchup performance exceeds 500 mA
- ESD performance: Human Body Model >2000 V, Machine Model >200 V
- NLV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified and PPAP capable
- Pb-free, halogen-free/BFR-free, and RoHS compliant
Applications
The MC74LCX574DTR2G is suitable for a variety of applications, including:
- Automotive systems requiring AEC-Q100 qualification
- Industrial control systems where low power consumption and high reliability are critical
- Telecommunication equipment needing 5 V tolerant inputs and outputs
- Consumer electronics requiring low voltage operation and high performance
- Legacy systems where compatibility with existing designs is necessary
Q & A
- What is the operating voltage range of the MC74LCX574DTR2G?
The MC74LCX574DTR2G operates within a voltage range of 2.3 to 3.6 volts.
- Is the MC74LCX574DTR2G compatible with 5 V TTL logic?
Yes, the device is 5 V tolerant, allowing it to interface with 5 V TTL logic.
- What is the maximum clock pulse frequency for the MC74LCX574DTR2G?
The maximum clock pulse frequency is 150 MHz.
- Does the MC74LCX574DTR2G support live insertion and withdrawal?
Yes, it supports live insertion and withdrawal.
- What is the propagation delay from the clock pulse to the output?
The propagation delay (tPLH) is between 1.5 ns and 8.5 ns.
- Is the MC74LCX574DTR2G RoHS compliant?
Yes, the device is Pb-free, halogen-free/BFR-free, and RoHS compliant.
- What is the ESD performance of the MC74LCX574DTR2G?
The ESD performance exceeds 2000 V for the Human Body Model and 200 V for the Machine Model.
- Can the MC74LCX574DTR2G be used in automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive applications.
- What is the maximum output current sink and source capability?
The device has a 24 mA balanced output sink and source capability.
- Is the MC74LCX574DTR2G still recommended for new designs?
No, the device is discontinued and not recommended for new designs.
