Overview
The MC74HC573ADTR2G is an Octal 3-State Noninverting Transparent Latch produced by onsemi. This device is part of the HC573A series, which is identical in pinout to the LS573 and compatible with standard CMOS outputs, as well as LSTTL outputs when used with pullup resistors. The MC74HC573A/HCT573A can also serve as a level converter for interfacing TTL or NMOS outputs to High-Speed CMOS inputs. The transparent latch functionality allows the outputs to change asynchronously when the Latch Enable is high, and data is latched when the Latch Enable goes low, provided the setup and hold times are met.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 2.0 to 6.0 | V |
| DC Input Voltage (VIN) | –0.5 to VCC + 0.5 | V |
| DC Output Voltage (VOUT) | –0.5 to VCC + 0.5 | V |
| Operating Free-Air Temperature (TA) | –55 to +125 | °C |
| Maximum Propagation Delay, D to Q | 150 ns (VCC = 2.0 V), 30 ns (VCC = 6.0 V) | ns |
| Maximum Propagation Delay, Latch Enable to Q | 160 ns (VCC = 2.0 V), 32 ns (VCC = 6.0 V) | ns |
| Maximum Input Rise and Fall Times | 1000 ns (VCC = 2.0 V), 400 ns (VCC = 6.0 V) | ns |
| Maximum Input Capacitance (CIN) | 10 pF | pF |
| Maximum Three-State Output Capacitance (COUT) | 15 pF | pF |
| Output Drive Capability | 15 LSTTL Loads | |
| Low Input Current | 1 μA | μA |
Key Features
- Output Drive Capability: 15 LSTTL Loads
- Outputs Directly Interface to CMOS, NMOS, and TTL
- Operating Voltage Range: 2.0 to 6.0 V (HC), 4.5 to 5.5 V (HCT)
- Low Input Current: 1 μA
- High Noise Immunity Characteristic of CMOS Devices
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A
- Chip Complexity: 234 FETs or 58.5 Equivalent Gates
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant
- AEC-Q100 Qualified and PPAP Capable for automotive and other applications requiring unique site and control change requirements
Applications
The MC74HC573ADTR2G is suitable for a variety of applications, including:
- Level conversion between TTL, NMOS, and CMOS logic levels
- Data storage and transfer in digital systems
- Buffering and latching in microprocessor and microcontroller systems
- Automotive and industrial control systems requiring high reliability and compliance with automotive standards
- General-purpose digital logic circuits where transparent latching is necessary
Q & A
- What is the operating voltage range of the MC74HC573ADTR2G?
The operating voltage range is 2.0 to 6.0 V for the HC version and 4.5 to 5.5 V for the HCT version.
- What is the maximum propagation delay from D to Q?
The maximum propagation delay from D to Q varies from 150 ns at VCC = 2.0 V to 30 ns at VCC = 6.0 V.
- How many LSTTL loads can the outputs drive?
The outputs can drive up to 15 LSTTL loads.
- What is the low input current of the device?
The low input current is 1 μA.
- Is the MC74HC573ADTR2G RoHS compliant?
- What are the typical applications of the MC74HC573ADTR2G?
The device is used in level conversion, data storage and transfer, buffering and latching, and in automotive and industrial control systems.
- What is the maximum input rise and fall time?
The maximum input rise and fall time is 1000 ns at VCC = 2.0 V and 400 ns at VCC = 6.0 V.
- Is the MC74HC573ADTR2G AEC-Q100 qualified?
- What is the chip complexity of the MC74HC573ADTR2G?
The chip complexity is 234 FETs or 58.5 equivalent gates.
- What is the package type of the MC74HC573ADTR2G?
The package type is TSSOP-20.
