Overview
The SN74ALVC164245DLG4, produced by Texas Instruments, is a 16-bit noninverting bus transceiver designed for level-shifting applications. This component is part of the Texas Instruments Widebus™ Family and is capable of translating signals between different voltage levels, specifically from 2.5 V to 3.3 V or from 3.3 V to 5 V, and vice versa. It features two separate supply rails, VCCA and VCCB, allowing for flexible voltage operation. The transceiver is optimized for asynchronous communication between data buses and includes 3-state outputs to control data flow effectively.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit |
|---|---|---|---|---|
| VOH (B to A) | IOH = –100 µA, VCCA = 2.3 V to 2.7 V, VCCB = 3 V to 3.6 V | VCCA – 0.2 | V | |
| VOH (B to A) | IOH = –8 mA, VCCA = 2.3 V, VCCB = 3 V to 3.6 V | 1.7 | V | |
| VOH (B to A) | IOH = –12 mA, VCCA = 2.7 V, VCCB = 3 V to 3.6 V | 1.8 | V | |
| VOH (A to B) | IOH = –100 µA, VCCA = 2.3 V to 2.7 V, VCCB = 3 V to 3.6 V | VCCB – 0.2 | V | |
| VOH (A to B) | IOH = –18 mA, VCCA = 2.3 V to 2.7 V, VCCB = 3 V | 2.2 | V | |
| VOL (B to A) | IOL = 100 µA, VCCA = 2.3 V to 2.7 V, VCCB = 3 V to 3.6 V | 0.2 | V | |
| VOL (B to A) | IOL = 12 mA, VCCA = 2.3 V, VCCB = 3 V to 3.6 V | 0.6 | V | |
| VOL (A to B) | IOL = 100 µA, VCCA = 2.3 V to 2.7 V, VCCB = 3 V to 3.6 V | 0.2 | V | |
| VOL (A to B) | IOL = 18 mA, VCCA = 2.3 V, VCCB = 3 V | 0.55 | V | |
| ICC | VI = VCCA/VCCB or GND, IO = 0 | 20 µA | A | |
| tpd | At 3.3 V | 5.8 ns | ns |
Key Features
- Member of the Texas Instruments Widebus™ Family
- Maximum propagation delay (tpd) of 5.8 ns at 3.3 V
- ±24-mA output drive at 3.3 V
- Control inputs VIH/VIL levels are referenced to VCCA voltage
- Latch-up performance exceeds 250 mA per JESD 17
- 3-state outputs for data flow control
- Two separate supply rails (VCCA and VCCB) for flexible voltage operation
Applications
- Electronic Points of Sale
- Printers and Other Peripherals
- Motor Drives
- Wireless and Telecom Infrastructures
- Wearable Health and Fitness Devices
Q & A
- What is the primary function of the SN74ALVC164245DLG4?
The primary function is to act as a 16-bit noninverting bus transceiver for level-shifting applications between different voltage levels (2.5 V to 3.3 V or 3.3 V to 5 V).
- What are the two separate supply rails in the SN74ALVC164245DLG4?
The two separate supply rails are VCCA and VCCB, which allow the component to operate at different voltage levels.
- What is the maximum propagation delay at 3.3 V?
The maximum propagation delay at 3.3 V is 5.8 ns.
- What is the output drive capability at 3.3 V?
The output drive capability at 3.3 V is ±24 mA.
- What are some common applications of the SN74ALVC164245DLG4?
Common applications include electronic points of sale, printers and other peripherals, motor drives, wireless and telecom infrastructures, and wearable health and fitness devices.
- How does the component handle latch-up performance?
The latch-up performance exceeds 250 mA per JESD 17.
- What is the purpose of the 3-state outputs?
The 3-state outputs are used for controlling data flow effectively.
- How should the output-enable (OE) input be handled during power up or power down?
The output-enable (OE) input should be tied to VCC through a pullup resistor to ensure the high-impedance state.
- What are the control inputs referenced to?
The control inputs VIH/VIL levels are referenced to VCCA voltage.
- Is the SN74ALVC164245DLG4 suitable for safety-critical applications?
No, it is not recommended for safety-critical applications without proper evaluation and compliance with relevant standards.
