Overview
The SN74LVCC4245ADWRG4 is an 8-bit (octal) noninverting bus transceiver produced by Texas Instruments. This device is designed for asynchronous communication between data buses and utilizes two separate power-supply rails. The A port (VCCA) is dedicated to accept a 5-V supply level, while the configurable B port (VCCB) accepts voltages from 3 V to 5 V, enabling translation between 3.3-V and 5-V environments and vice versa. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input allows for disabling the device, effectively isolating the buses.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 24-SOIC (0.295", 7.50mm Width) |
| Number of Pins | 24 |
| Channels per Circuit | 8 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C to 85°C |
| Output Type | Tri-State, Non-Inverted |
| VCCA Voltage Range | 4.5 V to 5.5 V |
| VCCB Voltage Range | 2.7 V to 5.5 V |
| Static Current (ICCA, ICCB) | 0.08 mA each |
| Continuous Output Current | ±50 mA |
| RoHS Compliance | Yes |
Key Features
- Direction-controlled translation between two power-supply rails (VCCA and VCCB)
- Supports voltage translation from 3.3 V to 5 V and vice versa
- Tri-State outputs for bus isolation
- Output-enable (OE) input for disabling the device
- 24-SOIC package with a width of 7.5 mm and length of 15.4 mm
- Operating temperature range from -40°C to 85°C
Applications
- Personal Electronics
- Enterprise
- Telecom
- GPIO (General Purpose Input/Output)
- MDIO (Management Data Input/Output)
- PMBus (Power Management Bus)
- SMBus (System Management Bus)
- SDIO (Secure Digital Input/Output)
- UART (Universal Asynchronous Receiver-Transmitter)
- I2C (Inter-Integrated Circuit)
Q & A
- What is the primary function of the SN74LVCC4245ADWRG4?
The primary function is to act as an 8-bit noninverting bus transceiver for asynchronous communication between data buses, allowing voltage translation between 3.3 V and 5 V environments.
- What are the voltage ranges for VCCA and VCCB?
VCCA ranges from 4.5 V to 5.5 V, and VCCB ranges from 2.7 V to 5.5 V.
- What is the package type and pin count of the SN74LVCC4245ADWRG4?
The package type is 24-SOIC with a pin count of 24.
- What is the operating temperature range of the device?
The operating temperature range is from -40°C to 85°C.
- Is the SN74LVCC4245ADWRG4 RoHS compliant?
Yes, the device is RoHS compliant.
- What are the key applications of the SN74LVCC4245ADWRG4?
The device is used in various applications including personal electronics, enterprise, telecom, GPIO, MDIO, PMBus, SMBus, SDIO, UART, and I2C.
- How does the direction-control (DIR) input function?
The DIR input determines the direction of data transmission between the A and B buses.
- What is the purpose of the output-enable (OE) input?
The OE input can be used to disable the device, effectively isolating the buses.
- What is the maximum continuous output current of the device?
The maximum continuous output current is ±50 mA.
- Is the SN74LVCC4245ADWRG4 recommended for new designs?
Yes, the device is active and recommended for new designs.
