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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 74ALVCHR |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 12mA, 12mA |
| Voltage - Supply | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 48-BSSOP (0.295", 7.50mm Width) |
| Supplier Device Package | 48-SSOP |
The SN74ALVCHR162245DLR is a low-voltage dual-channel non-inverting transceiver from Texas Instruments' 74ALVCHR family. Operating from 1.65V to 3.6V, it supports bidirectional data flow with 3-State outputs and 12mA drive capability. The integrated bus-hold circuitry eliminates the need for external pull-up resistors, simplifying design. Packaged in a 48-pin BSSOP, it is perfect for space-constrained, low-power applications such as portable devices, memory interfacing, and mixed-voltage systems.
- Wide 1.65V-3.6V Supply: Compatible with 1.8V, 2.5V, and 3.3V logic, reducing design complexity.
- Bus-Hold Function: Eliminates floating inputs and external resistors, saving board space.
- Bidirectional Transceiver: Supports data flow in both directions, ideal for shared buses.
- Low Power Consumption: Suitable for battery-operated portable devices.
- 3-State Outputs: Enables bus isolation and multiplexing.
Low-Voltage Bus Transceiving
In battery-powered IoT devices, the 1.65V-3.6V range allows direct interfacing with 1.8V microcontrollers and 3.3V peripherals, eliminating the need for external level shifters.
Memory Module Interfacing
The bus-hold feature (indicated by 'R' in the part number) prevents floating inputs, making it ideal for DDR memory modules where signal integrity is critical at low voltages.
Mixed-Voltage System Bridging
With its wide voltage range, it can bridge 1.8V logic to 2.5V or 3.3V logic, simplifying design in multi-voltage consumer electronics like smartphones and tablets.
Hot-Swap Backplane Applications
The 3-State outputs allow boards to be inserted or removed from a live backplane without causing bus contention, crucial for telecom line cards.
Portable Instrumentation
Low power consumption and small package make it suitable for handheld test equipment where battery life and board space are at a premium.
FPGA Configuration Interfaces
It can buffer configuration data between an FPGA and flash memory, ensuring clean signals at low voltages during power-up sequences.
- Q: What logic family does the SN74ALVCHR162245DLR belong to?
- A: It is part of the 74ALVCHR family, featuring low-voltage, high-speed CMOS with bus-hold.
- Q: What is the function of this device?
- A: It is a dual-channel, non-inverting transceiver with 3-State outputs.
- Q: How many channels are available?
- A: It provides 2 channels, each capable of bidirectional data flow.
- Q: What is the voltage range?
- A: It operates from 1.65V to 3.6V, ideal for low-power 1.8V, 2.5V, and 3.3V systems.
- Q: What is the output current?
- A: It can source and sink 12mA, suitable for standard CMOS loads.
- Q: What package is used?
- A: It comes in a 48-pin BSSOP (0.295", 7.50mm Width) package.
SN74ALVCHR162245DLR.pdf
- Q: What logic family does the SN74ALVCHR162245DLR belong to?
- A: It is part of the 74ALVCHR family, featuring low-voltage, high-speed CMOS with bus-hold.
- Q: What is the function of this device?
- A: It is a dual-channel, non-inverting transceiver with 3-State outputs.
- Q: How many channels are available?
- A: It provides 2 channels, each capable of bidirectional data flow.
- Q: What is the voltage range?
- A: It operates from 1.65V to 3.6V, ideal for low-power 1.8V, 2.5V, and 3.3V systems.
- Q: What is the output current?
- A: It can source and sink 12mA, suitable for standard CMOS loads.
- Q: What package is used?
- A: It comes in a 48-pin BSSOP (0.295", 7.50mm Width) package.