Overview
The SN74LVCH16245ADL is a 16-bit (dual-octal) noninverting bus transceiver designed by Texas Instruments. This device is part of the Widebus™ family and is optimized for asynchronous communication between data buses. It operates within a voltage range of 1.65 V to 3.6 V, making it versatile for various applications. The SN74LVCH16245ADL can be used as two 8-bit transceivers or as a single 16-bit transceiver, allowing data transmission from the A bus to the B bus or vice versa based on the direction-control input. The device also features output-enable inputs to isolate the buses when necessary.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Operating Voltage (VCC) | 1.65 V to 3.6 V | |
| Input Voltage Range | Up to 5.5 V | |
| Maximum Propagation Delay (tpd) | 4 ns at 3.3 V | TA = 25°C |
| Output Ground Bounce (VOLP) | < 0.8 V at VCC = 3.3 V, TA = 25°C | |
| Output VOH Undershoot (VOHV) | > 2 V at VCC = 3.3 V, TA = 25°C | |
| Operating Temperature Range | -40°C to 125°C | |
| Package Type | SSOP (48 pins) | |
| Storage Temperature Range | -65°C to 150°C |
Key Features
- Member of the Texas Instruments Widebus™ family
- Operates from 1.65 V to 3.6 V
- Inputs accept voltages up to 5.5 V
- Supports mixed-mode signal operation on all ports (5-V input/output voltage with 3.3-V VCC)
- Ioff supports live insertion, partial-power-down mode, and back-drive protection
- Bus hold on data inputs eliminates the need for external pullup or pulldown resistors
- Latch-up performance exceeds 250 mA per JESD 17
- ESD protection exceeds JESD 22 (2000-V Human-Body Model, 200-V Machine Model)
Applications
- Electronic Points of Sale
- Test and Measurement
- Wearable Health and Fitness Devices
- Tablets
Q & A
- What is the operating voltage range of the SN74LVCH16245ADL? The operating voltage range is from 1.65 V to 3.6 V.
- Can the inputs of the SN74LVCH16245ADL handle voltages higher than the VCC? Yes, the inputs can accept voltages up to 5.5 V.
- What is the maximum propagation delay of the SN74LVCH16245ADL at 3.3 V? The maximum propagation delay is 4 ns at 3.3 V and TA = 25°C.
- Does the SN74LVCH16245ADL support mixed-mode signal operation? Yes, it supports mixed-mode signal operation on all ports (5-V input/output voltage with 3.3-V VCC).
- What is the purpose of the bus-hold circuitry in the SN74LVCH16245ADL? The bus-hold circuitry holds unused or undriven data inputs at a valid logic state, eliminating the need for external pullup or pulldown resistors.
- Is the SN74LVCH16245ADL protected against ESD? Yes, it has ESD protection exceeding JESD 22 (2000-V Human-Body Model, 200-V Machine Model).
- What are the package options for the SN74LVCH16245ADL? The device is available in SSOP (48 pins), TVSOP (48 pins), and other packages.
- What is the operating temperature range of the SN74LVCH16245ADL? The operating temperature range is from -40°C to 125°C.
- Can the SN74LVCH16245ADL be used in partial-power-down applications? Yes, it supports partial-power-down mode using Ioff circuitry.
- What is the storage temperature range for the SN74LVCH16245ADL? The storage temperature range is from -65°C to 150°C.
