Overview
The SN74ABT16245ADL is a 16-bit noninverting 3-state transceiver designed by Texas Instruments for synchronous two-way communication between data buses. This device is part of the Texas Instruments Widebus Family and utilizes state-of-the-art EPIC-IIB BiCMOS design, which significantly reduces power dissipation. It can be used as two 8-bit transceivers or one 16-bit transceiver, allowing data transmission between the A and B buses based on the logic level at the direction-control (DIR) input. The output-enable (OE) input allows the device to be disabled, effectively isolating the buses.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range (VCC) | 4.5 | 5.5 | V | |
| High-Level Input Voltage (VIH) | 2 | V | ||
| Low-Level Input Voltage (VIL) | 0.8 | V | ||
| High-Level Output Current (IOH) | -24 | -32 | mA | |
| Low-Level Output Current (IOL) | 48 | 64 | mA | |
| Operating Temperature Range | -40 | 85 | °C | |
| Package Type | SSOP (DL) 48 pins |
Key Features
- Members of the Texas Instruments Widebus Family
- State-of-the-Art EPIC-IIB BiCMOS Design significantly reduces power dissipation
- Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C
- High-Impedance State During Power Up and Power Down
- Distributed VCC and GND Pin Configuration minimizes high-speed switching noise
- Flow-Through Architecture optimizes PCB layout
- High-Drive Outputs (–32-mA IOH, 64-mA IOL)
- Latch-Up Performance exceeds 500 mA per JESD 70
- ESD Protection exceeds 2000 V per MIL-STD-883, Method 3015; exceeds 200 V using Machine Model (C = 200 pF, R = 0)
- Package options include Plastic Thin Very Small-Outline (DGV), Shrink Small-Outline (DL), and Thin Shrink Small-Outline (DGG) packages, and 380-mil Fine-Pitch Ceramic (WD) Flat Package
Applications
The SN74ABT16245ADL is suitable for various applications requiring synchronous two-way communication between data buses. These include:
- Data transmission systems in computing and networking equipment
- Embedded systems requiring high-speed data transfer
- Industrial control systems where reliable data communication is crucial
- Telecommunication devices and networks
Q & A
- What is the primary function of the SN74ABT16245ADL?
The SN74ABT16245ADL is a 16-bit noninverting 3-state transceiver designed for synchronous two-way communication between data buses.
- What are the operating temperature ranges for the SN74ABT16245ADL?
The device operates from -40°C to 85°C.
- What package types are available for the SN74ABT16245ADL?
Available package types include SSOP (DL) with 48 pins, as well as other options like DGV, DGG, and WD.
- How does the device handle power-up and power-down states?
The device is in a high-impedance state during power up and power down. Above 2.1 V, the OE input should be tied to VCC through a pullup resistor to ensure the high-impedance state.
- What is the significance of the EPIC-IIB BiCMOS design?
The EPIC-IIB BiCMOS design significantly reduces power dissipation.
- What are the high-level and low-level output currents for the SN74ABT16245ADL?
The high-level output current (IOH) is -32 mA, and the low-level output current (IOL) is 64 mA.
- Does the device have ESD protection?
Yes, the device has ESD protection that exceeds 2000 V per MIL-STD-883, Method 3015, and 200 V using the Machine Model (C = 200 pF, R = 0).
- How does the distributed VCC and GND pin configuration benefit the device?
The distributed VCC and GND pin configuration minimizes high-speed switching noise.
- What is the flow-through architecture used for?
The flow-through architecture optimizes PCB layout.
- Can the SN74ABT16245ADL be used as multiple smaller transceivers?
Yes, the device can be used as two 8-bit transceivers or one 16-bit transceiver.
