Overview
The SN74VMEH22501ADGVR is a high-performance 8-bit universal bus transceiver produced by Texas Instruments. This device is designed to provide a high-speed interface between cards operating at LVTTL (Low-Voltage Transistor-Transistor Logic) logic levels and VME64, VME64x, or VME320 backplane topologies. It integrates two 1-bit three-wire bus transceivers and supports various modes of data transfer, including transparent, latched, and flip-flop modes. The SN74VMEH22501ADGVR is part of the Texas Instruments Widebus™ family and is known for its robust signal integrity and reduced electromagnetic interference (EMI).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | -0.5 to 4.6 | V |
| Input Voltage Range | -0.5 to 7 | V |
| Output Current (Low State) | -50 to -100 | mA |
| Output Current (High State) | 50 to 100 | mA |
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | TVSOP (DGV) | |
| ESD Protection | 2000-V Human-Body Model, 200-V Machine Model, 1000-V Charged-Device Model |
Key Features
- High-speed interface between LVTTL logic levels and VME64, VME64x, or VME320 backplane topologies.
- 8-bit universal bus transceiver with two integral 1-bit three-wire bus transceivers.
- Supports transparent, latched, and flip-flop modes of data transfer.
- ESD protection exceeds JESD 22 standards (2000-V Human-Body Model, 200-V Machine Model, 1000-V Charged-Device Model).
- OEC™ circuitry improves signal integrity and reduces electromagnetic interference (EMI).
- 5-V tolerant inputs and 3.3-V VCC operation.
- High-drive capability (–48 mA/64 mA) on B-port outputs and (–12 mA/12 mA) on Y and A-port outputs.
- Live insertion support with power-up 3-state and BIAS VCC).
- Bus hold on 3A-port data inputs and 26-Ω equivalent series resistor on 3A ports and Y outputs).
Applications
The SN74VMEH22501ADGVR is suitable for various high-speed data transmission applications, particularly in systems that require compliance with VME64, 2eVME, and 2eSST protocols. It is commonly used in:
- VME (VersaModule Eurocard) bus systems.
- High-speed data acquisition and processing systems.
- Industrial control and automation systems.
- Telecommunication equipment.
- Embedded systems requiring robust and reliable data transfer.
Q & A
- What is the primary function of the SN74VMEH22501ADGVR?
The primary function is to provide a high-speed interface between cards operating at LVTTL logic levels and VME64, VME64x, or VME320 backplane topologies).
- What are the operating temperature ranges for this device?
The operating temperature range is from -40°C to 85°C).
- What type of ESD protection does this device offer?
The device offers ESD protection exceeding JESD 22 standards (2000-V Human-Body Model, 200-V Machine Model, 1000-V Charged-Device Model)).
- Is the device 5-V tolerant?
- What is the package type for the SN74VMEH22501ADGVR?
The package type is TVSOP (DGV)).
- Does the device support live insertion?
- What are the typical output current capabilities of the device?
The B-port outputs can drive up to 64 mA and sink up to 48 mA, while the Y and A-port outputs can drive and sink up to 12 mA each).
- Is the device compliant with specific bus protocols?
- What is the purpose of the OEC™ circuitry in this device?
The OEC™ circuitry improves signal integrity and reduces electromagnetic interference (EMI)).
- Can the device operate in different modes of data transfer?
