3.3-V ABT Scan Test Devices With 20-Bit Universal Bus Transceivers The SN74LVTH18504A is a 20-bit universal bus driver manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:
### **Specifications:**
- **Technology Family:** LVTH (Low-Voltage BiCMOS Technology with 5V Tolerant Inputs/Outputs)
- **Supply Voltage Range:** 2.7V to 3.6V
- **Input Voltage Range (Tolerant):** 0V to 5.5V
- **Output Drive Capability:** ±12mA at 3.3V
- **Operating Temperature Range:** -40°C to 85°C
- **Package Options:** 56-pin SSOP (Shrink Small Outline Package) and TSSOP (Thin Shrink Small Outline Package)
- **Logic Type:** Universal Bus Driver
- **Number of Bits:** 20
- **Propagation Delay:** Typically 4.5ns at 3.3V
### **Descriptions:**
The SN74LVTH18504A is a high-performance, 20-bit universal bus driver designed for 3.3V systems. It features 5V-tolerant inputs and outputs, making it compatible with mixed-voltage environments. The device supports bidirectional data flow with separate output-enable (OE) and direction-control (DIR) inputs. It is optimized for low-voltage operation while maintaining high-speed performance.
### **Features:**
- **5V-Tolerant Inputs/Outputs:** Allows interfacing with 5V logic signals.
- **Bus-Hold on Data Inputs:** Eliminates the need for external pull-up/pull-down resistors.
- **High-Speed Operation:** Optimized for 3.3V systems with fast propagation delays.
- **Bidirectional Data Flow:** Controlled by DIR and OE pins.
- **Low Power Consumption:** Features reduced power dissipation compared to standard TTL logic.
- **ESD Protection:** Exceeds 2000V per JESD 22 (Human Body Model).
- **Live Insertion/Withdrawal Protection:** Supports hot-plugging in backplane applications.
This information is strictly factual and sourced from TI's official documentation.
