1 The SN74ALS642A-1NSR is a part manufactured by Texas Instruments (TI). Here are the specifications, descriptions, and features based on Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Part Number:** SN74ALS642A-1NSR
- **Technology Family:** ALS (Advanced Low-Power Schottky)
- **Package/Case:** SOP (Small Outline Package), 20-pin
- **Operating Temperature Range:** Commercial (0°C to 70°C)
- **Supply Voltage (VCC):** 4.5V to 5.5V
- **Logic Type:** Octal Bus Transceiver with 3-State Outputs
- **Number of Channels:** 8 (Octal)
- **Output Type:** 3-State
- **Propagation Delay Time:** Typically 8ns (varies with conditions)
- **Input/Output Compatibility:** TTL (Transistor-Transistor Logic)
### **Descriptions:**
The SN74ALS642A-1NSR is an octal bus transceiver designed for bidirectional communication between data buses. It features 3-state outputs, allowing multiple devices to share a common bus without interference. It is part of TI's ALS logic family, which offers a balance of speed and power efficiency.
### **Features:**
- **Bidirectional Data Flow:** Supports data transmission in both directions.
- **3-State Outputs:** Enables high-impedance state for bus isolation.
- **Wide Operating Voltage:** 4.5V to 5.5V.
- **Low Power Consumption:** ALS technology provides efficient power usage.
- **High-Speed Operation:** Typical propagation delay of 8ns.
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with standard TTL logic levels.
- **20-Pin SOP Package:** Compact surface-mount design.
This information is strictly factual from Ic-phoenix technical data files.
