The 74HC244D is an octal buffer/line driver integrated circuit from Nexperia. Key Specifications: 1. Type: Octal buffer/line driver 2. Logic Family: HC (High-Speed CMOS) 3. Supply Voltage (Vdd): 2V to 6V 4. Operating Temperature: -40°C to 125°C 5. Package: SO20 (SOT163), 20-pin Features: 1. Eight buffers/drivers with 3-state outputs 2. High-speed operation: tpd = 10ns (typ) at 5V 3. Low power consumption: ICC = 1μA (typ) at 5V 4. High noise immunity: VNH = 2.4V (typ) at 5V 5. Compatible with TTL and CMOS logic 6. Symmetrical output impedance 7. 3-state outputs for bus-oriented applications Applications: 1. Digital logic circuits 2. Data transmission and reception 3. Bus interfacing and expansion 4. Industrial control systems 5. Automotive electronics 6. Medical devices 7. Consumer electronics Electrical Characteristics: 1. Propagation Delay (tpd): 10ns (typ) at 5V 2. Power Dissipation (Pd): 1μW (typ) at 5V 3. Input Current (Iin): 1μA (typ) at 5V 4. Output Current (Iout): 4mA (min) at 5V 5. Output Voltage (Vout): 0.5V to 5.5V Standards Compliance: 1. IEC 60950-1 (Safety Requirements) 2. UL 94V-0 (Flammability Rating) 3. RoHS compliant Dimensions: 1. Length: 12.8mm (0.504in) 2. Width: 7.5mm (0.295in) 3. Height: 2.45mm (0.096in) 4. Pitch: 1.27mm (0.05in) Datasheet: For detailed specifications, please refer to the Nexperia 74HC244D datasheet. Ordering Information: To order or replace this IC, ensure you have the following information: 1. Part number (74HC244D) 2. Quantity required You can purchase Nexperia ICs from authorized distributors, such as: - Diode House Equivalent Parts: Some equivalent parts from other manufacturers are: - Texas Instruments SN74HC244D - ON Semiconductor MC74HC244D - STMicroelectronics 74HC244D Pin Configuration: | Pin | Function | | --- | --- | | 1 | 1A | | 2 | 1Y | | 3 | 2A | | 4 | 2Y | | 5 | 3A | | 6 | 3Y | | 7 | 4A | | 8 | 4Y | | 9 | 5A | | 10 | 5Y | | 11 | 6A | | 12 | 6Y | | 13 | 7A | | 14 | 7Y | | 15 | 8A | | 16 | 8Y | | 17 | OE | | 18 | GND | | 19 | Vdd | | 20 | NC | Would you like more information or have specific questions about this buffer/line driver?