The HEF4538BT is a monostable multivibrator integrated circuit from Nexperia. Key Specifications: 1. Type: Monostable multivibrator 2. Logic Family: CMOS 3. Supply Voltage (Vdd): 4.5V to 15V 4. Operating Temperature: -40°C to 125°C 5. Package: SO16 (SOT109), 16-pin Features: 1. Monostable multivibrator with adjustable pulse width 2. Low power consumption 3. High noise immunity 4. Wide operating temperature range 5. Compatible with TTL and CMOS logic 6. Trigger input with Schmitt trigger 7. Adjustable pulse width using external RC network 8. Output pulse width: 10μs to 10s (typ) Applications: 1. Timing and delay circuits 2. Pulse generation and shaping 3. Frequency division and multiplication 4. Industrial control systems 5. Automotive electronics 6. Medical devices 7. Consumer electronics Electrical Characteristics: 1. Propagation Delay (tpd): 20ns (typ) at 10V 2. Power Dissipation (Pd): 1μW (typ) at 5V 3. Input Current (Iin): 1μA (typ) at 5V 4. Output Current (Iout): 4mA (min) at 5V Standards Compliance: 1. IEC 60950-1 (Safety Requirements) 2. UL 94V-0 (Flammability Rating) 3. RoHS compliant Dimensions: 1. Length: 10.2mm (0.402in) 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 HEF4538BT datasheet. Ordering Information: To order or replace this IC, ensure you have the following information: 1. Part number (HEF4538BT) 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 CD4538BE - ON Semiconductor MC14538B - STMicroelectronics 4538B Pin Configuration: | Pin | Function | | --- | --- | | 1 | Trigger input | | 2 | Reset input | | 3 | Output | | 4 | GND | | 5 | Vdd | | 6 | External capacitor (Cext) | | 7 | External resistor (Rext) | | 8 | NC | | 9 | NC | | 10 | NC | | 11 | NC | | 12 | NC | | 13 | NC | | 14 | NC | | 15 | NC | | 16 | NC | Would you like more information or have specific questions about this monostable multivibrator?