The HEF4040BT is a 12-stage binary counter integrated circuit from Nexperia. Key Specifications: 1. Type: 12-stage binary counter 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 6. Pin Configuration: See datasheet Features: 1. 12-stage binary counter with carry-out 2. Positive edge-triggered 3. Low power consumption 4. High noise immunity 5. Wide operating temperature range 6. Compatible with TTL and CMOS logic 7. Master-reset input Applications: 1. Digital counters and dividers 2. Frequency dividers 3. Time-base generators 4. Industrial control systems 5. Automotive electronics 6. Medical devices 7. Consumer electronics Electrical Characteristics: 1. Propagation Delay (tpd): 30ns (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 HEF4040BT datasheet. Ordering Information: To order or replace this IC, ensure you have the following information: 1. Part number (HEF4040BT) 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 CD4040BE - ON Semiconductor MC14040B - STMicroelectronics 4040B Pin Configuration: | Pin | Function | | --- | --- | | 1 | Q0 | | 2 | Q1 | | 3 | Q2 | | 4 | Q3 | | 5 | Q4 | | 6 | Q5 | | 7 | Q6 | | 8 | Q7 | | 9 | Q8 | | 10 | Q9 | | 11 | Q10 | | 12 | Q11 | | 13 | Carry-out | | 14 | Clock input | | 15 | Master-reset | | 16 | Vdd | Would you like more information or have specific questions about this counter IC?