STCL1120YBFCWY5

Programmable Timers And Oscillators Overview

The STCL1120YBFCWY5 is a fixed-frequency silicon oscillator operating at 12.0 MHz, manufactured by STMicroelectronics. It functions as a drop-in replacement for ceramic resonators and crystals in microprocessor clock applications. The device operates on a single 5 V supply (4.5 to 5.5 V) with an active current of up to 900 µA and standby current of 3 µA when disabled. It features a push-pull CMOS-compatible square wave output, ±1.5% frequency accuracy over all conditions, and fast startup within 20 µs. The component is housed in a SOT23-5L package and supports temperature ranges of –20 to +85 °C.

Programmable Timers And Oscillators Feature Summary

• Fixed 12.0 MHz frequency with ±1.5% accuracy across voltage and temperature variations
• Ultra-low standby current of 3 µA via active-high Chip Enable input
• Fast startup time of 20 µs max, significantly faster than crystal oscillators
• CMOS-compatible push-pull output requiring no external components

Programmable Timers And Oscillators Applications

• Microprocessor and microcontroller unit clock generation
• Motor control systems
• Home appliances and building control units
• Low-speed USB interface applications
• Display drivers

Programmable Timers And Oscillators Procurement Notes

Verify the product status before integration, as this family is marked 'Not recommended for new design'. Confirm that the specific ordering suffix matches the required temperature range and disable mode characteristics defined in the datasheet. Ensure the application design accounts for the lack of internal pull-up resistors on the Chip Enable pin.

Programmable Timers And Oscillators Selection Notes

Select this model for designs requiring a 12.0 MHz clock source where tight timing precision is not critical. It serves as a direct alternative to ceramic resonators, offering superior immunity to shock and vibration. Designers must ensure the Chip Enable signal remains permanently defined, as the input lacks an internal pull-up resistor. Verify load capacitance requirements against the specified 12 pF standard.

Programmable Timers And Oscillators Part Context

This part belongs to the STCL11xx0 high-frequency silicon oscillator family, which includes variants for 10 MHz (STCL1100) and 16 MHz (STCL1160). All members share identical pinouts, package styles, and operational principles, differing primarily in their factory-trimmed output frequencies. The family is designed to simplify PCB layout by eliminating external tuning components.

Programmable Timers And Oscillators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.