MK3200SI

Overview

The MK3200SI is a low-power clock oscillator manufactured by IDT, now part of Renesas Electronics. It generates a 32.768 kHz CMOS output from an external crystal input. The device operates within a supply voltage range of 2.5 V to 5 V and consumes only 3.5 µA in normal operation. Packaged in an 8-pin SOIC format, it features dedicated pins for power down control and output enable functionality, allowing the output to be tri-stated for in-circuit testing. The component supports industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Generates a 32.768 kHz CMOS clock signal from an inexpensive parallel-mode crystal input.
• Operates on a single supply voltage between 2.5 V and 5 V with a typical current consumption of 3.5 µA.
• Includes a Power Down (PD) pin to turn off the chip and an Output Enable (OE) pin to tri-state the output.
• Available in an 8-pin SOIC package suitable for surface mount technology.

Applications

• Real-time clock circuits requiring precise timekeeping.
• Microcontroller systems utilizing low-frequency timing references.
• Battery-powered devices where low standby current is critical.
• In-circuit testing environments requiring output isolation via tri-state capability.

Procurement Notes

Verify that the specific order number matches the required package type and temperature grade. The base model MK3200SI denotes the industrial temperature version (-40°C to +85°C) in the 8-pin SOIC package. Confirm whether tube or tape-and-reel shipping options are needed, as indicated by suffixes such as TR. Ensure compatibility with lead-free manufacturing processes if environmental compliance is required.

Selection Notes

Select the MK3200SI when a fixed 32.768 kHz output is sufficient without frequency multiplication. Ensure the connected crystal has a 12 pF load capacitance for optimal accuracy. Use series termination resistors for clock traces exceeding one inch to maintain signal integrity. Verify that the system power supply remains stable within the 2.5 V to 5 V range to guarantee correct logic levels.

Part Context

The MK3200 belongs to the IDT MK32xx family of clock oscillators designed to replace discrete VCXOs and crystals. Integrated Device Technology was acquired by Renesas Electronics, which continues to support this product line. This component serves as a cost-effective solution for generating standard low-frequency clocks in embedded applications.

Replacement Considerations

Direct substitutes include other variants within the MK3200 family, such as the commercial grade MK3200S or the MSOP packaged MK3200G. Cross-manufacturer replacements must match the 32.768 kHz frequency, CMOS output voltage levels, and 8-pin SOIC footprint while maintaining similar current consumption characteristics.