MK3200S

Overview

The MK3200S is a low-power clock oscillator manufactured by Integrated Device Technology (IDT), now part of Renesas Electronics. It generates a 32.768 kHz CMOS output from an external crystal. The device operates within a supply voltage range of 3.15 V to 3.45 V and consumes 3.5 µA in normal operation. It features a power-down pin and an Output Enable (OE) pin for tri-stating the output during in-circuit testing. The component is available in an 8-pin SOIC package with an industrial temperature rating of -40°C to +85°C.

Feature Summary

• Generates a 32.768 kHz CMOS clock output from an inexpensive parallel-mode crystal input.
• Low power consumption of 3.5 µA in normal operation mode.
• Includes dedicated Power Down (PD) and Output Enable (OE) pins for system control and testing.
• Available in 8-pin SOIC or MSOP packages with industrial temperature range (-40°C to +85°C).

Applications

• Real-time clock (RTC) systems requiring precise timekeeping.
• Microcontroller base clocks for low-frequency timing references.
• Battery-powered devices where low standby current is critical.
• In-circuit testing environments utilizing the tri-state output capability.

Procurement Notes

Verify that the specific order suffix matches the required temperature grade and packaging format. The 'SI' suffix indicates the industrial temperature range (-40°C to +85°C). Confirm whether the 'TR' suffix is required for tape-and-reel shipping or if tube packaging is acceptable. Ensure the source document confirms lead-free status if RoHS compliance is mandatory for the assembly process.

Selection Notes

Select the MK3200S when a fixed 32.768 kHz frequency is sufficient, as the device lacks programmable dividers or multipliers. Ensure the design accommodates the 3.15 V to 3.45 V operating voltage window. Verify that the PCB layout allows for the recommended 0.01µF decoupling capacitor placement near the VDD pin to minimize phase noise and EMI. Consider the 8-pin SOIC or MSOP footprint constraints during schematic capture.

Part Context

The MK3200 series was originally developed by Integrated Device Technology (IDT) before being acquired by Renesas Electronics. It serves as a cost-effective solution for replacing discrete crystal oscillators in applications requiring a stable 32.768 kHz reference. The device is part of a broader family of clock synthesizers, though it is distinct from higher-frequency MHz-output variants in the MK32xx line.

Replacement Considerations

Direct functional replacements include other parts from the MK3200 family such as MK3200SLF or MK3200GLF, provided the package and temperature specifications align. Cross-manufacturer equivalents must be verified against the 3.5 µA current draw, 32.768 kHz frequency accuracy (±30 ppm), and CMOS output voltage levels.