MEMS oscillator replacing a 32.768 kHz crystal – what changes
The DSC6001HI2B-032K768 is a MEMS-based XO (Standard) that outputs a 32.768 kHz CMOS clock, directly replacing a quartz crystal with the Enable/Disable function on pin 1. The MEMS resonator eliminates crystal start-up time and frequency drift from mechanical shock — the ±25 ppm frequency stability holds across the full -40°C to 85°C industrial range.
Automotive qualification – AEC-Q100 Grade 1
The -40°C to 85°C operating range corresponds to Grade 1 of the AEC-Q100 standard, covering under-hood and cabin environments. The 1.8V to 3.3V supply range means it can run from the same rail as the MCU without a separate LDO.
Package and board layout – 4-VFLGA
Housed in a 4-VFLGA (1.60 mm × 1.20 mm, 0.89 mm seated height), this surface-mount oscillator fits a compact clock tree. The 0.50 mm pitch LGA footprint requires careful fan-out — typically a 4-layer board keeps the supply decoupling close. The Enable/Disable input allows the clock to be gated for power-saving modes without an external AND gate.