CY327

System basis IC for engine or transmission control units

Application & Technical Summary

System supply and communication interfaces combined in one chip.

A configurable pre-regulator keeps the ECU running until as low as 3V. A switched mode buck converter for the microcontroller core reduces the power dissipation of your ECU by up to 4W.

Product benefits

Integrated CAN and LIN interface
VDA E-gas compliant
3 level Watchdog for VDA 2.0 compliance

Suitable for many microcontrollers

Switched mode μC core supply, adjustable from 0.9V to 1.525V

Technical Features


Type	System basis IC
Package	TQFP64_ePad TQFP100_ePad
Features	Buck / boost pre-regulator switched mode supply for µC core voltage Advanced 3 level watchdog operating range 3 V to 40 V Stop counter functions very quiescent current
Output voltages	System: 5 V / 450 mA, 3.3 V / 300 mA, 5 or 3.3 V / 250 mA Core supply 0.9 – 1,525 V / 1.2 A switch-mode Sensors: 3 x 5 V
Interfaces	SPI, 16-bit (3.3V) 1 x CAN 1 x LIN
Inputs	Ignition 3 wake up pins Wake up on CAN
Outputs	Main relay control: 1 x LSPS
VDD typ. [V]	14
Tj min [°C]	-40°C
Tj max [°C]	150°C

TQFP64_ePad (10 × 10 mm)
TQFP100_ePad (14 × 14 mm)

Product information

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Automotive System ICs