User Module Datasheet: Internal Temperature Sensor Measurement Datasheet FlashTempV 2.40 (CY8C29x66, CY8C27x43, CY8C24xx3, CY8C24x94, CY8C23x33, CY8CLED04/08/16, CY8CLED0xD, CY8CLED0xG, CY8C28x45, CY8CPLC20, CY8CLED16P01, CY8C28xx3, CY8C28x52)

Features and Overview

• Range of -40°C to 85°C
• Accuracy of ± 20°C with no calibration
• Single PSoC block implementation
• 8-bit 2’s complement output in degrees Celsius
   

The FlashTemp User Module gives a coarse temperature measurement for the bFlashWriteBlock routine, which varies its programming pulse width with temperature. A single switch capacitor analog block is used and requires no calibration. The output of the FlashTemp User Module is the junction temperature of the PSoC microcontroller in a 2’s complement format, with 1 count per  °C.