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Table 1.8

Analog (2 of 2)

Feature

Functional description

Temperature Sensor (TSN)

The on-chip Temperature Sensor (TSN) determines and monitors the die temperature for

reliable operation of the device. The sensor outputs a voltage directly proportional to the die

temperature, and the relationship between the die temperature and the output voltage is fairly

linear. The output voltage is provided to the ADC12 for conversion and can be further used by

the end application.

Table 1.9

Data processing

Feature

Functional description

Cyclic Redundancy Check (CRC)

calculator

The Cyclic Redundancy Check (CRC) generates CRC codes to detect errors in the data. The

bit order of CRC calculation results can be switched for LSB-first or MSB-first communication.

Additionally, various CRC-generation polynomials are available.

Data Operation Circuit (DOC)

The Data Operation Circuit (DOC) compares, adds, and subtracts 16-bit data. When a selected

condition applies, 16-bit data is compared and an interrupt can be generated.

Table 1.10

Security

Feature

Functional description

Security function

● ARMv8-M TrustZone security

● Secure pin multiplexing

● 128-bit unique ID

True Random Number Generator

(TRNG)

Table 1.11

I/O ports

Feature

Functional description

Programmable I/O ports

● I/O ports for the 64-pin LQFP

– I/O pins: 45

– Input pins: 5

– Pull-up resistors: 46

– N-ch open-drain outputs: 45

– 5-V tolerance: 11

● I/O ports for the 48-pin QFN

– I/O pins: 29

– Input pins: 5

– Pull-up resistors: 30

– N-ch open-drain outputs: 29

– 5-V tolerance: 6

● I/O ports for the 32-pin QFN

– I/O pins: 16

– Input pins: 5

– Pull-up resistors: 17

– N-ch open-drain outputs: 16

– 5-V tolerance: 4

● I/O ports for the 64-pin BGA

– I/O pins: 45

– Input pins: 5

– Pull-up resistors: 46

– N-ch open-drain outputs: 45

– 5-V tolerance: 11

● I/O ports for the 36-pin BGA

– I/O pins: 20

– Input pins: 4

– Pull-up resistors: 21

– N-ch open-drain outputs: 20

– 5-V tolerance: 5

RA4E2 Datasheet

1. Overview

R01DS0413EJ0150 Rev.1.50

May 29, 2026

Page 5 of 91

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