RA4T1 datasheet(18/89 Pages) RENESAS

18 / 89 page

Note 1. Ports P100, P101, P205, P206, P400, P401 and P407 to P411 are 5 V tolerant.

Note 2. Connect AVCC0 to VCC.

Note 3. See section 2.2.1. Tj/Ta Definition.

Note 4. Contact a Renesas Electronics sales office for information on derating operation when Ta = +85°C to +105°C. Derating is the

systematic reduction of load for improved reliability.

Caution: Permanent damage to the MCU might result if absolute maximum ratings are exceeded.

Table 2.2

Recommended operating conditions

Parameter

Symbol

Min

Typ

Max

Unit

Power supply voltages

VCC

2.7

—

3.6

VSS

—

Analog power supply voltages

AVCC0*1

—

VCC

—

AVSS0

—

Note 1. Connect AVCC0 to VCC. When the A/D converter, the D/A converter and the comparator are not in use, do not leave the AVCC0,

VREFH/VREFH0, AVSS0, and VREFL/VREFL0 pins open. Connect the AVCC0 and VREFH/VREFH0 pins to VCC, and the AVSS0

and VREFL/VREFL0 pins to VSS, respectively.

2.2

DC Characteristics

2.2.1

Tj/Ta Definition

Table 2.3

DC characteristics

Parameter

Symbol

Typ

Max

Unit

Test conditions

Permissible junction temperature

—

125

°C

High-speed mode

Low-speed mode

Subosc-speed mode

Note:

Make sure that Tj = Ta + θja × total power consumption (W), where total power consumption = (VCC - VOH) × ΣIOH + VOL × ΣIOL +

ICCmax × VCC.

2.2.2

I/O VIH, VIL

Table 2.4

I/O VIH, VIL (1 of 2)

Parameter

Symbol

Min

Typ Max

Unit

Input voltage

(except for

Schmitt trigger

input pins)

Peripheral

function pin

EXTAL (external clock input), SPI

(except RSPCK)

VIH

VCC × 0.8

—

VIL

—

VCC × 0.2

I3C (SMBus)

VIH

2.1

—

VCC + 3.6

(max 5.8)

VIL

—

0.8

RA4T1 Datasheet

2. Electrical Characteristics

R01DS0415EJ0140 Rev.1.40

May 29, 2026

Page 18 of 89

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