RA4E2 datasheet(58/91 Pages) RENESAS

tên linh kiện	RA4E2

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0.7×VDD

0.3×VDD

tCR

tCF

tHIGH

tDIG_H

tLOW

tDIG_L

Figure 2.43

tDIG_H and tDIG_L

ACK

SDA

RnW

ACK

SCL

SDR Transfer

0.7×VDD

0.3×VDD

0.7×VDD

0.3×VDD

= Open-Drain Pull-Up class

= High Speed Active Push-Pull Drive

0.7×VDD

SDA

ACK

0.3×VDD

RnW

MST_SDA

0.7×VDD

0.3×VDD

0.7×VDD

0.3×VDD

SLV_SDA

SCL

tSCO*1

Timing

parameters used

tSU_OD

Open-Drain

tSCO*1

Open-Drain

or Push-Pull

tSU_PP

Push-Pull

0.7×VDD

0.3×VDD

Transition from

Open-Drain to

Push-Pull

SCL clocks are shown identical for OD and PP

even though they differ substantially

Note:

Open-Drain: Master releases SDA after a suitable delay from SCL edges

Push-Pull: Master drives SDA after a suitable delay from SCL edges

Note 1: tSCO is depicted for informative purposes only

= Active Drive by Master or Slave

= Open-Drain Pull-Up class by Master

= High-Z by Slave

Figure 2.44

I3C data transfer – ACK by slave

RA4E2 Datasheet

2. Electrical Characteristics

R01DS0413EJ0150 Rev.1.50

May 29, 2026

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