R7KA8M2AFDCAM datasheet(159/295 Pages) RENESAS

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Table 2.61

SCI timing (Clock synchronous mode) (2 of 2)

Condition 1: VCC/VCC2 = 2.70 V or above

High drive output is selected in the Port Drive Capability bit in the PmnPFS register.

If SCI pins are specified across the VCC I/O and VCC2 I/O, characteristics below is guaranteed only when VCC = VCC2.

Condition 2: VCC/VCC2 = 1.62 V or above

Following pins have high-speed high-drive output selected in the Port Drive Capability bit in the PmnPFS register: SCK1_A, SCK1_C,

SCK3_A, SCK4_A, SCK4_B, SCK4_C and SCK6_B

Other pins have high drive output is selected in the Port Drive Capability bit in the PmnPFS register.

If SCI pins are specified across the VCC I/O and VCC2 I/O, characteristics below is guaranteed only when VCC=VCC2.

Parameter

High

Speed/

Default

VCC/VCC2

Symbol

Min

Max

Unit

Note

SCK clock rise and

fall time

Output

—

2.70 V or above

tSCKr, tSCKf

—

3.3

1.62 V or above

—

6.6

Input

—

1.62 V or above

—

0.1*3

tScyc

Data input setup

time

Master

High

Speed*1

2.70 V or above

tSU

2.6

—

1.62 V or above

2.6

—

Default*2

2.70 V or above

2.8

—

1.62 V or above

2.8

—

Slave

Default*2

2.70 V or above

3.3

—

1.62 V or above

5.3

—

Data input hold

time

Master

High

Speed*1

2.70 V or above

7.5

—

1.62 V or above

9.5

—

Default*2

2.70 V or above

7.5

—

1.62 V or above

9.5

—

Slave

Default*2

2.70 V or above

3.0

—

1.62 V or above

5.0

—

Data output delay

Master

High

Speed*1

2.70 V or above

tOD

—

1.62 V or above

—

Default*2

2.70 V or above

—

7.3

1.62 V or above

—

7.3

Slave

High

Speed*1

2.70 V or above

—

12.5

1.62 V or above

—

20.5

Default*2

2.70 V or above

—

18.5

1.62 V or above

—

26.5

Data rise and fall

time

Output

—

2.70 V or above

tDr, tDf

—

3.3

1.62 V or above

—

6.6

Input

—

1.62 V or above

—

µs

Note:

tTcyc: TCLK cycle.

Note 1. Must use pins that have a letter appended to their name, for instance _A, _B, _C, to indicate group membership. SCI0, SCI1, SCI2,

SCI3 and SCI9 are instance _A, SCI4 and SCI5 are instance _B, SCI6, SCI7 and SCI8 are instance _C.

Note 2. All pins of group membership can be used.

Note 3. 1 µs at the longest

RA8M2 Datasheet

2. Electrical Characteristics

R01DS0438EJ0130 Rev.1.30

Feb 27, 2026

Page 159 of 295

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