R8C datasheet(43/60 Pages) RENESAS

номер детали	R8C

подробное описание детали	RENESAS MCU

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R8C/38A Group

5. Electrical Characteristics

REJ03B0274-0120 Rev.1.20

Page 43 of 57

Jul 31, 2010

Notes:

1. VCC = 1.8 to 5.5 V, VSS = 0 V, and Topr =

−20 to 85°C (N version), unless otherwise specified.

2. 1tCYC = 1/f1(s)

Figure 5.7

I/O Timing of I2C bus Interface

Table 5.16

Timing Requirements of I2C bus Interface

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

tSCL

SCL input cycle time

12tCYC + 600 (2)

——

tSCLH

SCL input “H” width

3tCYC + 300 (2)

——

tSCLL

SCL input “L” width

5tCYC + 500 (2)

——

tsf

SCL, SDA input fall time

—

300

tSP

SCL, SDA input spike pulse rejection time

—

1tCYC (2)

tBUF

SDA input bus-free time

5tCYC (2)

——

tSTAH

Start condition input hold time

3tCYC (2)

——

tSTAS

Retransmit start condition input setup time

3tCYC (2)

——

tSTOP

Stop condition input setup time

3tCYC (2)

——

tSDAS

Data input setup time

1tCYC + 40 (2)

——

tSDAH

Data input hold time

—

SDA

SCL

Notes:

1. Start condition

2. Stop condition

3. Retransmit start condition

tBUF

VIH

VIL

P (2)

S (1)

tSTAH

tSCLH

tSCLL

tSf

tSr

tSCL

tSDAH

Sr (3)

P (2)

tSDAS

tSTAS

tSP

tSTOP

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