R5F103A8DSP-W0 데이터 시트보기 (PDF) - Renesas Electronics

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R5F103A8DSP-W0

RENESAS MCU True Low Power Platform (as low as 63 μA/MHz), 1.8V to 5.5V operation, 2 to 16 Kbyte Flash, 31 DMIPS at 24MHz, for General Purpose Applications

Renesas Electronics 

RL78/G12

2. ELECTRICAL SPECIFICATIONS (A, D: TA = −40 to +85°C)

Simplified I2C mode connection diagram (during communication at different potential)

SDAr

RL78

microcontroller

SCLr

Vb

Rb

Vb

Rb

SDA

User's device

SCL

Simplified I2C mode serial transfer timing (during communication at different potential)

t LOW

1/fSCL

t HIGH

SCLr

SDAr

tHD : DAT

tSU : DAT

Remarks 1.

2.

3.

4.

Rb [Ω]: Communication line (SDAr, SCLr) pull-up resistance, Cb [F]: Communication line (SDAr, SCLr)

load capacitance, Vb [V]: Communication line voltage

r: IIC Number (r = 00, 20)

fMCK: Serial array unit operation clock frequency

(Operation clock to be set by the serial clock select register m (SPSm) and the CKSmn bit of serial mode

register mn (SMRmn).

m: Unit number (m = 0,1), n: Channel number (n = 0))

Simplified I2C mode is supported only by the R5F102 products.

R01DS0193EJ0200 Rev.2.00

Sep 06, 2013

Page 51 of 106

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