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RL78/G1A
CHAPTER 30 ELECTRICAL SPECIFICATIONS (G: INDUSTRIAL APPLICATIONS T
A
=
−
40 to +105
°
C)
R01UH0305EJ0200 Rev.2.00 930
Jul 04, 2013
Simplified I
2
C mode mode connection diagram (during communication at same potential)
RL78
microcontroller
SDAr
SCLr
SDA
SCL
User device
V
DD
R
b
Simplified I
2
C mode serial transfer timing (during communication at same potential)
SDAr
t
LOW
tHIGH
tHD : DAT
SCLr
t
SU : DAT
1/fSCL
Remarks 1. Rb[Ω]: Communication line (SDAr) pull-up resistance, Cb[F]: Communication line (SDAr, SCLr) load
capacitance
2. r: IIC number (r = 00, 01, 10, 11, 20, 21), g: PIM number (g = 0, 1), h: POM number (h = 0, 1)
3. f
MCK: Serial array unit operation clock frequency
(Operation clock to be set by the CKSmn bit of serial mode register mn (SMRmn). m: Unit number,
n: Channel number, mn = 00 to 03, 10, 11)