Datasheet

RL78/G14 2. ELECTRICAL SPECIFICATIONS (A, D: TA = -40 to +85 C)
R01DS0053EJ0200 Rev. 2.00 Page 97 of 187
Oct 25, 2013
Simplified I
2
C mode connection diagram (during communication at different potential)
Simplified I
2
C mode serial transfer timing (during communication at different potential)
Remark 1. Rb[]: Communication line (SDAr, SCLr) pull-up resistance, Cb[F]: Communication line (SDAr, SCLr) load capacitance,
V
b[V]: Communication line voltage
Remark 2. r: IIC number (r = 00, 01, 10, 11, 20, 30, 31), g: PIM, POM number (g = 0, 1, 3 to 5, 14)
Remark 3. fMCK: Serial array unit operation clock frequency
(Operation clock to be set by the CKSmn bit of serial mode register mn (SMRmn). m: Unit number (m = 0, 1),
n: Channel number (n = 0, 2), mn = 00, 01, 02, 10, 12, 13)
RL78 microcontroller
SDAr
SCLr
User’s device
SDA
SCL
Vb
Rb
Vb
Rb
SDAr
SCLr
1/fSCL
tLOW tHIGH
tSU: DATtHD: DAT