UPD78F1502AGK-GAK-AX Datasheet, PDF (923/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 31 ELECTRICAL SPECIFICATIONS
(2) Serial interface: Serial array unit (6/18)
Simplified I²C mode mode connection diagram (during communication at same potential)
SDAr
VDD
Rb
SDA
78K0R/Lx3
microcontrollers
SCLr
User's device
SCL
Simplified I²C mode serial transfer timing (during communication at same potential)
tLOW
1/fSCL
tHIGH
SCLr
SDAr
Remarks 1.
2.
Rb[Ω]:Communication line (SDAr) pull-up resistance,
Cb[F]: Communication line (SCLr, SDAr) load capacitance
r: IIC number (r = 10, 20)
tHD:DAT
tSU:DAT
R01UH0004EJ0501 Rev.5.01
907
Jun 20, 2011