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RL78/D1A User's Manual: Hardware - Renesas

RL78/D1A User's Manual: Hardware - Renesas

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Under development<br />

Preliminary document<br />

Specifications in this document are tentative and subject to change.<br />

<strong>RL78</strong>/<strong>D1A</strong> CHAPTER 33 ELECTRICAL SPECIFICATIONS (L GRADE PRODUCT) (TARGET)<br />

33.5.5 Serial interface: simplified IIC operation<br />

TA = -40 to +105 C<br />

2.7 V VDD = EVDD0 = EVDD1 = SMVDD0 = SMVDD1 5.5 V, VSS = EVSS0 = EVSS1 = SMVSS0 = SMVSS1 = 0 V<br />

Items Symbols Conditions Min. Max. Unit<br />

SCL clock frequency fSCL Rb = 3 k, Cb = 100 pF 400 kHz<br />

Hold time during SCL = ”L” tLOW Rb = 3 k, Cb = 100 pF 1150 ns<br />

Hold time during SCL = ”H” tHIGH Rb = 3k, Cb = 100 pF 1150 ns<br />

Data set up time (reception) tSU;DAT Rb = 3 k, Cb = 100 pF 1/fMCK+63 ns<br />

Data hold time (transmission)<br />

tHD;DAT Rb = 3 k, Cb = 100 pF 0 355 ns<br />

Figure 33-9 simplified IIC connection diagram<br />

SDA SDA<br />

<strong>D1A</strong><br />

<strong>User's</strong> device<br />

SCL SCL<br />

Figure 33-10. Simplified I 2 C mode serial transfer timing<br />

R01UH0317EJ0004 Rev. 0.04 1267<br />

Feb. 22, 2013<br />

VDD<br />

Rb

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