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RL78 датащи(PDF) 70 Page - Renesas Technology Corp |
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RL78 датащи(HTML) 70 Page - Renesas Technology Corp |
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70 / 100 page ![]() RL78/G14 2. ELECTRICAL SPECIFICATIONS R01DS0053EJ0100 Rev. 1.00 Page 70 of 97 Feb 21, 2012 Caution The pins mounted depend on the product. Refer to 1.3.1 30-pin products to 1.3.10 100-pin products. Simplified I2C mode mode connection diagram (during communication at same potential) Simplified I2C mode serial transfer timing (during communication at same potential) Caution Select the TTL input buffer and the N-ch open drain output (EVDD0 tolerance) mode for the SDAr pin and the N-ch open drain output (EVDD0 tolerance) mode for the SCLr pin by using port input mode register g (PIMg) and port output mode register h (POMh). Remark 1. Rb[ ]: Communication line (SDAr) pull-up resistance, Cb[F]: Communication line (SDAr, SCLr) load capacitance Remark 2. r: IIC number (r = 00, 01, 10, 11, 20, 21, 30, 31), g: PIM number (g = 0, 1, 3 to 5, 14), h: POM number (h = 0, 1, 3 to 5, 7, 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 to 03, 10 to 13) SDAr SCLr User’s device SDA SCL VDD Rb RL78/G14 SDAr SCLr 1/fSCL tLOW tHIGH tSU: DAT tHD: DAT |
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