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R7F100LLL3CFB Datasheet(PDF) 102 Page - Renesas Technology Corp

Part # R7F100LLL3CFB
Description  RENESAS MCU
PDF  148 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R7F100LLL3CFB Datasheet(HTML) 102 Page - Renesas Technology Corp

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RL78/L23
2. Electrical Characteristics
R01DS0502EJ0110 Rev.1.10
Page 102 of 145
Oct 31, 2025
Connection in the simplified SPI (CSI) communications with devices operating at different voltage levels
Remark 1.
Rb[Ω]: Communication line (SCKp, SOp) pull-up resistance, Cb[F]: Communication line (SCKp, SOp) load capacitance,
Vb[V]: Communication line voltage
Remark 2.
p: CSI number (p = 00, 01, 10, 20, 30, 31), g: PIM and POM number (g = 0 to 9, 12 to 14), m: Unit number,
n: Channel number (mn = 00 to 02, 10, 12, 13)
Remark 3.
fMCK: Serial array unit operation clock frequency
To set this operating clock, use the CKSmn bit in the serial mode register mn (SMRmn) (m: Unit number, n: Channel
number = 00).
Timing of serial transfer in the simplified SPI (CSI) communications in the master mode with devices operating at different
voltage levels when DAPmn = 0 and CKPmn = 0, or DAPmn = 1 and CKPmn = 1
SCKp
SOp
SCK
SI
SIp
SO
Vb
Rb
<Master>
Vb
Rb
RL78
microcontroller
User device
Input data
SIp
SOp
tKCY1
tKL1
tKH1
tSIK1
tKSI1
tKSO1
Output data
SCKp



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