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F24 Datasheet(PDF) 82 Page - Renesas Technology Corp

Part # F24
Description  RENESAS MCU
PDF  210 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

F24 Datasheet(HTML) 82 Page - Renesas Technology Corp

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RL78/F23, F24
3. ELECTRICAL SPECIFICATIONS (GRADE 3)
R01DS0446EJ0120 Rev.1.20
Page 82 of 207
Dec 31, 2025
3.5.2 Serial Interface IICA
(TA = -40 to +105
°C, 2.7 V ≤ EVDD0 = EVDD1 = VDD ≤ 5.5 V, VSS = EVSS0 = EVSS1 = 0 V)
Parameter
Symbol
Conditions
Normal Mode
Fast Mode
Fast Mode Plus
Unit
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
SCLA0 clock frequency
fSCL
Fast mode plus:
10 MHz
≤ fMCK
0
1000
kHz
Fast mode:
3.5 MHz
≤ fMCK
0
400
kHz
Normal mode:
1 MHz
≤ fMCK
0
100
kHz
Setup time of restart condition Note 1
tSU:STA
4.7
0.6
0.26
µs
Hold time
tHD:STA
4.0
0.6
0.26
µs
Hold time when SCLA0 = “L”
tLOW
4.7
1.3
0.5
µs
Hold time when SCLA0 = “H”
tHIGH
4.0
0.6
0.26
µs
Data setup time (reception)
tSU:DAT
250
100
50
ns
Data hold time (transmission) Note 2
tHD:DAT
0
3.45
0
0.9
0
µs
Setup time of stop condition
tSU:STO
4.0
0.6
0.26
µs
Bus-free time
tBUF
4.7
1.3
0.5
µs
Notes 1. The first clock pulse is generated after this period when the start/restart condition is detected.
2. The maximum value (MAX.) of tHD:DAT is during normal transfer and a wait state is inserted in the ACK
(acknowledge) timing.
Remark The maximum value of Cb (communication line capacitance) and the value of Rb (communication line pull-up
resistor) at that time in each mode are as follows.
Standard mode: Cb = 400 pF, Rb = 2.7 kΩ
Fast mode:
Cb = 320 pF, Rb = 1.1 kΩ
Fast mode plus: Cb = 120 pF, Rb = 1.1 kΩ
IICA serial transfer timing
tLOW
SCLA0
SDAA0
Stop
condition
tR
tHD:DAT
tHD:STA
tHIGH
tF
tSU:DAT
tSU:STA
tHD:STA
tSU:STO
Start
condition
Restart
condition
Stop
condition
tBUF
<R>
<R>
<R>



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