R7F100LLL3CFB datasheet(128/148 Pages) RENESAS

128 / 148 page

RL78/L23

2. Electrical Characteristics

R01DS0502EJ0110 Rev.1.10

Page 128 of 145

Oct 31, 2025

2. 1/3 bias method, VL2 reference (MDSET2 to MDSET0 = 101B, LBAS1 to LBAS0 = 01B)

Note 1.

C1 to C4 are the capacitors that are to be connected to the LCD drive voltage pins of the MCU.

C1 is to be connected between CAPH and CAPL.

C2 is to be connected between VL1 and GND.

C3 is to be connected between VL2 and GND.

C4 is to be connected between VL4 and GND.

C1 = C2 = C3 = C4 = 0.47 µF ±30%

Note 2.

This is the time required to wait from when the reference voltage is specified by using the VLCD register (or when the

internal voltage boosting method is selected (MDSET2 to MDSET0 = 101B) if the default reference voltage is used) until

voltage boosting starts (VLCON = 1).

Note 3.

This is the wait time from when voltage boosting is started (VLCON = 1) until display is enabled (LCDON = 1).

(TA = -40 to +105°C, VL2 (Max.) + 0.1 V ≤ VDD ≤ 5.5 V, VSS = EVSS = 0 V)

Item

Symbols

Conditions

Min.

Typ.

Max.

Unit

VL1 output voltage

VL1

C1 to C4Note 1 = 0.47 µF

1/2VL2

-5%

1/2VL2

VL2 output voltage

VL2

C1 to C4Note 1

= 0.47 µF

VLCD4-0 = 04H

1.94

2.02

2.11

VLCD4-0 = 05H

2.00

2.09

2.18

VLCD4-0 = 06H

2.07

2.16

2.25

VLCD4-0 = 07H

2.13

2.22

2.32

VLCD4-0 = 08H

2.19

2.29

2.39

VLCD4-0 = 09H

2.26

2.36

2.46

VLCD4-0 = 0AH

2.32

2.42

2.53

VLCD4-0 = 0BH

2.39

2.49

2.59

VLCD4-0 = 0CH

2.45

2.56

2.66

VLCD4-0 = 0DH

2.51

2.62

2.73

VLCD4-0 = 0EH

2.58

2.69

2.80

VLCD4-0 = 0FH

2.64

2.76

2.87

VLCD4-0 = 10H

2.70

2.82

2.94

VLCD4-0 = 11H

2.77

2.89

3.01

VLCD4-0 = 12H

2.83

2.96

3.08

VLCD4-0 = 13H

2.90

3.02

3.15

VLCD4-0 = 14H

2.96

3.09

3.22

VLCD4-0 = 15H

3.02

3.15

3.29

VLCD4-0 = 16H

3.09

3.22

3.35

VLCD4-0 = 17H

3.15

3.29

3.42

VLCD4-0 = 18H

3.21

3.35

3.49

VLCD4-0 = 19H

3.28

3.42

3.56

VLCD4-0 = 1AH

3.34

3.49

3.63

VL4 output voltage

VL4

C1 to C4Note 1 = 0.47 µF

3/2VL2

-6%

3/2VL2

Reference voltage setup time

Note 2

tVWAIT1

Voltage boost wait timeNote 3

tVWAIT2

C1 to C4Note 1 = 0.47 µF

500

R7F100LLL3CFB Datasheet(PDF) 128 Page - Renesas Technology Corp

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