RX113 datasheet(112/131 Pages) RENESAS

112 / 131 page

R01DS0216EJ0120 Rev.1.20

Page 112 of 131

Sep 07, 2020

RX113 Group

5. Electrical Characteristics

5.9.2

Internal Voltage Boosting Method

(1)

1/3 Bias Method

Note 1. This is the required wait time from when the reference voltage is specified by the VLCD register (or when the internal voltage

boosting method is selected (LCDM0.MDSET1 and MDSET0 = 01b) if the default reference voltage value is used) until voltage

boosting starts (VLCON = 1).

Note 2. This is the wait time from when voltage boosting is started (VLCON = 1) until display is enabled (LCDON = 1).

Table 5.51

Internal Voltage Boosting Method

Conditions: 1.8 V

≤ VCC = VCC_USB ≤ 3.6 V, 1.8 V ≤ AVCC0 ≤ 3.6 V, VSS = AVSS0 = VSS_USB = 0 V, T

a = –40 to +105°C

Item

Value

Test Conditions

External capacitance connected between CAPH and CAPL pins

0.47 µF ±30%

External capacitance connected to VL1 to VL4 pins

0.47 µF ±30%

Table 5.52

Internal Voltage Boosting Method LCD Characteristics

Conditions: 1.8 V

≤ VCC = VCC_USB ≤ 3.6 V, 1.8 V ≤ AVCC0 ≤ 3.6 V, VSS = AVSS0 = VSS_USB = 0 V, T

a = –40 to +105°C

Item

Symbol

Min.

Typ.

Max.

Unit

Test Conditions

LCD output voltage variation range

VL1

0.9

1.0

1.08

VLCD = 04h

0.95

1.05

1.13

VLCD = 05h

1.1

1.18

VLCD = 06h

1.05

1.15

1.23

VLCD = 07h

1.1

1.2

1.28

VLCD = 08h

1.15

1.25

1.33

VLCD = 09h

1.2

1.3

1.38

VLCD = 0Ah

1.25

1.35

1.43

VLCD = 0Bh

1.3

1.4

1.48

VLCD = 0Ch

1.35

1.45

1.53

VLCD = 0Dh

1.4

1.5

1.58

VLCD = 0Eh

1.45

1.55

1.63

VLCD = 0Fh

1.5

1.6

1.68

VLCD = 10h

1.55

1.65

1.73

VLCD = 11h

1.6

1.70

1.78

VLCD = 12h

1.65

1.75

1.83

VLCD = 13h

Doubler output voltage

VL2

2VL1 – 0.10

2VL1

Tripler output voltage

VL4

3VL1 – 0.15

3VL1

Reference voltage setup time*1

tVL1S

5—

—

LCD output voltage variation range*2

tVLWT

500

—

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