R5F51406ADFN datasheet(91/121 Pages) RENESAS

91 / 121 page

R01DS0379EJ0120 Rev.1.20

Page 91 of 121

Nov 22, 2024

RX140 Group

2. Electrical Characteristics

Note 1. The A/D internal reference voltage indicates the voltage when the internal reference voltage is input to the A/D converter.

Figure 2.54

Equivalent Circuit

Table 2.64

A/D Converter Channel Classification

Classification

Channel

Conditions

Remarks

High-precision channel

AN000 to AN007

AVCC0 = 1.8 to 5.5 V

Pins AN000 to AN007 cannot be used as digital

outputs when the A/D converter is in use.

Normal-precision channel

AN016 to AN021,

AN024 to AN026

Internal reference voltage input

channel

Internal reference

voltage

AVCC0 = 1.8 to 5.5 V

Temperature sensor input channel Temperature sensor

output

AVCC0 = 1.8 to 5.5 V

CTSU input channels

AN008

AVCC0 = 1.8 to 5.5V

Table 2.65

A/D Internal Reference Voltage Characteristics

Conditions: 1.8 V ≤ VCC ≤ 5.5 V, 1.8 V ≤ VREFH0 = AVCC0 ≤ 5.5 V, VSS = AVSS0 = VREFL0 = 0 V, Ta = –40 to +105°C

Item

Min.

Typ.

Max.

Unit

Test Conditions

Internal reference voltage input channel*1

1.42

1.48

1.54

12b - ADC

MCU

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