RX113 datasheet(76/131 Pages) RENESAS

76 / 131 page

R01DS0216EJ0120 Rev.1.20

Page 76 of 131

Sep 07, 2020

RX113 Group

5. Electrical Characteristics

5.3

AC Characteristics

5.3.1

Clock Timing

Note 1. The lower-limit frequency of FCLK is 1 MHz during programming or erasing of the flash memory. When using FCLK at below

4 MHz, the frequency can be set to 1 MHz, 2 MHz, or 3 MHz. A non-integer frequency such as 1.5 MHz cannot be set.

Note 2. The frequency accuracy of FCLK should be ±3.5%. Confirm the frequency accuracy of the clock source.

Note 3. The lower-limit frequency of PCLKD is 4 MHz at 2.4 V or above and 1 MHz at below 2.4 V when the A/D converter is in use.

Note 4. The VCC_USB range is 3.0 to 3.6 V when the USB clock is in use.

Note 1. The lower-limit frequency of FCLK is 1 MHz during programming or erasing of the flash memory. When using FCLK at below

4 MHz, the frequency can be set to 1 MHz, 2 MHz, or 3 MHz. A non-integer frequency such as 1.5 MHz cannot be set.

Note 2. The frequency accuracy of FCLK should be ±3.5%.

Note 3. The lower-limit frequency of PCLKD is 4 MHz at 2.4 V or above and 1 MHz at below 2.4 V when the A/D converter is in use.

Note 4. The VCC_USB range is 3.0 to 3.6 V when the USB clock is in use.

Note 1. Programming and erasing the flash memory is impossible.

Note 2. The A/D converter cannot be used.

Table 5.19

Operation Frequency Value (High-Speed Operating Mode)

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

VCC

Unit

1.8 to 2.4 V

2.4 to 2.7 V

2.7 to 3.6 V

When USB

in Use*4

Maximum

operating

frequency

System clock (ICLK)

fmax

816

MHz

FlashIF clock (FCLK)*1, *2

816

Peripheral module clock (PCLKB)

Peripheral module clock (PCLKD)*3

816

USB clock (UCLK)

fusb

———

Table 5.20

Operation Frequency Value (Middle-Speed Operating Mode)

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

VCC

Unit

1.8 to 2.4 V

2.4 to 2.7 V

2.7 to 3.6 V

When USB

in Use*4

Maximum

operating

frequency

System clock (ICLK)

fmax

812

MHz

FlashIF clock (FCLK)*1, *2

812

Peripheral module clock (PCLKB)

Peripheral module clock (PCLKD)*3

812

USB clock (UCLK)

fusb

———

Table 5.21

Operation Frequency Value (Low-Speed Operating Mode)

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

VCC

Unit

1.8 to 2.4 V

2.4 to 2.7 V

2.7 to 3.6 V

Maximum

operating

frequency

System clock (ICLK)

fmax

32.768

kHz

FlashIF clock (FCLK)*1

32.768

Peripheral module clock (PCLKB)

32.768

Peripheral module clock (PCLKD)*2

32.768

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