RA4W1 datasheet(45/105 Pages) RENESAS

45 / 105 page

R01DS0359EJ0100 Rev.1.00

Page 45 of 105

Mar 31, 2020

RA4W1 Datasheet

2. Electrical Characteristics

Note 1.

Programming and erasing the flash memory is not possible.

Note 2.

The 14-bit A/D converter cannot be used.

Note 3.

See section 9, Clock Generation Circuit in User’s Manual for the relationship of frequencies between ICLK, PCLKA, PCLKB,

PCLKC, PCLKD, FCLK, and BCLK.

2.3.2

Clock Timing

Table 2.22

Operation frequency value in Subosc-speed mode

Conditions: VCC = AVCC0 = 1.8 to 3.6 V

Parameter

Symbol

Min

Typ

Max

Unit

Operation

frequency

System clock (ICLK)*3

1.8 to 3.6 V

27.8528

32.768

37.6832

kHz

FlashIF clock (FCLK)*1, *3

1.8 to 3.6 V

27.8528

32.768

37.6832

Peripheral module clock (PCLKA)*3

1.8 to 3.6 V

37.6832

Peripheral module clock (PCLKB)*3

1.8 to 3.6 V

37.6832

Peripheral module clock (PCLKC)*2, *3

1.8 to 3.6 V

37.6832

Peripheral module clock (PCLKD)*3

1.8 to 3.6 V

37.6832

Table 2.23

Clock timing (1 of 2)

Parameter

Symbol

Min

Typ

Max

Unit

Test conditions

EXTAL external clock input cycle time

tXcyc

Figure 2.23

EXTAL external clock input high pulse width

tXH

EXTAL external clock input low pulse width

tXL

EXTAL external clock rising time

tXr

EXTAL external clock falling time

tXf

EXTAL external clock input wait time*1

tEXWT

0.3

μs-

EXTAL external clock input frequency

fEXTAL

MHz

2.4 ≤ VCC ≤ 3.6

1.8 ≤ VCC < 2.4

Main clock oscillator oscillation frequency

fMAIN

MHz

2.4 ≤ VCC ≤ 3.6

1.8 ≤ VCC < 2.4

Main clock oscillation stabilization wait time (crystal)*9

tMAINOSCWT

-*9

LOCO clock oscillation frequency

fLOCO

27.8528

32.768

37.6832

kHz

LOCO clock oscillation stabilization time

tLOCO

100

μs

Figure 2.24

IWDT-dedicated clock oscillation frequency

fILOCO

12.75

17.25

kHz

Bluetooth-dedicated clock oscillation frequency

fBLECK

-32

MHz

Bluetooth-dedicated low-speed on-chip oscillator oscillation

frequency

fBLELOCO

32.768

kHz

MOCO clock oscillation frequency

fMOCO

6.88

9.2MHz

MOCO clock oscillation stabilization time

tMOCO

μs-

HOCO clock oscillation frequency

fHOCO24

23.64

24.36

MHz

Ta = –40 to –20°C

1.8 ≤ VCC ≤ 3.6

23.76

24.24

Ta = –20 to 85°C

1.8 ≤ VCC ≤ 3.6

fHOCO32

31.52

32.48

Ta = –40 to -20°C

1.8 ≤ VCC ≤ 3.6

31.68

32.32

Ta = –20 to 85°C

1.8 ≤ VCC ≤ 3.6

fHOCO48*4

47.28

48.72

Ta = –40 to –20°C

1.8 ≤ VCC ≤ 3.6

47.52

48.48

Ta = –20 to 85°C

1.8 ≤ VCC ≤ 3.6

fHOCO64*5

63.04

64.96

Ta = –40 to –20°C

2.4 ≤ VCC ≤ 3.6

63.36

64.64

Ta = –20 to 85°C

2.4 ≤ VCC ≤ 3.6

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