RX23T Datasheet, PDF (57/98 Pages) Renesas Technology Corp – 40-MHz 32-bit RX MCUs, built-in FPU, 65.6 DMIPS

RX23T Group
5. Electrical Characteristics
5.3 AC Characteristics
5.3.1
Clock Timing
Table 5.14 Operating Frequency Value (High-Speed Operating Mode)
Conditions: VCC = 2.7 V to 5.5 V, AVCC0 = VREFH0 = VCC to 5.5 V, VSS = AVSS0 = VREFL0 = 0 V, T_a = –40 to +105°C
Item
Symbol
min.
typ.
max.
Unit
Maximum operating System clock (ICLK)
frequency
FlashIF clock (FCLK)*^1, *²
f_max
—
—
40
MHz
—
—
32
Peripheral module clock (PCLKA)
—
—
40
Peripheral module clock (PCLKB)
—
—
40
Peripheral module clock (PCLKD)
—
—
40
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%.
Table 5.15 Operating Frequency Value (Middle-Speed Operating Mode)
Conditions: VCC = 2.7 V to 5.5 V, AVCC0 = VREFH0 = VCC to 5.5 V, VSS = AVSS0 = VREFL0 = 0 V, T_a = –40 to +105°C
Item
Symbol
min.
typ.
max.
Unit
Maximum operating System clock (ICLK)
frequency
FlashIF clock (FCLK)*^1, *²
f_max
—
—
12
MHz
—
—
12
Peripheral module clock (PCLKA)
—
—
12
Peripheral module clock (PCLKB)
—
—
12
Peripheral module clock (PCLKD)
—
—
12
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%.
R01DS0248EJ0110 Rev.1.10
Jan 13, 2016
Page 57 of 98