Datasheet

R01DS0060EJ0160 Rev.1.60 Page 108 of 154
May 19, 2014
RX630 Group 5. Electrical Characteristics
5.3 AC Characteristics
Note 1. The PCLKB must run at a frequency of at least 24 MHz if the USB is in use.
Note 2. The FCLK must run at a frequency of at least 4 MHz when changing the ROM or E2 DataFlash memory contents.
Table 5.7 Operation Frequency Value (High-Speed Operating Mode)
Conditions: VCC = AVCC0 = VREFH = VCC_USB = V
BATT
= 2.7 to 3.6 V, VREFH0 = 2.7 V to AVCC0,
VSS = AVSS0 = VREFL/VREFL0 = VSS_USB = 0 V, T
a
= T
opr
Item Symbol Min. Typ. Max. Unit
Operation
frequency
System clock (ICLK) f — — 100 MHz
Peripheral module clock (PCLKB) —*
1
—50
FlashIF clock (FCLK) —*
2
—50
External bus clock (BCLK) — — 50
BCLK pin output — — 25
USB clock (UCLK) — — 48
IEBUS clock (IECLK) — — 44.03
Table 5.8 Operation Frequency Value (Low-Speed Operating Mode 1)
Conditions: VCC = AVCC0 = VREFH = VCC_USB = V
BATT
= 2.7 to 3.6 V, VREFH0 = 2.7 V to AVCC0,
VSS = AVSS0 = VREFL/VREFL0 = VSS_USB = 0 V, T
a
= T
opr
Item Symbol Min. Typ. Max. Unit
Operation
frequency
System clock (ICLK) f — — 1 MHz
Peripheral module clock (PCLKB) — — 1
FlashIF clock (FCLK) — — 1
External bus clock (BCLK) — — 1
BCLK pin output — — 1
USB clock (UCLK) — — 1
IEBUS clock (IECLK) — — 1
Table 5.9 Operation Frequency Value (Low-Speed Operating Mode 2)
Conditions: VCC = AVCC0 = VREFH = VCC_USB = V
BATT
= 2.7 to 3.6 V, VREFH0 = 2.7 V to AVCC0,
VSS = AVSS0 = VREFL/VREFL0 = VSS_USB = 0 V, T
a
= T
opr
Item Symbol Min. Typ. Max. Unit
Operation
frequency
System clock (ICLK) f 32 — 143.75 kHz
Peripheral module clock (PCLKB) — — 143.75
FlashIF clock (FCLK) 32 — 143.75
External bus clock (BCLK) — — 143.75
BCLK pin output — — 143.75
USB clock (UCLK) — — 143.75
IEBUS clock (IECLK) — — 143.75