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Section 37 Electrical Characteristics
Page 1974 of 2108 R01UH0134EJ0400 Rev. 4.00
Sep 24, 2014
SH7262 Group, SH7264 Group
37.4 AC Characteristics
Signals input to this LSI are basically handled as signals in synchronization with a clock. The
setup and hold times for input pins must be followed.
Conditions for AC characteristics
V
CC = PLLVCC = USBDVCC = USBUVCC = 1.1 to 1.3 V,
PV
CC = USBDPVCC = 3.0 to 3.6 V, AVCC = 3.0 to 3.6 V, USBAVCC = 1.1 to 1.3 V, USBAPVCC =
3.0 to 3.6 V, V
SS = PLLVSS = AVSS = USBDVSS = USBAVSS =
USBDPV
SS = USBAPVSS = USBUVSS = 0 V, Ta = 20 to 85 C (regular specifications), 40 to
85 C (wide-range specifications)
Table 37.4 Operating Frequency
Item Symbol Min. Max. Unit Remarks
Operating
frequency
CPU clock (I) f 40.00 144.00 MHz
Bus clock (B) 40.00 72.00 MHz
Peripheral clock (P) 6.67 36.00 MHz
37.4.1 Clock Timing
Table 37.5 Clock Timing
Item Symbol Min. Max. Unit Figure
EXTAL clock input frequency fEX 10.00 18.00 MHz Figure
37.1
EXTAL clock input cycle time tEXcyc 55.55 100.00 ns
AUDIO_X1 clock input frequency (crystal resonator
connected)
fEX 10.00 25.00 MHz
AUDIO_X1 clock input cycle time (crystal resonator
connected)
tEXcyc 40.00 100.00 ns
AUDIO_X1, AUDIO_CLK clock input frequency
(external clock input)
fEX 1.00 25.00 MHz
AUDIO_X1, AUDIO_CLK clock input cycle time
(external clock input)
tEXcyc 40.00 1000.00 ns
USB_X1 clock input frequency (when high-speed
transfer function is used)
fEX 48 MHz 100 ppm
USB_X1 clock input frequency (when high-speed
transfer function is not used and host controller
function is used)
48 MHz 500 ppm