Datasheet

M32C/87 Group (M32C/87, M32C/87A, M32C/87B) 5. Electrical Characteristics
REJ03B0127-0151 Rev.1.51 Jul 31, 2008
Page 50 of 85
Table 5.4 Recommended Operating Conditions (3/3)
(VCC1 = VCC2 = 3.0 to 5.5 V, Topr = -20 to 85°C unless otherwise specified)
Symbol Parameter
Standard
Unit
Min. Typ. Max.
f(CPU) CPU clock frequency
(same frequency as f(BCLK))
VCC1 = 4.2 to 5.5V 0 32 MHz
VCC1 = 3.0 to 5.5V 0 24 MHz
f(XIN) Main clock input oscillation frequency VCC1 = 4.2 to 5.5V 0 32 MHz
VCC1 = 3.0 to 5.5V 0 24 MHz
f(XCIN) Sub clock frequency 32.768 50 kHz
f(Ring) On-chip oscillator frequency 1 MHz
f(VCO) VCO clock frequency (PLL frequency synthesizer) 20 80 MHz
f(PLL) PLL clock frequency VCC1 = 4.2 to 5.5V 10 32 MHz
VCC1 = 3.0 to 5.5V 10 24 MHz
tsu(PLL) Wait time to stabilize PLL frequency
synthesizer
VCC1 = 5.0V 5 ms
VCC1 = 3.3V 10 ms