
Rev.2.10 Apr 14, 2006 page 330 of 378
REJ09B0124-0210
M16C/6N Group (M16C/6NK, M16C/6NM) 22. Electric Characteristics (T/V-ver.)
Table 22.48 Recommended Operating Conditions (2)
(1)
Main clock input oscillation No wait
Flash memory
VCC = 4.2 to 5.5 V
frequency
(2) (3) (4)
version
Sub clock oscillation frequency
On-chip oscillation frequency
PLL clock oscillation frequency
CPU operation clock
VCC = 4.2 to 5.5 V
PLL frequency synthesizer stabilization wait time
Power supply ripple allowable frequency (VCC)
Power supply ripple allowable amplitude voltage VCC = 5 V
Power supply ripple rising/falling gradient VCC = 5 V
32.768
1
MHz
kHz
MHz
MHz
MHz
ms
kHz
V
V/ms
0
16
0
16
50
20
20
20
10
0.5
0.3
f(XIN)
f(XCIN)
f(Ring)
f(PLL)
f(BCLK)
t
su(PLL)
f(ripple)
VP-P(ripple)
VCC(|∆V/∆T|)
ParameterSymbol
Typ.Min.
Standard
Unit
Max.
NOTES:
1. Referenced to VCC = 4.2 to 5.5 V at Topr = –40 to 85°C unless
otherwise specified.
2. Relationship between main clock oscillation frequency and supply
voltage is shown right.
3. Execute program/erase of flash memory by VCC = 5.0 ± 0.5 V.
4. When using over 16 MHz, use PLL clock. PLL clock oscillation
frequency which can be used is 16 MHz or 20 MHz.
0.0
16.0
5.54.2
VCC [V] (main clock: no division)
Main clock input oscillation frequency
(Flash memory version: no wait)
f(XIN) operating maximum frequency [MHz]
f(ripple)
Power supply ripple allowable
frequency (VCC)
V
P-P(ripple)
Power supply ripple allowable
amplitude voltage
Figure 22.21 Voltage Fluctuation Timing
f
(ripple)
V
P-P(ripple)
VCC
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