Product data

44
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
38C3 Group
Table 14 Recommended operating conditions (Vcc = 2.5 to 5.5 V, Ta = –20 to 85°C, unless otherwise noted)
Input frequency (duty cycle 50%)
Main clock input oscillation frequency (Note 4)
Sub-clock input oscillation frequency (Notes 4, 5)
f(CNTR
0)
f(CNTR1)
f(XIN)
f(XCIN)
Limits
MHz
MHz
MHz
MHz
MHz
kHz
Parameter
Min. Typ.
32.768
Max.
4.0
(2✕V
CC)–4
8.0
(4✕VCC)–8
8.0
50
Symbol Unit
(4.0 V ≤ VCC ≤ 5.5 V)
(VCC ≤ 4.0 V)
High-speed mode
(4.0 V ≤ VCC ≤ 5.5 V)
High-speed mode
(VCC ≤ 4.0 V)
Middle-speed mode
Notes 4: When the oscillation frequency has a duty cycle of 50%.
5: When using the microcomputer in low-speed mode, set the sub-clock input oscillation frequency on condition that f(X
CIN) < f(XIN)/3.