4507_M Datasheet, PDF (171/216 Pages) Renesas Technology Corp – 4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES

4507 Group
APPENDIX
3.1 Electrical characteristics
Table 3.1.3 Recommended operating conditions 2
(Ta = –20 °C to 85 °C, VDD = 2.0 to 5.5 V, unless otherwise noted)
Symbol
Parameter
Conditions
f(XIN)
Oscillation frequency
(with a ceramic resonator)
f(XIN)
Oscillation frequency
(with RC oscillation) (Note)
f(XIN)
Oscillation frequency
(with a ceramic resonator selected,
external clock input)
∆ f(XIN)
f(CNTR)
Oscillation frequency error
(at RC oscillation, error value of
exteranal R, C not included)
Note: use 30 pF capacitor and vary external R
Timer external input frequency
tw(CNTR) Timer external input period
(“H” and “L” pulse width)
High-speed mode
VDD = 2.7 V to 5.5 V
VDD = 2.0 V to 5.5 V
Middle-speed mode
VDD = 2.0 V to 5.5 V
Low-speed mode
Default mode
High-speed mode
VDD = 2.7 V to 5.5 V
Middle-speed mode
Low-speed mode
Default mode
High-speed mode
VDD = 2.7 V to 5.5 V
VDD = 2.0 V to 5.5 V
Middle-speed mode
VDD = 2.0 V to 5.5 V
Low-speed mode
Default mode
VDD = 5.0 V ±10 %, Ta = 25 °C, –20 to 85 °C
VDD = 3.0 V ±10 %, Ta = 25 °C, –20 to 85 °C
High-speed mode
Middle-speed mode
Low-speed mode
Default mode
High-speed mode
Middle-speed mode
Low-speed mode
Default mode
Limits
Unit
Min. Typ. Max.
4.4 MHz
2.2
4.4
4.4 MHz
3/f(XIN)
6/f(XIN)
12/f(XIN)
24/f(XIN)
3.2 MHz
1.6
3.2
±17 %
±17
f(XIN)/6 Hz
f(XIN)/12
f(XIN)/24
f(XIN)/48
s
Note: The frequency at RC oscillation is affected by a capacitor, a resistor and a microcomputer. So, set the constants within the range of the frequency limits.
Rev.2.01 Feb 04, 2005
3-5
REJ09B0195-0201