CXR702080 Datasheet, PDF (25/32 Pages) Sony Corporation – CMOS 32-bit Single Chip Microcomputer

CXR702080
AC Characteristics
(1) Clock timing
(Topr = –40 to +85°C, VDD = 2.7 to 3.6V, Vss = 0V reference)
Item
Symbol Pins
Main oscillation input clock
frequency
fEX
XTAL
EXTAL
Main oscillation input clock tXL,
pulse width
tXH
XTAL
EXTAL
Main oscillation input clock tCR,
rise time, fall time
tCF
XTAL
EXTAL
Sub oscillation input clock
frequency
fTEX
TEX
TX
Event count input clock
pulse width
tEH,
EC0
tEL
EC2
Event count input clock
rise time, fall time
tER,
EC0
tEF
EC2
Conditions
Min. Typ. Max. Unit
Fig. 1, Fig. 2
1
20 MHz
Fig. 1, Fig. 2
External clock drive
22.5
ns
Fig. 1, Fig. 2
External clock drive
100/fEX ns
Fig. 2
32kHz clock applied condition
32.768
kHz
Fig. 3
2/fPS4
µs
Fig. 3
1 ms
Note) fPS4 is fSRC/16 (MHz) for output fSRC of main oscillation circuit.
EXTAL
XTAL
Crystal oscillation
Ceramic oscillation
EXTAL XTAL
C1
C2
1/fEX
0.9VDD
0.4V
tXH
tCF
tXL
tCR
Fig. 1. Clock timing
External clock
32kHz clock applied condition
Crystal oscillation
EXTAL XTAL
74HC04
TEX
TX
C1
C2
Fig. 2. System clock applied condition
EC0
EC2
0.7VDD
0.2VDD
tEH
tEF
tEL
tER
Fig. 3. Event count input timing
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