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CXP86448 View Datasheet(PDF) - Sony Semiconductor

Part Name
Description
View to exact match
CXP86448
Sony
Sony Semiconductor Sony
CXP86448 Datasheet PDF : 24 Pages
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CXP86212/86216, CXP86324/86332, CXP86440/86448/86460
AC Characteristics
(1) Clock timing
(Ta = –20 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)
Item
Symbol Pins
Conditions
Min. Typ. Max Unit
System clock frequency
fC
XTAL
EXTAL
Fig. 1, Fig.2
8
16 MHz
System clock input pulse width
tXL,
tXH
System clock input rise and fall tCR,
times
tCF
EXTAL
Fig. 1, Fig.2
External clock drive
28
EXTAL
Fig. 1, Fig.2
External clock drive
ns
200 ns
Event count input clock pulse
width
tEH,
tEL
EC
Event count input clock rise
and fall times
tER,
tEF
EC
Fig. 3
Fig. 3
4tsys1
ns
20 ms
System clock frequency
fC
TEX
TX
VDD = 2.7 to 5.5 V
Fig. 2 (32kHz clock
applied conditions)
32.768
kHz
Event count input clock input
pulse width
tTL,
tTH
TEX
Fig. 3
10
µs
Event count input clock rise
and fall times
tTR,
tTF
TEX
Fig. 3
20 ms
1 Indicates three values according to the contents of the clock control register (CLC: 00FEh) upper 2 bits
(CPU clock selection).
tsys (ns) = 2000/fc (Upper 2 bits = “00”), 4000/fc (Upper 2 bits = “01”), 16000/fc (Upper 2 bits = “11”)
Fig. 1. Clock timing
1/fc
EXTAL
VDD – 0.4V
0.4V
tXH
Fig.2. Clock applied conditions
Crystal oscillation
Ceramic oscillation
tCF
External clock
tXL
tCR
32kHz clock applied condition
Crystal oscillation
EXTAL XTAL
EXTAL XTAL
TEX
TX
C1
C2
74HC04
C1
C2
Fig. 3. Event count clock timing
TEX
EC
tEH
tEF
tEL
tTH
tTF
tTL
– 15 –
0.8VDD
0.2VDD
tER
tTR
 

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