參數(shù)資料
型號: CXP88852Q
廠商: Sony Corporation
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 18/32頁
文件大?。?/td> 530K
代理商: CXP88852Q
– 18 –
CXP88852/88860
TEX
EC
t
EH
t
EL
t
EF
t
ER
0.2V
DD
0.8V
DD
t
TH
t
TL
t
TF
t
TR
Fig. 3. Event count clock timing
1
t
sys indicates three values according to the contents of the clock control register (CLC; 00FE
H
) upper 2 bits
(CPU clock selection).
t
sys [ns] = 2000/fc (Upper 2 bits = "00"), 4000/fc (Upper 2 bits = "01"), 16000/fc (Upper 2 bits = "11")
EXTAL
XTAL
t
XH
t
XL
t
CF
t
CR
0.4V
V
DD –
0.4V
1/fc
AAAA
74HC04
AAAA
EXTAL
AAAA
External clock
XTAL
AAAA
AAAA
EXTAL
AAAA
Ceramic oscillation
XTAL
AAAA
AAAA
TEX
AAAA
Crystal oscillation
TX
AC Characteristics
(1) Clock timing
System clock frequency
System clock input pulse width
System clock input rise and
fall times
Event count clock input
pulse width
Event count clock input
rise and fall times
System clock frequency
Event count clock input
pulse width
Event count clock input
rise and fall times
f
C
t
XL
,
t
XH
t
CR
,
t
CF
t
EH
,
t
EL
t
ER
,
t
EF
f
C
t
TL
,
t
TH
t
TR
,
t
TF
XTAL
EXTAL
XTAL
EXTAL
XTAL
EXTAL
EC
EC
TEX
TX
TEX
TEX
MHz
ns
ns
ns
ms
kHz
μs
ms
Item
Symbol
Pin
Condition
Unit
Fig. 1, Fig. 2
Fig. 1, Fig. 2
External clock drive
Fig. 1, Fig. 2
External clock drive
Fig. 3
Fig. 3
V
DD
= 2.7 to 5.5V
Fig. 2 (32kHz clock
applied condition)
Fig. 3
Fig. 3
Typ.
32.768
Min.
1
28
t
sys
+
200
1
10
Max.
16
200
20
20
(Ta = –20 to +75°C, V
DD
= 4.5 to 5.5V, Vss = 0V reference)
Fig. 1. Clock timing
Fig. 2. Clock applied condition
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