參數(shù)資料
型號(hào): CXP852P32AQ
廠(chǎng)商: Sony Corporation
元件分類(lèi): 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(yè)數(shù): 13/21頁(yè)
文件大?。?/td> 256K
代理商: CXP852P32AQ
– 13 –
CXP852P32A
AC Characteristics
(1) Clock timing
1
t
sys indicates the three values below according to the upper two bits (CPU clock selection) of the clock
control register (address: 00FE
H
).
t
sys [ns] = 2000/fc (upper two bits = "00"), 4000/fc (upper two bits = "01"), 16000/fc (upper two bits = "11")
System clock frequency
System clock input
pulse width
System clock input rise
time, fall time
Event counter input clock
pulse width
Event counter input clock
rise time, fall time
f
C
t
XL
,
t
XH
t
CR
,
t
CF
t
EH
,
t
EL
t
ER
,
t
EF
XTAL
EXTAL
EXTAL
EXTAL
EC
EC
MHz
ns
ns
ns
ms
Item
Symbol
Pins
Conditions
Min.
Max.
Unit
Fig. 1, Fig. 2
Fig. 1, Fig. 2
External clock drive
Fig. 1, Fig. 2
External clock drive
Fig. 3
Fig. 3
4.5
200
20
3.5
100
t
sys + 50
1
(Ta = –10 to +75°C, V
DD
= 4.5 to 5.5V, Vss = 0V reference)
Fig. 1. Clock timing
EXTAL
t
XH
t
XL
t
CF
t
CR
0.4V
V
DD
– 0.4V
1/fc
Fig. 2. Clock applied condition
AAAAA
C
1
AAAAA
AAAAA
AAAAA
AAAAA
AAAAA
Crystal oscillation
Ceramic oscillation
External clock
OPEN
C
2
Fig. 3. Event count clock timing
EC
t
EH
t
EL
t
EF
t
ER
0.2V
DD
0.8V
DD
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