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參數(shù)資料
| 型號(hào)： | CXP921064AGA |
| 英文描述： | Microcontroller |
| 中文描述： | 微控制器 |
| 文件頁(yè)數(shù)： | 20/34頁(yè) |
| 文件大?。?/td> | 402K |
| 代理商： | CXP921064AGA |
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–
20
–
CXP921064A
AC Characteristics
(1) Clock timing
(Topr =
–
20 to +75
°
C, V
DD
= 2.7 to 3.3V, Vss = 0V reference)
Item
Main clock base oscillation
frequency
Main clock base oscillation
input pulse width
Main clock base oscillation
input rise time, fall time
Sub clock base oscillation
frequency
Sub clock base oscillation
input pulse width
Sub clock base oscillation
input rise time, fall time
f
EX
t
XH
t
XL
t
XR
t
XF
f
TEX
t
TH
t
TL
t
TR
t
TF
EXTAL,
XTAL
EXTAL
EXTAL
TEX,
TX
TEX
TEX
Fig.1
Fig.1, Fig.2
External clock
drive
Fig.1, Fig.2
External clock
drive
Fig.1
Fig.1, Fig.2
External clock
drive
Fig.1, Fig.2
External clock
drive
V
DD
= 3.0 ± 0.3V
V
DD
= 3.0 ± 0.3V
V
DD
= 3.0 ± 0.3V
V
DD
= 2.2 to 3.3V
V
DD
= 3.3V
V
DD
= 2.2V
V
DD
= 3.3V
V
DD
= 2.2V
15
20
32.735
15.3
15.3
20.5
14
33.096
200
200
MHz
ns
ns
kHz
μs
μs
ns
ns
Symbol
Pins
Conditions
Min.
Max.
20
32.768
Typ.
Unit
Note)
t
sys indicates the four values below according to the upper two bits (PCK1,PCK0) of the clock control
register (CLC: 0002FEh) during main mode and tsys = 2/f
TEX
= 61.04μs during sub mode.
t
sys [ns] = 2/f
EX
(PCK1, PCK0 = 00), 4/f
EX
(PCK1, PCK0 = 01), 8/f
EX
(PCK1, PCK0 = 10), 16/f
EX
(PCK1,
PCK0 = 11)
EXTAL
1/fc
t
XH
t
XF
t
XL
t
XR
0.7V
DD
0.3V
DD
TEX
1/f
TEX
t
TH
t
TF
t
TL
t
TR
0.7V
DD
0.3V
DD
Fig.2. Oscillator connection and clock applied conditions
Oscillator connection
example of
sub oscillation circuit
Connection example of
external clock
TEX
TX
(TEX)
EXTAL
(TX)
XTAL
74HC04
Oscillator connection
example of
main oscillation circuit
EXTAL
XTAL
Fig.1. Clock timing
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