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參數(shù)資料
| 型號(hào)： | CXD4000R |
| 英文描述： | Fingerprint Verification System LSI |
| 中文描述： | 指紋識(shí)別系統(tǒng)LSI |
| 文件頁(yè)數(shù)： | 10/14頁(yè) |
| 文件大?。?/td> | 216K |
| 代理商： | CXD4000R |
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10
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CXD4000R
SCK = Input mode
(Within the recommended operating range)
Fig. 7-2. Serial Transfer Timing (SCK: Input mode)
Item
SIOCS high level width
SIOCS
↓ →
SCK low
2
SIOCS
↓ →
SO enable
SIOCS
↑ →
SO disable
SCK high pulse width
SCK low pulse width
SCK cycle time
SI input data setup time
(activated by SCK
↑
)
SI input data hold time
(activated by SCK
↑
)
SCK
↓ →
SO delay time
Symbol
t
CSH
t
SCKL2
t
SOE
t
SOD
t
SCKH2
t
SCKL2
t
SCKC2
t
SIS2
t
SIH2
t
SOEE2
Conditions
Min.
2
t
sys + 20
4
t
sys + 20
t
sys + 20
t
sys + 20
2
t
sys + 40
20
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CS automatic
transfer mode
Max.
2
t
sys + 50
2
t
sys + 50
3
t
sys + 50
2
Even if SCK goes to low level before SIOCS falls, this is ignored.
t
SCKH2
t
SOE
t
SOD
t
CSH
t
SCKC2
t
SIH2
t
SIS2
t
SOEE2
t
SCKHW2
t
SCKLW2
t
SCKL2
SI
Input
SO
SIOCS
SCK
(input)
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