参数资料
型号: L99PD08
厂商: STMICROELECTRONICS
元件分类: 电源管理
英文描述: POWER SUPPLY MANAGEMENT CKT, PQFP32
封装: ROHS COMPLIANT, LQFP-32
文件页数: 16/41页
文件大小: 750K
代理商: L99PD08
L99PD08
SPI
Doc ID 15872 Rev 3
23/41
6.1
SPI timing parameter definition
Figure 8.
SPI timing diagram
6.2
Functional description of the SPI
This device uses a 16 bit SPI slave protocol structured according to the ST SPI Standard to
communicate with a microcontroller.
tHCSN
Minimum CSN high time
5
s
tSSCK
SCK setup time before NCS
rising
50
ns
Table 17.
Dynamic characteristics (continued)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
CSN
SDO
Data out
tCSNQT
tSCKQV
SCK
Data out
tHSCK
tLSCK
tSCSN
tHCSN
Data in
tSSDI
SDI
tCSNQV
tSSCK
Table 18.
CSN timeout/CLK_INx timings
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
tCSN_TIMEOUT
CSN timeout 50ms
50
72
ms
CSN timeout 100ms
100
145
ms
CSN timeout 200ms
200
285
ms
CSN timeout 400ms
400
570
ms
fFAIL
CLK_INx fail detected
4.8
5.0
6.2
kHz
fOK_
CLK_INx ok detected
5.2
7.0
9.2
kHz
fCLK_INx
CLK_INx frequency range
102.4
kHz
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