參數(shù)資料
型號(hào): 90E32ERGI
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 模擬信號(hào)調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP48
封裝: TQFP-48
文件頁數(shù): 59/67頁
文件大?。?/td> 777K
代理商: 90E32ERGI
90E32
POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Electrical Specification
62
August 24, 2011
7.3
INTERFACE TIMING
7.3.1
SPI INTERFACE TIMING (SLAVE MODE)
The SPI interface timing is as shown in Figure-17 and Table-16.
Figure-17 SPI Timing Diagram
Table-16 SPI Timing Specification
Symbol
Description
Min.
Typical
Max.
Unit
tCSH
Minimum CS High Level Time
2T
note 1+10
ns
tCSS
CS Setup Time
2T+10
ns
tCSD
CS Hold Time
3T+10
ns
tCLD
Clock Disable Time
1T
ns
tCYC
SCLK cycle
7T+10
ns
tCLH
Clock High Level Time
5T+10
ns
tCLL
Clock Low Level Time
2T+10
ns
tDIS
Data Setup Time
2T+10
ns
tDIH
Data Hold Time
1T+10
ns
tDW
Minimum Data Width
3T+10
ns
tPD
Output Delay
2T+20
ns
tDF
Output Disable Time
2T+20
ns
Note:
1. T means system clock cycle. T=1/
fsys_clk
CS
SCLK
SDI
SDO
tCSH
tCSS
High Impedance
tCSD
tCLH
tCLL
tDIS tDIH
tPD
tDF
Valid Input
Valid Output
tCLD
tDW
tCYC
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