參數(shù)資料
型號： E-L9935013TR
廠商： STMICROELECTRONICS
元件分類： 運(yùn)動控制電子
英文描述： STEPPER MOTOR CONTROLLER, 2.5 A, PDSO20
封裝： ROHS COMPLIANT, POWER, MO-166, SOP-20
文件頁數(shù)： 13/29頁
文件大小： 311K
代理商： E-L9935013TR
Functional description
L9935
Falling slope of CSN indicates start of frame. Data transfer (reading SDI into the register)
takes place at the rising slopes of SCK.
Data transfer of the register to SDO takes place at the falling slope of SCK.
Rising slope of CSN indicates end of frame. At the end of frame data will only be accepted if
modulo 8 bit (modulo 8 falling slopes to SCK) have been transferred. If this is not the case
the input will be ignored and the bridges will maintain the same status as before.
SDO is a tristate output.
SDO is active while CSN = LOW, while CSN = HIGH SDO is high resistive.
Figure 9.
SPI data/clock timing
MSB7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
SCK
EN
CSN
SCK
SDI
SDO
t1
tzch
t1
tcl
tsu tsh
td
SDI
tPd
CURRENT B
POLARITY B
POLARITY A
D99AT437
ten_sck
MSB7
bit6
bit7
bit5
bit4
bit3
bit2
bit1
bit0
SDO
AX
CURRENT A
ERROR BITS
tch
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