Electrical characteristics
Symbol
powerSTEP01
Table 4. Electrical characteristics (continued)
Parameter Test conditions Min. Typ. Max. Unit
tlow,STCK Step-clock input low time
300
ns
Internal oscillator and external oscillator driver
fosc,int
fosc,ext
VOSCOUTH
Internal oscillator frequency
Tj = 25 °C,
-5%
8
16
+5% MHz
Programmable external
oscillator frequency
32
MHz
V
OSCOUT clock source high
level voltage
Internal oscillator
Internal oscillator
Internal oscillator
Internal oscillator
2.4
OSCOUT clock source low
level voltage
VOSCOUTL
0.3
10
V
trOSCOUT
tfOSCOUT
OSCOUT clock source rise and
fall time
ns
ns
ms
μs
OSCOUT clock source high
time
thigh
62.5
3
Internal to external oscillator
switching delay
textosc
External to internal oscillator
switching delay
tintosc
SPI
100
Maximum SPI clock
frequency(4)
fCK,MAX
5
MHz
μs
trCK
tfCK
thCK
tlCK
SPI clock rise and fall time(4)
SPI clock high and low time(4)
1
90
ns
tsetCS
tholCS
tdisCS
Chip select setup time(4)
Chip select hold time (4)
Deselect time(4)
30
30
ns
ns
ns
ns
ns
ns
ns
ns
ns
625
20
tsetSDI
tholSDI
tenSDO
tdisSDO
tvSDO
Data input setup time(4)
Data input hold time(4)
Data output enable time(4)
Data output disable time (4)
Data output valid time(4)
30
95
95
35
tholSDO Data output hold time(4)
0
PWM modulators
14/90
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STMICROELECTRONICS [ ST ]
