mc33911 Freescale Semiconductor, Inc, mc33911 Datasheet - Page 13

• Manufacturer Part Number: mc33911
• Description: Mc33911 Lin System Basis Chip With Dc Motor Pre-driver
• Manufacturer: Freescale Semiconductor, Inc

Table 4. Dynamic Electrical Characteristics
34911, otherwise noted. Typical values noted reflect the approximate parameter mean at T
unless otherwise noted.
Analog Integrated Circuit Device Data
Freescale Semiconductor
SPI INTERFACE TIMING (see
RST OUTPUT PIN
WINDOW WATCHDOG CONFIGURATION PIN (WDCONF)
Notes
SPI Operating Frequency
SCLK Clock Period
SCLK Clock High Time
SCLK Clock Low Time
Falling Edge of
Falling Edge of SCLK to
MOSI to Falling Edge of SCLK
Falling Edge of SCLK to MOSI
MISO Rise Time
MISO Fall Time
Time from Falling or Rising Edges of
- MISO Low-impedance
- MISO High -impedance
Time from Rising Edge of SCLK to MISO Data Valid
Reset Low-Level Duration after V
Reset Deglitch Filter Time
Watchdog Time Period
42.
43.
Characteristics noted under conditions 5.5V ≤ V
C
C
0.2 x V
External Resistor R
External Resistor R
Without External Resistor R
L
L
= 220pF
= 220pF
This parameter is guaranteed by process monitoring but not production tested.
Watchdog timing period calculation formula: t
DD
≤ MISO ≥ 0.8 x V
CS
(42)
(42)
to Rising Edge of SCLK
(42)
EXT
EXT
(42)
(43)
CS
= 20kΩ (1%)
= 200kΩ (1%)
Rising Edge
Figure
(42)
(42)
DD
Characteristic
EXT
, C
DD
(WDCONF pin open)
L
High (see
CS
13, page
= 100pF
DYNAMIC ELECTRICAL CHARACTERISTICS
(42)
to:
(42)
(42)
19
Figure
)
PWD
(42)
12, page
SUP
[ms] = 0.466 * (R
≤ 18V, -40°C ≤ T
19
)
EXT
- 20) + 10 (R
A
t
Symbol
t
≤ 125°C for the 33911 and -40°C ≤ T
W
t
t
W
f
t
t
t
t
PS
SODIS
RSTDF
SPIOP
t
t
LEAD
SOEN
VALID
t
t
t
t
SISU
t
PWD
SCLKH
RSO
FSO
SCLKL
LAG
RST
SIH
CLK
EXT
DYNAMIC ELECTRICAL CHARACTERISTICS
in kΩ)
0.65
Min
250
110
110
100
100
350
110
0.0
0.0
0.0
8.5
40
40
79
–
–
–
A
= 25°C under nominal conditions,
ELECTRICAL CHARACTERISTICS
Typ
600
150
1.0
40
40
10
94
–
–
–
–
–
–
–
–
–
–
–
Max
1.35
11.5
N/A
N/A
N/A
N/A
N/A
N/A
N/A
900
108
205
4.0
50
50
75
–
–
A
≤ 85°C for the
Unit
MHz
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
33911
13