MC33910 Freescale Semiconductor, MC33910 Datasheet - Page 13

• Manufacturer Part Number: MC33910
• Description: LIN System Basis Chip
• Manufacturer: Freescale Semiconductor

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Table 4. Dynamic Electrical Characteristics
34910, unless otherwise noted. Typical values noted reflect the approximate parameter mean at T
conditions, unless otherwise noted.
Analog Integrated Circuit Device Data
Freescale Semiconductor
SPI INTERFACE TIMING
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
38.
39.
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
(38)
(38)
to Rising Edge of SCLK
(38)
EXT
EXT
(39)
(38)
CS
(Figure 13
= 20kΩ (1%)
= 200kΩ (1%)
Rising Edge
Characteristic
(38)
(38)
DD
EXT
DD
, C
(WDCONF Pin Open)
)
High (See
L
CS
= 100pF
DYNAMIC ELECTRICAL CHARACTERISTICS
(38)
to:
(38)
(38)
Figure
PWD
(38)
12, page
SUP
[ms] = 0.466 * (R
≤ 18V, -40°C ≤ T
19
)
EXT
- 20) + 10 (R
A
t
Symbol
t
≤ 125°C for the 33910 and -40°C ≤ T
W
W
t
f
t
t
t
t
t
PS
RSTDF
t
SODIS
t
SPIOP
SOEN
VALID
LEAD
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
–
–
–
ELECTRICAL CHARACTERISTICS
Typ
A
600
150
1.0
40
40
10
94
–
–
–
–
–
–
–
–
–
–
–
= 25°C under nominal
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
MHz
Unit
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
33910
13