ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics
Characteristics noted under conditions 7.0 V ≤ VSUP ≤ 18 V, -40°C ≤ TA ≤ 125°C, GND = 0 V unless otherwise noted. Typical
values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
DIGITAL INTERFACE TIMING (SCLK, CS, MOSI, MISO)
SPI Operation Frequency
F
0.25
250
125
125
100
100
40
—
—
—
—
—
—
—
—
25
25
4.0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
50
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
REQ
SCLK Clock Period
t
PCLK
SCLK Clock High Time
t
t
WSCLKH
WSCLKH
SCLK Clock Low Time
Falling Edge of CS to Rising Edge of SCLK
Falling Edge of SCLK to Rising Edge of CS
MOSI to Falling Edge of SCLK
Falling Edge of SCLK to MOSI
t
LEAD
t
LAG
t
SISU
t
40
SIH
MISO Rise Time (C = 220 pF)
L
t
—
RSO
MISO Fall Time (C = 220 pF)
L
t
—
50
FSO
Time from Falling or Rising Edges of CS to:
MISO Low Impedance
t
SOEN
t
—
—
—
—
50
50
SODIS
MISO High Impedance
Time from Rising Edge of SCLK to MISO Data Valid
t
ns
VALID
0.2 V1 = <MISO> = 0.8 V1, C = 200 pF
L
—
—
50
STATE MACHINE TIMING (CS, SCLK, MOSI, MISO, WD, INT)
Delay Between CS Low to High Transition (End of SPI Stop Command) and
Stop Mode Activation Detected by V2 OFF (24)
tCSSTOP
µs
µs
18
7.0
—
—
10
34
13
—
Interrupt Low Level Duration
SBC in Stop Mode
tINT
Internal Oscillator Frequency
O
kHz
SCF1
SCF2
All Modes Except Sleep and Stop (24)
Internal Low Power Oscillator Frequency
Sleep and Stop Modes (24)
100
O
kHz
—
100
—
Watchdog Period 1
WD
WD
WD
WD
ms
ms
ms
ms
%
1
2
3
4
Normal and Standby Modes
8.58
39.6
88
9.75
45
10.92
50.4
112
392
12
Watchdog Period 2
Normal and Standby Modes
Watchdog Period 3
Normal and Standby Modes
100
350
—
Watchdog Period 4
Normal and Standby Modes
308
-12
Watchdog Period Accuracy
Normal and Standby Modes
f
1ACC
Notes
24. Guaranteed by design; however it is not production tested.
33989
Analog Integrated Circuit Device Data
Freescale Semiconductor
12
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