Datasheet

Analog Integrated Circuit Device Data
24 Freescale Semiconductor
10XSC425
SPI INTERFACE CHARACTERISTICS
(38)
f
SPI
Maximum Frequency of SPI Operation
– – 8.0 MHz
t
WRSTB
Required Low State Duration for RSTB
10 – – s
(39)
t
CSB
Rising Edge of CSB to Falling Edge of CSB (Required Setup Time)
– – 1.0 s
(40)
t
ENBL
Rising Edge of RSTB to Falling Edge of CSB (Required Setup Time)
– – 5.0 s
(40)
t
LEAD
Falling Edge of CSB to Rising Edge of SCLK (Required Setup Time)
– – 500 ns
(40)
t
WSCLKh
Required High State Duration of SCLK (Required Setup Time)
– – 50 ns
(40)
t
WSCLKl
Required Low State Duration of SCLK (Required Setup Time)
– – 50 ns
(40)
t
LAG
Falling Edge of SCLK to Rising Edge of CSB (Required Setup Time)
– – 60 ns
(40)
t
SI (SU)
SI to Falling Edge of SCLK (Required Setup Time)
– – 37 ns
(41)
t
SI (HOLD)
Falling Edge of SCLK to SI (Required Setup Time)
– – 49 ns
(41)
t
RSO
SO Rise Time
•C
L
= 80 pF
– – 13
ns
t
FSO
SO Fall Time
•C
L
= 80 pF
– – 13
ns
t
RSI
SI, CSB, SCLK, Incoming Signal Rise Time
– – 13 ns
(41)
t
FSI
SI, CSB, SCLK, Incoming Signal Fall Time
– – 13 ns
(41)
t
SO(EN)
Time from Falling Edge of CSB to SO Low-impedance
– – 60 ns
(42)
t
SO(DIS)
Time from Rising Edge of CSB to SO High-impedance
– – 60 ns
(43)
Notes
38. Parameters guaranteed by design.
39. RSTB low duration measured with outputs enabled and going to OFF or disabled condition.
40. Maximum setup time required for the 10XSC425 is the minimum guaranteed time needed from the microcontroller.
41. Rise and Fall time of incoming SI, CSB, and SCLK signals suggested for design consideration to prevent the occurrence of double
pulsing.
42. Time required for output status data to be available for use at SO. 1.0 kon pull-up on CSB.
43. Time required for output status data to be terminated at SO. 1.0 kon pull-up on CSB.
Table 5. Dynamic Electrical Characteristics (continued)
Characteristics noted under conditions 6.0 V V
PWR
 20 V, 3.0 V  V
DD
 5.5 V, - 40 C  T
A
 125 C, GND = 0 V, unless
otherwise noted. Typical values noted reflect the approximate parameter means at T
A
= 25 °C under nominal conditions, unless
otherwise noted.
Symbol Characteristic Min Typ Max Unit Notes