Datasheet
NXP Semiconductors 21
10XS3435
SPI INTERFACE CHARACTERISTICS
(40)
Maximum frequency of SPI operation
f
SPI
– – 8.0 MHz
Required low state duration for RST
(41)
t
WRST
10 – – μs
Rising edge of CS to falling edge of CS (required setup time)
(42)
t
CS
– – 1.0 μs
Rising edge of RST to Falling Edge of CS (required setup time)
(42)
t
ENBL
– – 5.0 μs
Falling edge of CS to Rising Edge of SCLK (required setup time)
(42)
t
LEAD
– – 500 ns
Required high State Duration of SCLK (required setup time)
(42)
t
WSCLKh
– – 50 ns
Required low State Duration of SCLK (required setup time)
(42)
t
WSCLKl
– – 50 ns
Falling edge of SCLK to rising edge of CS (required setup time)
(42)
t
LAG
– – 60 ns
SI to falling Edge of SCLK (required setup time)
(43)
t
SI (SU)
– – 37 ns
Falling edge of SCLK to SI (required setup time)
(43)
t
SI (HOLD)
– – 49 ns
SO rise time
•C
L
= 80 pF
t
RSO
– – 13
ns
SO fall time
•C
L
= 80 pF
t
FSO
– – 13
ns
SI, CS, SCLK, incoming signal rise time
(43)
t
RSI
– – 13 ns
SI, CS, SCLK, incoming signal fall time
(43)
t
FSI
– – 13 ns
Time from falling edge of CS to SO low-impedance
(44)
t
SO(EN)
– – 60 ns
Time from rising edge of CS to SO high-impedance
(45)
t
SO(DIS)
– – 60 ns
Notes
40. Parameters guaranteed by design.
41. RST low duration measured with outputs enabled and going to OFF or disabled condition.
42. Maximum setup time required for the 10XS3435 is the minimum guaranteed time needed from the microcontroller.
43. Rise and Fall time of incoming SI, CS, and SCLK signals suggested for design consideration to prevent the occurrence of double pulsing.
44. Time required for output status data to be available for use at SO. 1.0 kOhm on pull-up on CS.
45. Time required for output status data to be terminated at SO. 1.0 kOhm on pull-up on CS.
Table 6. 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.
Characteristic Symbol Min Typ Max Unit