
56858 Technical Data, Rev. 6
40
Freescale Semiconductor
4.9 Serial Peripheral Interface (SPI) Timing
1. Parameters listed are guaranteed by design.
Figure 4-23 SPI Timing 1
Operating Conditions: VSS = VSSIO = VSSA = 0 V, VDD = 1.62-1.98V, VDDIO = VDDA = 3.0–3.6V, TA = –40° to +120°C, CL ≤ 50pF, fop = 120MHz
Characteristic
Symbol
Min
Max
Unit
See Figure
Cycle time
Master
Slave
tC
25
—
ns
Enable lead time
Master
Slave
tELD
—
12.5
—
ns
Enable lag time
Master
Slave
tELG
—
12.5
—
ns
Clock (SCLK) high time
Master
Slave
tCH
9
12.5
—
ns
Clock (SCLK) low time
Master
Slave
tCL
12
12.5
—
ns
Data set-up time required for inputs
Master
Slave
tDS
10
2
—
ns
Data hold time required for inputs
Master
Slave
tDH
0
2
—
ns
Access time (time to data active from high-impedance state)
Slave
tA
515
ns
Disable time (hold time to high-impedance state)
Slave
tD
29
ns
Data valid for outputs
Master
Slave (after enable edge)
tDV
—
2
14
ns
Data invalid
Master
Slave
tDI
0
—
ns
Rise time
Master
Slave
tR
—
11.5
10.0
ns
Fall time
Master
Slave
tF
—
9.7
9.0
ns