DS26503 T1/E1/J1 BITS Element
19.3 Serial Bus
Table 19-3. AC Characteristics, Serial Bus
(VDD = 3.3V ±5%, TA = 0°C to +70°C for DS26503L; VDD = 3.3V ±5%, TA = -40°C to +85°C for
DS26503LN.) (Note 1,
CHARACTERISTIC (NOTE 3)
SYMBOL
MIN MAX UNITS
DIAGRAM
NUMBER
(NOTE 2)
Operating Frequency
Slave
fBUS(S)
10
MHz
1
Cycle Time: Slave
tCYC(S)
100
ns
2
Enable Lead Time
tLEAD(S)
15
ns
3
Enable Lag Time
tLAG(S)
15
ns
4
Clock (CLK) High Time
Slave
tCLKH(S)
50
ns
5
Clock (CLK) Low Time
Slave
tCLKL(S)
50
ns
6
Data Setup Time (inputs)
Slave
tSU(S)
5
ns
7
Data Hold Time (inputs)
Slave
tH(S)
15
ns
CPHA = 0
tA(CP0)
0
40
8
Access Time, Slave
(Note 4)
CPHA = 1
tA(CP1)
0
20
ns
9
Disable Time, Slave (Note 5)
tDIS(S)
25
ns
10
Data Valid Time, After Enable Edge
Slave (Note 6)
tV(S)
40
ns
11
Data Hold Time, Outputs, After Enable Edge
Slave
tHD(S)
5
ns
Note 1:
The timing parameters listed in this table are guaranteed by design (GBD).
Note 2:
Numbers refer to dimensions in the following
Note 3:
All timing is shown with respect to 20% VDD and 70% VDD, unless otherwise noted. 100pF load on all SPI pins.
Note 4:
Time to data active from high-impedance state.
Note 5:
Hold time to high-impedance state.
Note 6:
With 100pF on all SPI pins.
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