MCIMX35 Motorola Semiconductor Products, MCIMX35 Datasheet - Page 26

• Manufacturer Part Number: MCIMX35
• Manufacturer: Motorola Semiconductor Products

4.6.2
26
Duty cycle
Clock frequency
Output pad slew rate
Output pad di/dt
Duty cycle
Clock frequency
Output pad slew rate (max. drive)
Output pad slew rate (high drive)
Output pad slew rate (standard drive)
Output pad di/dt (max. drive)
Output pad di/dt (high drive)
Output pad di/dt (standard drive)
MCIMX35 (i.MX35) Multimedia Applications Processor for Automotive Products Advance Information, Rev. 0
Table 22. AC Electrical Characteristics of DDR Type IO Pads in MobileDDR Mode, Fast Slew Rate
1
2
AC input logic high
AC input logic low
AC differential cross point
voltage for output
The Jedec SSTL_18 specification (JESD8–15a) for a SSTL interface for class II operation supersedes
any specification in this document.
The typical value of Vox(ac) is expected to be about 0.5*NVCC and Vox(ac) is expected to track
variation in NVCC. Vox(ac) indicates the voltage at which the differential output signal must cross.
Cload=25 pF.
AC Electrical Characteristics for DDR Pads (DDR2, Mobile DDR, and
SDRAM Modes)
Parameter
Parameter
Table 20. AC Electrical Characteristics of DDR Type IO Pads in DDR2 Mode
Parameter
2
1
Preliminary—Subject to Change Without Notice
Table 21. AC Requirements of DDR2 Pads
Symbol
Symbol
Symbol
VIH(ac)
VIL(ac)
Vox(ac)
Fduty
Fduty
tps
tps
tps
tdit
tdit
tdit
tps
tdit
f
f
Test Condition
Test Condition
NVCC/2–0.125
NVCC/2+0.25
25pF
50pF
25pF
50pF
25pF
50pF
25pF
50pF
25pF
50pF
25pF
50pF
25 pF
50 pF
25 pF
50 pF
—
—
—
—
Min.
–0.3
Rise/Fall
0.80/0.92
0.43/0.50
0.37/0.43
0.19/0.23
0.18/0.22
0.10/0.12
0.86/0.98
Rise/Fall
0.46/054
Min.
Min.
40
64
69
37
39
18
20
—
40
65
70
—
NVCC/2+0.125
NVCC/2–0.25
NVCC+0.3
Max.
1.35/1.50
0.72/0.81
0.62/0.70
0.33/0.37
0.31/0.35
0.16/0.18
0.72/0.81
1.35/1.5
Typ.
133
171
183
100
106
Typ.
133
157
167
50
50
52
50
Freescale Semiconductor
V
V
V
2.23/2.27
1.66/1.68
1.03/1.05
0.75/0.77
0.51/0.53
0.38/0.39
2.15/2.19
1.12/1.16
Rise/Fall
Rise/Fall
Max.
Max.
Units
407
432
232
246
116
123
373
396
60
—
60
—
mA/ns
mA/ns
mA/ns
mA/ns
Units
Units
MHz
V/ns
MHz
V/ns
V/ns
V/ns
%
%