mpc5125 Freescale Semiconductor, Inc, mpc5125 Datasheet - Page 51

• Manufacturer Part Number: mpc5125
• Description: Mpc5125 Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

4.3.5.1
NOTES:
1
2
3
4
5
4.3.5.2
Freescale Semiconductor
Clock cycle time, CL = x
MCK AC differential crosspoint voltage
CK HIGH pulse width
CK LOW pulse width
Skew between MCK and DQS transitions
Address and control output setup time
relative to MCK rising edge
Address and control output hold time
relative to MCK rising edge
DQ and DM output setup time relative to
DQS
DQ and DM output hold time relative to
DQS
DQS-DQ skew for DQS and associated
DQ inputs
DQS window position related to CAS read
command
Clock cycle time, CL = x
MCK AC differential crosspoint voltage
CK HIGH pulse width
CK LOW pulse width
Skew between MCK and DQS
transitions
Address and control output setup time
relative to MCK rising edge
Measured with clock pin loaded with differential 100 Ω termination resistor.
Measured with all outputs except the clock loaded with 50 Ω termination resistor to V
All transitions measured at mid-supply (V
In this window, the first rising edge of DQS should occur. From the start of the window to DQS rising edge, DQS should be low.
The window position is given for t
SDRAM device. For other values of t
Parameter
Parameter
DDR SDRAM AC Timing Specifications
MobileDDR/LPDDR SDRAM AC Timing Specifications
Table 22. MobileDDR/LPDDR SDRAM Timing Specifications
At recommended operating conditions with V
At recommended operating conditions with V
DQSEN
Table 21. DDR SDRAM Timing Specifications
DQSEN
MPC5125 Microcontroller Data Sheet, Rev. 3
Symbol
t
= 2.0 t
V
OS(base)
t
t
t
t
DD_IO_MEM
t
Symbol
DH1(base)
DS1(base)
OH(base)
V
OS(base)
t
DQSS
OX-AC
t
t
DQSEN
t
t
t
, the window position is shifted accordingly.
DQSS
DQSQ
CK
CH
CL
OX-AC
t
t
t
CK
CH
CL
CK
(RDLY = 2, HALF DQS DLY = QUART DQS DLY = 0) with CL = 3 DDR
(V
(V
/2).
DD_IO_MEM
DD_IO_MEM
– (t
t
CK
t
t
2t
CK
CK
t
t
CK
CK
CK
CK
/2 – 1000
−0.25
6000
/2 – 1000
/2 – 1000
0.47
0.47
Min
−0.25
6000
/4 – 750
/4 – 750
0.47
0.47
Min
/4 – 600)
+ 1500
× 0.5) – 0.1 (V
× 0.5)– 0.15 (V
DD_IO_MEM
DD_IO_MEM
DD_IO_MEM
DD_IO_MEM
Electrical and Thermal Characteristics
3t
t
CK
DD_IO_MEM
CK
Max
0.53
0.53
0.25
/4 – 600
Max
0.53
0.53
0.25
of ±5%
of ±5%
—
—
—
—
—
—
—
– 1000
× 0.5) + 0.1
× 0.5) + 0.15
/2.
Unit Notes SpecID
t
t
t
Unit Notes SpecID
ps
ps
CK
CK
CK
t
t
t
V
ps
ps
ps
ps
ps
ps
ps
CK
CK
CK
V
1,2,3,4,
2,3
1,3
1,3
2,3
2,3
1,3
1,3
2,3
2,3
2,3
2,3
1
1
3
5
A5.10
A5.11
A5.1
A5.2
A5.3
A5.4
A5.5
A5.6
A5.7
A5.8
A5.9
A5.1
A5.2
A5.3
A5.4
A5.5
A5.6
51