IXP2400 Intel, IXP2400 Datasheet - Page 108

• Manufacturer Part Number: IXP2400
• Manufacturer: Intel

Specifications of IXP2400

• Operating Supply Voltage (typ): 1.3/1.5/2.5/3.3V
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

Intel
108
Table 50. DDR SDRAM DC Parameters for 100/150 MHz (Continued)
Table 51. DDR SDRAM AC Parameters for 100/150 MHz
®
IXP2400 Network Processor
VIL (AC)
VIH (AC)
C
Tck
Tck (high)
Tck (low)
Tjt (jitter
time)
T
tDQSCK
T
T
T
T
T
T
T
T
T
T
T
T
T
SKEW
CKVB
CKVA
CKE_VB
CKE_VA
CS_VB
CS_VA
DVB
DVA
SU
HD
DSS
DSH
WPRE
IO
Symbol
Symbol
D_CK period
D_CK high time
D_CK low time
D_CK cycle to cycle
Skew between any system memory
differential clock pair
D_RAS_L, D_CAS_L, D_WE_L,
D_A[12:0], D_BA[1:0]. Valid Before
CK rising Edge
D_RAS_L, D_CAS_L, D_WE_L,
D_A[12:0], D_BA[1:0]. Valid
D_CKE_[1:0]. Valid Before D_CK
Rising Edge
D_CKE_[1:0]. Valid After D_CK
Rising Edge
D_DM_[8:0], D_UNUSED_CS_L_2,
D_CS_L[1:0]. Valid Before D_DQS
Rising Edge
D_DM_[8:0], D_UNUSED_CS_L_2,
D_CS_L[1:0]. Valid After D_DQS
Rising Edge
D_DQ[63:0], D_ECC[7:0] Valid
Before D_DQS[1:0] Rising or Falling
Edge
D_DQ[63:0], D_ECC[7:0] valid After
D_DQS[1:0] rising or falling edge
D_DQ and D_ECC Input Setup Time
to D_DQS Rising or Falling Edge
D_DQ and D_ECC Input Hold Time
to D_DQS Rising or Falling Edge
D_DQS Falling Edge Output Access
Time to D_CK Rising Edge
D_DQS Falling Edge Output Access
Time from D_CK Rising Edge
D_DQS Write Preamble Duration
DDR input low voltage, AC
DDR input high voltage, AC
DDR input/output pin capacitance
Parameter
Parameter
3.11
3.19
2.50
3.10
2.50
3.10
2.50
3.10
0.95
0.95
2.77
2.80
4.65
Min
6.6
2.5
—
—
150 MHz
VDREF + 0.31
Minimum
4.690
+ or - 170
—
total)
Max
(340
132
-0.9
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4.67
4.79
3.99
3.49
3.99
3.49
3.99
3.49
1.25
1.25
4.16
4.21
6.98
Min
3.5
10
—
—
VDREF - 0.31
Maximum
100 MHz
5.370
—
+ or - 255
total)
Max
(510
198
-0.7
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Datasheet
Unit
pF
psec
psec
V
V
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns