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LCMXO2-640ZE-1TG100C Datasheet(PDF) 25 Page - Lattice Semiconductor

Part # LCMXO2-640ZE-1TG100C
Description  MachXO2??Family Data Sheet
PDF  106 Pages
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Manufacturer  LATTICE [Lattice Semiconductor]
Direct Link  http://www.latticesemi.com
Logo LATTICE - Lattice Semiconductor

LCMXO2-640ZE-1TG100C Datasheet(HTML) 25 Page - Lattice Semiconductor

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2-21
Architecture
MachXO2 Family Data Sheet
Figure 2-17. Output Gearbox
More information on the output gearbox is available in TN1203, Implementing High-Speed Interfaces with
MachXO2 Devices.
DDR Memory Support
Certain PICs on the right edge of MachXO2-640U, MachXO2-1200/U and larger devices, have additional circuitry
to allow the implementation of DDR memory interfaces. There are two groups of 14 or 12 PIOs each on the right
edge with additional circuitry to implement DDR memory interfaces. This capability allows the implementation of up
to 16-bit wide memory interfaces. One PIO from each group contains a control element, the DQS Read/Write
D4
D0
D3
D1
S1
T1
S0
QC
ODDRx2_A
ODDRx2_C
ODDRx2_C
ECLK0/1
Q45
Q67
S4
S6
D Q
D Q
T4
T6
D6
D Q
D Q
CE
D Q
CE
0
1
0
1
Q01
Q23
S0
S2
T0
T2
Q32
Q10
S5
S3
D
Q
T5
T3
CE
0
1
D Q
Q76
Q54
S7
D
Q
T7
D Q
D Q
D Q
CE
0
1
S2
S4
GND
S7
S6
S5
S3
D2
D7
D5
SCLK
0
1
0
1
0
1
1
0
1
Q34
Q56
Q67
GND
Q45
S1
Q12
SEL /0
UPDATE
Q23
Q/QA
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
0
1
0
1
0
1
0
1
0
1
0
CE
CE
D Q
CE
D Q
CE
0
1
0
1
CDN



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