EP1S20F780I6N Altera, EP1S20F780I6N Datasheet - Page 485
![IC STRATIX FPGA 20K LE 780-FBGA](/photos/6/72/67270/544-780-fbga_sml.jpg)
EP1S20F780I6N
Manufacturer Part Number
EP1S20F780I6N
Description
IC STRATIX FPGA 20K LE 780-FBGA
Manufacturer
Altera
Series
Stratix®r
Specifications of EP1S20F780I6N
Number Of Logic Elements/cells
18460
Number Of Labs/clbs
1846
Total Ram Bits
1669248
Number Of I /o
586
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
780-FBGA
Family Name
Stratix
Number Of Logic Blocks/elements
18460
# I/os (max)
586
Frequency (max)
450.05MHz
Process Technology
0.13um (CMOS)
Operating Supply Voltage (typ)
1.5V
Logic Cells
18460
Ram Bits
1669248
Operating Supply Voltage (min)
1.425V
Operating Supply Voltage (max)
1.575V
Operating Temp Range
-40C to 100C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
780
Package Type
FC-FBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EP1S20F780I6N
Manufacturer:
ALTERA
Quantity:
3 000
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Figure 5–8. High-Speed 1-to-1 Transmitter Clock Output
Note to
(1)
Using SERDES
to Implement
DDR
Altera Corporation
July 2005
This figure does not show additional circuitry for clock or data manipulation.
Figure
Logic Array
Stratix
5–8:
Some designs require a 2-to-1 data-to-clock ratio. These systems are
usually based on Rapid I/O, SPI-4 Phase 2 (POS_PHY Level 4), or
HyperTransport interfaces, and support various data rates. Stratix
devices meet this requirement for such applications by providing a
variable clock division factor. The SERDES clock division factor is set to 2
for double data rate (DDR).
An additional differential channel (as described in
Output” on page
transmitter clock output signal with half the frequency of the data.
For example, when a system is required to transmit 6.4 Gbps with a
2-to-1 clock-to-data ratio, program the SERDES with eight high-speed
channels running at 800 Mbps each. When you set the output clock
division factor (2 for this example), the Quartus II software automatically
assigns a ninth channel as the transmitter clock output. You can edge- or
center-align the transmitter clock by selecting the default PLL phase or
selecting the negative-edge transmitter clock output. On the receiver side,
the clock signal is connected to the receiver PLL's clock.
The multiplication factor W is also calculated automatically. The data rate
divides by the input clock frequency to calculate the W factor. The
deserialization factor (J) may be 4, 7, 8, or 10.
Transmitter Circuit
PD9
PD8
PD7
PD6
PD5
PD4
PD3
PD2
PD0
PD1
PLL (1)
Fast
Register
Parallel
TXLOADEN
× W
5–10) is automatically configured to produce the
PD9
PD8
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
High-Speed Differential I/O Interfaces in Stratix Devices
Register
Serial
Stratix Device Handbook, Volume 2
Inverter
“Transmitter Clock
TXOUT+
TXOUT−
5–13
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