EP1SGX25DF672I6 Altera, EP1SGX25DF672I6 Datasheet - Page 97

• Manufacturer Part Number: EP1SGX25DF672I6
• Description: IC STRATIX GX FPGA 25K 672-FBGA
• Manufacturer: Altera
• Series: Stratix® GXr

Specifications of EP1SGX25DF672I6

• Number Of Logic Elements/cells: 25660
• Number Of Labs/clbs: 2566
• Total Ram Bits: 1944576
• Number Of I /o: 455
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 672-FBGA
• Family Name: Stratix GX
• Number Of Logic Blocks/elements: 25660
• # I/os (max): 455
• Frequency (max): 5GHz
• Process Technology: SRAM
• Operating Supply Voltage (typ): 1.5V
• Logic Cells: 25660
• Ram Bits: 1944576
• 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: 672
• Package Type: FC-FBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -
• Lead Free Status / Rohs Status: Not Compliant

Altera Corporation
February 2005
The read and write operation of the memory is controlled by the WREN
signal, which sets the ports into either read or write modes. There is no
separate read enable (RE) signal.
Writing into RAM is controlled by both the WREN and byte enable
(byteena) signals for each port. The default value for the byteena
signal is high, in which case writing is controlled only by the WREN signal.
The byte enables are available for the ×18, ×36, and ×72 modes. In the
×144 simple dual-port mode, the two sets of byteena signals
(byteena_a and byteena_b) are combined to form the necessary
16 byte enables.
64K
32K
16K
8K
Table 4–8. M-RAM Block Configurations (True Dual-Port)
Table 4–9. Byte Enable for M-RAM Blocks
byteena[3..0]
×
×
×
×
72
[0] = 1
[1] = 1
[2] = 1
[3] = 1
[4] = 1
[5] = 1
[6] = 1
[7] = 1
9
18
36
Port A
Tables 4–9
datain ×18
[17..9]
64K × 9
[8..0]
–
–
–
–
–
–
v
v
v
v
and
4–10
Stratix GX Device Handbook, Volume 1
summarize the byte selection.
32K × 18
v
v
v
v
Notes
datain ×36
[26..18]
[35..27]
[17..9]
[8..0]
Port B
–
–
–
–
(1),
16K × 36
(2)
Stratix GX Architecture
v
v
v
v
datain ×72
[26..18]
[35..27]
[44..36]
[53..45]
[62..54]
[71..63]
[17..9]
[8..0]
8K × 72
v
v
v
v
4–31