EP1S20F672C6 Altera, EP1S20F672C6 Datasheet - Page 107

• Manufacturer Part Number: EP1S20F672C6
• Description: IC STRATIX FPGA 20K LE 672-FBGA
• Manufacturer: Altera
• Series: Stratix®r

Specifications of EP1S20F672C6

• Number Of Logic Elements/cells: 18460
• Number Of Labs/clbs: 1846
• Total Ram Bits: 1669248
• Number Of I /o: 426
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 672-FBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -
• Other names: 544-1853; EP1S20F672C6

Figure 2–55. External Clock Outputs for PLLs 5 & 6
Notes to
(1)
(2)
(3)
(4)
Altera Corporation
July 2005
e0 Counter
e1 Counter
e2 Counter
e3 Counter
The design can use each external clock output pin as a general-purpose output pin from the logic array. These pins
are multiplexed with IOE outputs.
Two single-ended outputs are possible per output counter⎯ either two outputs of the same frequency and phase or
one shifted 180° .
EP1S10, EP1S20, and EP1S25 devices in 672-pin BGA and 484- and 672-pin FineLine BGA packages only have two
pairs of external clocks (i.e., pll_out0p, pll_out0n, pll_out1p, and pll_out1n).
Differential SSTL and HSTL outputs are implemented using two single-ended output buffers, which are
programmed to have opposite polarity.
Figure
2–55:
4
From IOE (1), (2)
From IOE (1)
From IOE (1)
From IOE (1)
From IOE (1)
From IOE (1)
From IOE (1)
From IOE (1)
(3)
Stratix Device Handbook, Volume 1
pll_out0p (3), (4)
pll_out0n (3), (4)
pll_out1p (3), (4)
pll_out1n (3), (4)
pll_out2p (3), (4)
pll_out2n (3), (4)
pll_out3p (3), (4)
pll_out3n (3), (4)
Stratix Architecture
2–93