EP2C35U484I8N Altera, EP2C35U484I8N Datasheet - Page 55

• Manufacturer Part Number: EP2C35U484I8N
• Description: IC CYCLONE II FPGA 33K 484-UBGA
• Manufacturer: Altera
• Series: Cyclone® IIr

Specifications of EP2C35U484I8N

• Number Of Logic Elements/cells: 33216
• Number Of Labs/clbs: 2076
• Total Ram Bits: 483840
• Number Of I /o: 322
• Voltage - Supply: 1.15 V ~ 1.25 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 484-UBGA
• For Use With: P0301 - DE2 CALL FOR ACADEMIC PRICING544-1733 - PCI KIT W/CYCLONE II EP2C35N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Other names: 544-2115

Figure 2–25. Cyclone II IOE in Bidirectional I/O Configuration
Altera Corporation
February 2007
Interconect
Column
or Row
io_clk[5..0]
data_in1
data_in0
Chip-Wide Reset
OE
clkout
aclr/prn
ce_in
ce_out
clkin
sclr/preset
The Cyclone II device IOE includes programmable delays to ensure zero
hold times, minimize setup times, or increase clock to output times.
A path in which a pin directly drives a register may require a
programmable delay to ensure zero hold time, whereas a path in which a
pin drives a register through combinational logic may not require the
delay. Programmable delays decrease input-pin-to-logic-array and IOE
input register delays. The Quartus II Compiler can program these delays
to automatically minimize setup time while providing a zero hold time.
Output Register
Input Register
OE Register
D
D
D
CLRN
CLRN
CLRN
PRN
ENA
PRN
ENA
PRN
ENA
Q
Q
Q
Pin Delay
Open-Drain Output
Output
Cyclone II Device Handbook, Volume 1
Input Register Delay
Logic Array Delay
or Input Pin to
Input Pin to
Cyclone II Architecture
V
CCIO
V
CCIO
Optional
PCI Clamp
Programmable
Pull-Up
Resistor
Bus Hold
2–43