EP1C4F324C8 Altera, EP1C4F324C8 Datasheet - Page 51

• Manufacturer Part Number: EP1C4F324C8
• Description: IC CYCLONE FPGA 4K LE 324-FBGA
• Manufacturer: Altera
• Series: Cyclone®r

Specifications of EP1C4F324C8

• Number Of Logic Elements/cells: 4000
• Number Of Labs/clbs: 400
• Total Ram Bits: 78336
• Number Of I /o: 249
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 324-FBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -
• Other names: 544-1044

Figure 2–32. Cyclone IOE in Bidirectional I/O Configuration
Altera Corporation
May 2008
Column or Row
Interconect
ioe_clk[5..0]
comb_datain
data_in
Chip-Wide Reset
OE
clkout
aclr/prn
ce_in
ce_out
clkin
sclr/preset
The Cyclone 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 combinatorial 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
Output Register
Input Register
OE Register
D
D
D
CLRN
CLRN
CLRN
PRN
ENA
PRN
ENA
PRN
ENA
Q
Q
Q
Pin Delay
Drive Strength Control
Output
Open-Drain Output
Slew Control
Input Register Delay
Logic Array Delay
Logic Array Delay
or Input Pin to
Input Pin to
Input Pin to
V
CCIO
V
CCIO
Optional
PCI Clamp
I/O Structure
Preliminary
Bus Hold
Programmable
Pull-Up
Resistor
2–45