EP3C25U256I7 Altera, EP3C25U256I7 Datasheet - Page 71

• Manufacturer Part Number: EP3C25U256I7
• Description: IC CYCLONE III FPGA 25K 256 UBGA
• Manufacturer: Altera
• Series: Cyclone® IIIr

Specifications of EP3C25U256I7

• Number Of Logic Elements/cells: 24624
• Number Of Labs/clbs: 1539
• Total Ram Bits: 608256
• Number Of I /o: 156
• Voltage - Supply: 1.15 V ~ 1.25 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 256-UBGA
• Family Name: Cyclone III
• Number Of Logic Blocks/elements: 24624
• # I/os (max): 156
• Frequency (max): 437.5MHz
• Process Technology: 65nm
• Operating Supply Voltage (typ): 1.2V
• Logic Cells: 24624
• Ram Bits: 608256
• Operating Supply Voltage (min): 1.15V
• Operating Supply Voltage (max): 1.25V
• Operating Temp Range: -40C to 100C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 256
• Package Type: UFBGA
• For Use With: 544-2370 - KIT STARTER CYCLONE III EP3C25
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -
• Lead Free Status / Rohs Status: Not Compliant

Chapter 2: Cyclone III LS Device Data Sheet
Glossary
Table 2–39. Glossary (Part 2 of 5)
© December 2009
Letter
Q
R
P
PLL Block
R
Receiver Input
Waveform
RSKM (Receiver
input skew
margin)
L
Term
—
Altera Corporation
The following block diagram highlights the PLL specification parameters.
Receiver differential input discrete resistor (external to the Cyclone III LS device)
Receiver Input Waveform for LVDS and LVPECL Differential Standards
High-speed I/O Block: The total margin left after accounting for the sampling window and
TCCS. RSKM = (TUI – SW – TCCS) / 2
Core Clock
Key
Single-Ended Waveform
Differential Input Waveform
CLK
Reconfigurable in User Mode
V
CM
Switchover
V
f
ID
IN
N
f
INPFD
V
ID
Definitions
PFD
—
M
CP
Phase tap
LF
VCO
Cyclone III Device Handbook, Volume 2
f
VCO
V
p - n
Positive Channel (p) = V
Negative Channel (n) = V
Ground
ID
0 V
Counters
C0..C4
CLKOUT Pins
f
f
OUT _EXT
OUT
GCLK
IH
IL
2–27