EP3C55F484C8N Altera, EP3C55F484C8N Datasheet - Page 204

• Manufacturer Part Number: EP3C55F484C8N
• Description: IC CYCLONE III FPGA 55K 484FBGA
• Manufacturer: Altera
• Series: Cyclone® IIIr

Specifications of EP3C55F484C8N

• Number Of Logic Elements/cells: 55856
• Number Of Labs/clbs: 3491
• Total Ram Bits: 2396160
• Number Of I /o: 327
• Voltage - Supply: 1.15 V ~ 1.25 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 484-FBGA
• Family Name: Cyclone III
• Number Of Logic Blocks/elements: 55856
• # I/os (max): 327
• Frequency (max): 402MHz
• Process Technology: 65nm
• Operating Supply Voltage (typ): 1.2V
• Logic Cells: 55856
• Ram Bits: 2396160
• Operating Supply Voltage (min): 1.15V
• Operating Supply Voltage (max): 1.25V
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 484
• Package Type: FBGA
• No. Of Logic Blocks: 3491
• Family Type: Cyclone III
• No. Of I/o's: 327
• I/o Supply Voltage: 3.3V
• Operating Frequency Max: 402MHz
• Operating Temperature Range: 0°C To +85°C
• Rohs Compliant: Yes
• For Use With: 544-2601 - KIT DEV CYCLONE III LS EP3CLS200544-2411 - KIT DEV NIOS II CYCLONE III ED.
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 544-2510

9–44
Cyclone III Device Handbook, Volume 1
1
After nSTATUS is released, the device is ready to receive configuration data and the
configuration stage begins. When nSTATUS is pulled high, the external host device
places the configuration data one byte at a time on the DATA[7..0]pins.
Cyclone III device family receives configuration data on the DATA[7..0] pins and
the clock is received on the DCLK pin. Data is latched into the device on the rising edge
of DCLK. Data is continuously clocked into the target device until CONF_DONE goes
high. The CONF_DONE pin goes high one byte early in FPP configuration mode. The
last byte is required for serial configuration (AS and PS) modes.
Two DCLK falling edges are required after CONF_DONE goes high to begin the
initialization of the device.
Supplying a clock on CLKUSR does not affect the configuration process. After the
CONF_DONE pin goes high, CLKUSR is enabled after the time specified as t
this time period elapses, Cyclone III device family requires certain amount of clock
cycles to initialize properly and enter user mode. For more information about the
initialization clock cycles required in the Cyclone III device family, refer to
on page
Cyclone III device family, refer to
The INIT_DONE pin is released and pulled high when initialization is complete. The
external host device must be able to detect this low-to-high transition which signals
the device has entered user mode. When initialization is complete, the device enters
user mode. In user mode, the user I/O pins no longer have weak pull-up resistors and
function as assigned in your design.
To ensure that DCLK and DATA[0] are not left floating at the end of the configuration,
the MAX II device must drive them either high or low, whichever is convenient on
your board. The DATA[0] pin is available as a user I/O pin after configuration. When
you choose the FPP scheme in the Quartus II software, the DATA[0] pin is tri-stated
by default in user mode and must be driven by the external host device. To change
this default option in the Quartus II software, select the Dual-Purpose Pins tab of the
Device and Pin Options dialog box.
The DCLK speed must be below the specified system frequency to ensure correct
configuration. No maximum DCLK period exists, which means you can pause
configuration by halting DCLK for an indefinite amount of time.
If a configuration error occurs during configuration and the Auto-restart
configuration after error option is turned on, the Cyclone III device family releases
nSTATUS after a reset time-out period (a maximum of 230 μs). After nSTATUS is
released and pulled high by a pull-up resistor, the external host device can try to
reconfigure the target device without needing to pulse nCONFIG low. If this option is
turned off, the external host device must generate a low-to-high transition (with a low
pulse of at least 500 ns) on nCONFIG to restart the configuration process.
The external host device can also monitor the CONF_DONE and INIT_DONE pins to
ensure successful configuration. The CONF_DONE pin must be monitored by the
external device to detect errors and to determine when programming is complete. If
all configuration data is sent but CONF_DONE or INIT_DONE has not gone high, the
external device must reconfigure the target device.
Chapter 9: Configuration, Design Security, and Remote System Upgrades in the Cyclone III Device Family
9–10. For more information about the supported CLKUSR f
Table 9–14 on page
9–47.
© December 2009 Altera Corporation
MAX
Configuration Features
value for
CD2CU
Table 9–5
. After