Chapter 9: Configuration, Design Security, and Remote System Upgrades in the Cyclone III Device Family
9–7
Configuration Features
Configuration File Size
Table 9–3 lists the uncompressed configuration file sizes for the Cyclone III device
family. To calculate the amount of storage space required for multiple device
configurations, add the file size of each device together.
.
Table 9–3. Cyclone III Device Family Uncompressed Raw Binary File (.rbf) Sizes
Device
Data Size (bits)
3,000,000
EP3C5
EP3C10
3,000,000
EP3C16
4,100,000
EP3C25
5,800,000
Cyclone III
EP3C40
9,600,000
EP3C55
14,900,000
20,000,000
28,600,000
26,766,760
26,766,760
50,610,728
50,610,728
EP3C80
EP3C120
EP3CLS70
EP3CLS100
EP3CLS150
EP3CLS200
Cyclone III LS
Use the data in Table 9–3 only to estimate the file size before design compilation.
Different configuration file formats, such as Hexadecimal (.hex) or Tabular Text
File (.ttf) formats, have different file sizes. However, for any specific version of the
Quartus II software, any design targeted for the same device has the same
uncompressed configuration file size. If you are using compression, the file size varies
after each compilation because the compression ratio is design dependent.
f
For more information about setting device configuration options or creating
configuration files, refer to the Software Settings section in volume 2 of the
Configuration Handbook.
Configuration and JTAG Pin I/O Requirements
Cyclone III devices are manufactured using the TSMC 65-nm low-k dielectric process;
Cyclone III LS devices are manufactured using the TSMC 60-nm low-k dielectric
process. Although Cyclone III device family uses TSMC 2.5-V transistor technology in
the I/O buffers, the devices are compatible and able to interface with 2.5-, 3.0-, 3.3-V
configuration voltage standards. However, you must follow specific requirements
when interfacing Cyclone III device family with 2.5-, 3.0-, 3.3-V configuration voltage
standards.
All I/O inputs must maintain a maximum AC voltage of 4.1 V. When using a JTAG
configuration scheme or a serial configuration device in an AS configuration scheme,
you must connect a 25- series resistor at the near end of the TDOand TDIpin or the
serial configuration device for the DATA[0]pin. When cascading Cyclone III device
family in a multi-device configuration, you must connect the repeater buffers between
the master and slave devices for DATAand DCLK
.
August 2012 Altera Corporation
Cyclone III Device Handbook
Volume 1
ALTERA [ ALTERA CORPORATION ]
