HC4GX15 Datasheet, PDF (69/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 7: External Memory Interfaces in HardCopy IV Devices
7–3
Figure 7–1 shows a package-bottom view for HardCopy IV E external memory
support. Figure 7–2 shows a package-bottom view for HardCopy IV GX external
memory support, PLLs, DLLs, and I/O banks. The number of available I/O banks
and PLLs depends on the device density.
Figure 7–1. HardCopy IV E Package-Bottom View (Note 1), (2), (3)
DLL1
DLL4
8A
8B
8C
PLL_T1 PLL_T2
7C
7B
7A
PLL_L1
PLL_R1
1A
6A
1C
PLL_L2
PLL_L3
2C
6C
PLL_R2
PLL_R3
5C
2A
5A
PLL_L4
PLL_R4
3A
3B
3C
PLL_B1 PLL_B2
4C
4B
4A
DLL2
DLL3
Notes to Figure 7–1:
(1) The number of I/O banks and PLLs available depend on the device density.
(2) Not all HardCopy IV E devices support I/O banks 1B, 2B, 5B, and 6B.
(3) There is only one PLL on each side of the HC4E21, HC4E31, and HC4E41 devices. These devices do not support I/O banks 3B, 4B, 7B, and 8B.
© January 2010 Altera Corporation
HardCopy IV Device Handbook, Volume 1