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HC210 Datasheet(PDF) 203 Page - Altera Corporation |
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HC210 Datasheet(HTML) 203 Page - Altera Corporation |
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203 / 228 page ![]() Altera Corporation 8–15 September 2008 Preliminary External Memory Interface Support Programmable Drive Strength Support The maximum current strength setting is the default setting in the Quartus II software and achieves maximum I/O performance. Stratix II device output buffers for each I/O pin have a programmable drive strength control for certain I/O standards. HardCopy II support for these settings differs from that found in Stratix II devices. For compatibility with HardCopy II HC210 and HC220 devices, you must restrict the I/O drive settings of Stratix II companion devices, as shown in Table 8–10. EP2S60 HC220 (2) 672-pin FineLine BGA 29 31 EP2S90 HC220 (2) 780-pin FineLine BGA 29 31 EP2S130 HC220 (2) 780-pin FineLine BGA 29 31 EP2S90 HC230 (2) 1,020-pin FineLine BGA 44 46 EP2S130 HC230 (2) 1,020-pin FineLine BGA 44 46 EP2S180 HC230 (2) 1,020-pin FineLine BGA 44 46 EP2S180 HC240 (3) 1,020-pin FineLine BGA 88 92 EP2S180 HC240 (3) 1,508-pin FineLine BGA 116 116 Notes to Table 8–9: (1) Pin count does not include dedicated PLL input and output pins. (2) The total number of receiver channels for HC210, HC220, and HC230 devices include two non-dedicated clock channels that can optionally be used as data channels. (3) The total number of receiver channels for HC240 devices include four non-dedicated clock channels that can optionally be used as data channels. Table 8–9. Differential Channels with Stratix II and HardCopy II Companion Devices (Part 2 of 2) Note (1) Stratix II and HardCopy II Companion Devices Package Transmitters Receivers |
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