Altera Cyclone IV, Device Handbook

Page: 474 / 490

1–28 Chapter 1: Cyclone IV Device Datasheet
Switching Characteristics
Cyclone IV Device Handbook, December 2016 Altera Corporation
Volume 3
f
For more information about the supported maximum clock rate, device and pin
planning, IP implementation, and device termination, refer to
Section III: System
Performance Specifications of the External Memory Interfaces Handbook .
1
Actual achievable frequency depends on design- and system-specific factors. Perform
HSPICE/IBIS simulations based on your specific design and system setup to
determine the maximum achievable frequency in your system.
High-Speed I/O Specifications
Table 1–31 through Table 1–36 list the high-speed I/O timing for Cyclone IV devices.
For definitions of high-speed timing specifications, refer to “Glossary” on page 1–37 .
Table 1–31. RSDS Transmitter Timing Specifications for Cyclone IV Devices
(1) , (2) , (4)
(Part 1 of 2)
Symbol Modes
C6 C7, I7 C8, A7 C8L, I8L C9L
Unit
Min Typ Max Min Typ Max Min Typ Max Min Typ Max Min Typ Max
f
HSCLK
(input clock
frequency)
×10 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz
×8 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz
×7 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz
×4 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz
×2 5 — 180 5 — 155.5 5 — 155.5 5 — 155.5 5 — 132.5 MHz
×1 5 — 360 5 — 311 5 — 311 5 — 311 5 — 265 MHz
Device
operation in
Mbps
×10 100 — 360 100 — 311 100 — 311 100 — 311 100 — 265 Mbps
×8 80 — 360 80 — 311 80 — 311 80 — 311 80 — 265 Mbps
×7 70 — 360 70 — 311 70 — 311 70 — 311 70 — 265 Mbps
×4 40 — 360 40 — 311 40 — 311 40 — 311 40 — 265 Mbps
×2 20 — 360 20 — 311 20 — 311 20 — 311 20 — 265 Mbps
×1 10 — 360 10 — 311 10 — 311 10 — 311 10 — 265 Mbps
t
DUTY
— 45 — 55 45 — 55 45 — 55 45 — 55 45 — 55 %
Transmitter
channel-to-
channel skew
(TCCS)
— — — 200 — — 200 — — 200 — — 200 — — 200 ps
Output jitter
(peak to peak)
— — — 500 — — 500 — — 550 — — 600 — — 700 ps
t
RISE
20 – 80%,
C
LOAD
=
5 pF
— 500 — — 500 — — 500 — — 500 — — 500 — ps
t
FALL
20 – 80%,
C
LOAD
=
5 pF
— 500 — — 500 — — 500 — — 500 — — 500 — ps