1–28
Chapter 1: Cyclone IV Device Datasheet
Switching Characteristics
f
1
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.
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)
C6
C7, I7
C8, A7
C8L, I8L
C9L
Symbol
Modes
Unit
Min Typ Max Min Typ Max Min Typ
Max Min Typ Max Min Typ Max
×10
×8
×7
×4
×2
×1
×10
×8
×7
×4
×2
×1
—
5
5
—
—
—
—
—
—
—
—
—
—
—
—
—
180
180
180
180
180
360
5
5
5
5
5
5
—
—
—
—
—
—
—
—
—
—
—
—
—
155.5
155.5
155.5
155.5
155.5
311
5
5
5
5
5
5
—
—
—
—
—
—
—
—
—
—
—
—
—
155.5
155.5
155.5
155.5
155.5
311
5
5
5
5
5
5
—
—
—
—
—
—
—
—
—
—
—
—
—
155.5
155.5
155.5
155.5
155.5
311
5
5
5
5
5
5
—
—
—
—
—
—
—
—
—
—
—
—
—
132.5 MHz
132.5 MHz
132.5 MHz
132.5 MHz
132.5 MHz
265 MHz
265 Mbps
265 Mbps
265 Mbps
265 Mbps
265 Mbps
265 Mbps
fHSCLK
(input clock
frequency)
5
5
5
5
100
80
70
40
20
10
45
360 100
360 80
360 70
360 40
360 20
360 10
311 100
311 100
311 100
311
311
311
311
311
55
80
70
40
20
10
45
311
311
311
311
311
55
80
70
40
20
10
45
311
311
311
311
311
55
80
70
40
20
10
45
Device
operation in
Mbps
tDUTY
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
ps
20 – 80%,
tRISE
CLOAD
5 pF
=
500
500
500
500
500
20 – 80%,
tFALL
CLOAD
5 pF
=
—
500
—
—
500
—
—
500
—
—
500
—
—
500
—
ps
Cyclone IV Device Handbook,
Volume 3
March 2016 Altera Corporation