External Memory Interface Specifications - Altera Cyclone IV Device Handbook

1–32
Table 1–35. Emulated LVDS Transmitter Timing Specifications for Cyclone IV Devices
Symbol Modes
t —
DUTY
TCCS —
Output jitter
—
(peak to peak)
(2)
t —
LOCK
Notes to Table 1–35:
(1) Cyclone IV E—emulated LVDS transmitter is supported at the output pin of all I/O Banks.
Cyclone IV GX—emulated LVDS transmitter is supported at the output pin of I/O Banks 3, 4, 5, 6, 7, 8, and 9.
(2) t is the time required for the PLL to lock from the end-of-device configuration.
LOCK
(3) Cyclone IV E 1.0 V core voltage devices only support C8L, C9L, and I8L speed grades. Cyclone IV E 1.2 V core voltage devices only support
C6, C7, C8, I7, and A7 speed grades. Cyclone IV GX devices only support C6, C7, C8, and I7 speed grades.
Table 1–36. LVDS Receiver Timing Specifications for Cyclone IV Devices
Symbol Modes
×10
×8
f (input
×7
HSCLK
clock
×4
frequency)
×2
×1
×10
×8
×7
HSIODR
×4
×2
×1
SW —
Input jitter
—
tolerance
(2)
t —
LOCK
Notes to Table 1–36:
(1) Cyclone IV E—LVDS receiver is supported at all I/O Banks.
Cyclone IV GX—LVDS receiver is supported at I/O Banks 3, 4, 5, 6, 7, 8, and 9.
(2) t is the time required for the PLL to lock from the end-of-device configuration.
LOCK
(3) Cyclone IV E 1.0 V core voltage devices only support C8L, C9L, and I8L speed grades. Cyclone IV E 1.2 V core voltage devices only support
C6, C7, C8, I7, and A7 speed grades. Cyclone IV GX devices only support C6, C7, C8, and I7 speed grades.

External Memory Interface Specifications

The external memory interfaces for Cyclone IV devices are auto-calibrating and easy
to implement.
Cyclone IV Device Handbook,
Volume 3
C6 C7, I7
Min Max Min Max
45 55 45 55
— 200 — 200
— 500 — 500
— 1 —
C6 C7, I7
Min Max Min Max
10 437.5 10 370
10 437.5 10 370
10 437.5 10 370
10 437.5 10 370
10 437.5 10 370
10 437.5 10 402.5
100 875 100 740
80 875 80 740
70 875 70 740
40 875 40 740
20 875 20 740
10 437.5 10 402.5
— 400 — 400
— 500 — 500
— 1 —
C8, A7 C8L, I8L
Min Max Min
45 55 45
— 200 —
— 550 —
1 — 1 —
(1), (3)
C8, A7
Min Max Min
10 320 10
10 320 10
10 320 10
10 320 10
10 320 10
10 402.5 10
100 640 100
80 640 80
70 640 70
40 640 40
20 640 20
10 402.5 10
— 400 —
— 550 —
1 — 1 —
Chapter 1: Cyclone IV Device Datasheet
Switching Characteristics
(1), (3)
(Part 2 of 2)
C9L
Max Min Max
55 45 55
200 — 200
600 — 700
1 — 1
C8L, I8L C9L
Max Min Max
320 10 250
320 10 250
320 10 250
320 10 250
320 10 250
362 10 265
640 100 500
640 80 500
640 70 500
640 40 500
640 20 500
362 10 265
550 — 640
600 — 700
1 — 1
December 2016 Altera Corporation
Unit
%
ps
ps
ms
Unit
MHz
MHz
MHz
MHz
MHz
MHz
Mbps
Mbps
Mbps
Mbps
Mbps
Mbps
ps
ps
ms