DC Characteristics and Timing Specifications
Table 5–7. DC Characteristics of User I/O Pins Using Single-Ended Standards Notes (1), (2) (Part 2 of 2)
Test Conditions
Voltage Thresholds
I/O Standard
I
OL (mA)
IOH (mA)
Maximum VOL (V)
Minimum VOH (V)
1.5-V HSTL class I
1.5V HSTL class II
8
–8
0.4
0.4
VCCIO – 0.4
VCCIO – 0.4
16
–16
Notes to Table 5–7:
(1) The values in this table are based on the conditions listed in Tables 5–2 and 5–6.
(2) This specification is supported across all the programmable drive settings available as shown in the Cyclone II
Architecture chapter of the Cyclone II Device Handbook.
Differential I/O Standards
The RSDS and mini-LVDS I/O standards are only supported on output
pins. The LVDS I/O standard is supported on both receiver input pins
and transmitter output pins.
1
For more information on how these differential I/O standards
are implemented, refer to the High-Speed Differential Interfaces in
Cyclone II Devices chapter of the Cyclone II Device Handbook.
Figure 5–1 shows the receiver input waveforms for all differential I/O
standards (LVDS, LVPECL, differential 1.5-V HSTL class I and II,
differential 1.8-V HSTL class I and II, differential SSTL-2 class I and II, and
differential SSTL-18 class I and II).
Altera Corporation
February 2008
5–7
Cyclone II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
