
Chapter 1: DC and Switching Characteristics for Stratix IV Devices
1–67
Glossary
March 2014
Altera Corporation
Stratix IV Device Handbook
Volume 4: Device Datasheet and Addendum
Document Revision History
Table 1–55 lists the revision history for this chapter.
V
VCM(DC)
DC Common mode input voltage.
VICM
Input Common mode voltage—The common mode of the differential signal at the receiver.
VID
Input differential voltage swing—The difference in voltage between the positive and
complementary conductors of a differential transmission at the receiver.
VDIF(AC)
AC differential input voltage—Minimum AC input differential voltage required for switching.
VDIF(DC)
DC differential input voltage— Minimum DC input differential voltage required for switching.
VIH
Voltage input high—The minimum positive voltage applied to the input which is accepted by
the device as a logic high.
VIH(AC)
High-level AC input voltage
VIH(DC)
High-level DC input voltage
VIL
Voltage input low—The maximum positive voltage applied to the input which is accepted by
the device as a logic low.
VIL(AC)
Low-level AC input voltage
VIL(DC)
Low-level DC input voltage
VOCM
Output Common mode voltage—The common mode of the differential signal at the
transmitter.
VOD
Output differential voltage swing—The difference in voltage between the positive and
complementary conductors of a differential transmission at the transmitter.
VSWING
Differential input voltage
VX
Input differential cross point voltage
VOX
Output differential cross point voltage
W
W
High-speed I/O block: Clock Boost Factor
X, Y, Z
——
Table 1–54. Glossary Table (Part 4 of 4)
Letter
Subject
Definitions
Table 1–55. Document Revision History (Part 1 of 3)
Date
Version
Changes
March 2014
5.8
January 2014
5.7
■ Updated Table 1–42.
December 2013
5.6
■ Updated Table 1–23 and Table 1–24.
November 2013
5.5
■ Updated Table 1–23 and Table 1–24.
November 2013
5.4
■ Updated Table 1–42, Table 1–23, and Table 1–24.
July 2012
5.3
■ Added Table 1–5 and Table 1–40.
■ Updated Table 1–15, Table 1–22, Table 1–23, Table 1–30, Table 1–33, Table 1–35,
Table 1–36, Table 1–39, Table 1–42 and Table 1–51.
■ Removed “Schmitt Trigger Input” section.
December 2011
5.2
■ Added Figure 1–7.
■ Updated Table 1–22 and Table 1–41.