HC230 ALTERA [Altera Corporation], HC230 Datasheet - Page 62

• Manufacturer Part Number: HC230
• Description: HardCopy II Device Family
• Manufacturer: ALTERA [Altera Corporation]

HardCopy Series Handbook, Volume 1
4–20
Notes to
(1)
(2)
(3)
25 Ω R
3.3/2.5
50 Ω R
3.3/2.5
25 Ω R
1.8
50 Ω R
1.8
50 Ω R
1.5
Table 4–30. Series On-Chip Termination Specification for I/O Banks Supporting Memory Interface IOEs
Notes
Symbol
For information on which I/O banks support memory interface IOEs, refer to the Description, Architecture, and
Features chapter in the HardCopy II Device Family Data Sheet section in volume 1 of the HardCopy Series Handbook.
The resistance tolerances for calibrated SOCT and POCT are at the time of initial calibration. If the temperature or
voltage changes over time, the tolerance may also change.
This table applies only to HC210, HC220, HC230 and HC240 devices.
S
S
S
S
S
(1), (2),
Table
Internal series termination with
calibration (25-Ω setting)
Internal series termination
without calibration (25-Ω setting)
Internal series termination with
calibration (50-Ω setting)
Internal series termination
without calibration (50-Ω setting)
Internal series termination with
calibration (25-Ω setting)
Internal series termination
without calibration (25-Ω setting)
Internal series termination with
calibration (50-Ω setting)
Internal series termination
without calibration (50-Ω setting)
Internal series termination with
calibration (50-Ω setting)
Internal series termination
without calibration (50-Ω setting)
4–30:
(3)
Description
Tables 4–30
specification when using series or differential on-chip termination.
and
4–31
V
V
V
V
CC IO
CC IO
CC IO
CC IO
V
V
V
V
V
V
Conditions
CC IO
CC IO
CC IO
CC IO
CC IO
CC IO
define the specification for internal termination
= 3.3/2.5 V
= 3.3/2.5 V
= 3.3/2.5 V
= 3.3/2.5 V
= 1.8 V
= 1.8 V
= 1.8 V
= 1.8 V
= 1.5 V
= 1.5 V
Commercial
± 30
± 30
± 30
± 30
± 36
Max
± 5
± 5
± 5
± 5
± 8
Resistance Tolerance
Industrial
± 30
± 30
± 30
± 30
± 36
Max
± 10
± 10
± 10
± 10
± 10
Altera Corporation
September 2008
Unit
%
%
%
%
%
%
%
%
%
%