HC230F1020 Altera, HC230F1020 Datasheet - Page 87

• Manufacturer Part Number: HC230F1020
• Manufacturer: Altera

Specifications of HC230F1020

• Lead Free Status / RoHS Status: Not Compliant

Hot Socketing
Altera Corporation
September 2008
HardCopy II devices offer hot socketing, which is also known as hot
plug-in or hot swap, and power sequencing support without the use of
any external devices. You can insert or remove a HardCopy II device in a
system during system operation without causing undesirable effects to
the running system bus or the board that was inserted into the system.
The hot socketing feature in HardCopy II devices allow:
■
■
■
■
Note to
(1)
Note to
(1)
Table 4–50. DQS Bus Clock Skew Adder Specifications
(tDQS_CLOCK_SKEW_ADDER)
Table 4–51. DQS Phase Offset Delay Per Stage
the device itself.
bus operation when HardCopy II I/Os are inserted in the system.
External input signals to I/O pins of the device do not internally
power the V
paths within the device.
This skew specification is the absolute maximum and minimum skew. For example,
skew on a ×4 DQ group is 40 ps or ± 20 ps.
The delay settings are linear. The valid settings for phase offset are -64 to +63 for
frequency mode 0 and -32 to +31 for frequency modes 1, 2, and 3. The typical
value equals the average of the minimum and maximum values.
Signal pins do not drive the V
The device can be driven before power-up without any damage to
I/O pins remain tri-stated during power-up, so they do no disrupt
Table
Table 4–51
×18 DQ per DQS
×36 DQ per DQS
HardCopy II Devices
×4 DQ per DQS
×9 DQ per DQS
4–50:
Mode
All
CCIO
or V
CCINT
Note (1)
power supplies of the device via internal
CCIO
DQS Clock Skew Adder
, V
Min
9
CCPD
, or V
Note (1)
40
70
75
95
CCINT
Max
14
power supplies.
Hot Socketing
Unit
ps
4–45
Unit
ps
ps
ps
ps