T110A103J050AS Kemet Corp., T110A103J050AS Datasheet - Page 41

• Manufacturer Part Number: T110A103J050AS
• Description: Tantalum Leaded Capacitor
• Manufacturer: Kemet Corp.

Altera Corporation
Power
Sequencing &
Hot-Socketing
The VCCINT pins must always be connected to a 2.5-V power supply. With
a 2.5-V V
5.0-V inputs. The VCCIO pins can be connected to either a 2.5-V or 3.3-V
power supply, depending on the output requirements. When the VCCIO
pins are connected to a 2.5-V power supply, the output levels are
compatible with 2.5-V systems. When the VCCIO pins are connected to a
3.3-V power supply, the output high is at 3.3 V and is therefore compatible
with 3.3-V or 5.0-V systems. Devices operating with V
than 3.0 V achieve a faster timing delay of t
Table 13
Notes:
(1)
(2)
Open-drain output pins on ACEX 1K devices (with a pull-up resistor to
the 5.0-V supply) can drive 5.0-V CMOS input pins that require a higher
V
When the pin is inactive, the resistor will pull up the trace to 5.0 V, thereby
meeting the CMOS V
low or tri-state; it will never drive high. The rise time is dependent on the
value of the pull-up resistor and load impedance. The I
specification should be considered when selecting a pull-up resistor.
Because ACEX 1K devices can be used in a mixed-voltage environment,
they have been designed specifically to tolerate any possible power-up
sequence. The V
order.
Signals can be driven into ACEX 1K devices before and during power up
without damaging the device. Additionally, ACEX 1K devices do not
drive out during power up. Once operating conditions are reached,
ACEX 1K devices operate as specified by the user.
Table 13. ACEX 1K MultiVolt I/O Support
IH
than LVTTL. When the open-drain pin is active, it will drive low.
The PCI clamping diode must be disabled on an input which is driven with a
voltage higher than V
When V
tolerant inputs.
V
CCIO
2.5
3.3
CCINT
summarizes ACEX 1K MultiVolt I/O support.
(V)
CCIO
level, input voltages are compatible with 2.5-V, 3.3-V, and
= 3.3 V, an ACEX 1K device can drive a 2.5-V device that has 3.3-V
CCIO
ACEX 1K Programmable Logic Device Family Data Sheet
2.5
v
v
OH
and V
CCIO
Input Signal (V)
requirement. The open-drain pin will only drive
.
CCINT
v
3.3
v
(1)
power planes can be powered in any
v
v
5.0
(1)
(1)
OD2
v
instead of t
2.5
v
(2)
Output Signal (V)
CCIO
OL
3.3
v
current
OD1
levels higher
.
5.0
v
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