epm2210gm100i Altera Corporation, epm2210gm100i Datasheet - Page 62

• Manufacturer Part Number: epm2210gm100i
• Description: Section I. Max Ii Device Family Data Sheet
• Manufacturer: Altera Corporation

MAX II Hot-Socketing Specifications
4–2
MAX II Device Handbook, Volume 1
Devices Can Be Driven before Power-Up
Signals can be driven into the MAX II device I/O pins and GCLK[3..0]
pins before or during power-up or power-down without damaging the
device. MAX II devices support any power-up or power-down sequence
(V
design.
I/O Pins Remain Tri-Stated during Power-Up
A device that does not support hot-socketing may interrupt system
operation or cause contention by driving out before or during power-up.
In a hot socketing situation, the MAX II device’s output buffers are turned
off during system power-up. MAX II devices do not drive out until the
device attains proper operating conditions and is fully configured. Refer
to
voltages.
Signal Pins Do Not Drive the V
MAX II devices do not have a current path from I/O pins or GCLK[3..0]
pins to the V
device may be inserted into (or removed from) a system board that was
powered up without damaging or interfering with system-board
operation. When hot socketing, MAX II devices may have a minimal
effect on the signal integrity of the backplane.
AC and DC Specifications
You can power up or power down the V
sequence. During hot socketing, the I/O pin capacitance is less than 8 pF.
MAX II devices meet the following hot socketing specifications:
■
■
1
I
specification applies when the device is being powered up or powered
down. This specification takes into account the pin capacitance but not
board trace and external loading capacitance. Additional capacitance for
trace, connector, and loading must be taken into consideration separately.
The peak current duration due to power-up transients is 10 ns or less.
IOPIN
CCIO1
“Power-On Reset Circuitry” on page 4–6
The hot socketing DC specification is: | I
The hot socketing AC specification is: | I
less.
is the current at any user I/O pin on the device. The AC
, V
MAX II devices are immune to latch-up when hot socketing. If
the TCK JTAG input pin is driven high during hot socketing, the
current on that pin might exceed the specifications above.
Core Version a.b.c variable
CCIO2
CCIO
, V
or V
CCIO3
CCINT
, V
CCIO4
pins before or during power-up. A MAX II
, V
CCINT
CCIO
), simplifying the system-level
or V
CCIO
for information about turn-on
CCINT
and V
IOPIN
IOPIN
Power Supplies
| < 300 μA.
| < 8 mA for 10 ns or
CCINT
Altera Corporation
pins in any
December 2007