ep1c6t144i8es Altera Corporation, ep1c6t144i8es Datasheet - Page 73

• Manufacturer Part Number: ep1c6t144i8es
• Description: Cyclone Fpga Family
• Manufacturer: Altera Corporation

Preliminary Information
Altera Corporation
Notes to
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10) The Cyclone LVDS interface requires a resistor network outside of the transmitter channels.
(11) Capacitance is sample-tested only. Capacitance is measured using time-domain reflections (TDR). Measurement
Power
Consumption
C
C
C
C
C
Table 38. Cyclone Device Capacitance
IO
LVDS
VREF
DPCLK
CLK
See the
Conditions beyond those listed in
operation at the absolute maximum ratings for extended periods of time may have adverse affects on the device.
Minimum DC input is –0.5 V. During transitions, the inputs may undershoot to –0.5 V or overshoot to 4.6 V for input
currents less than 100 mA and periods shorter than 20 ns.
Maximum V
All pins, including dedicated inputs, clock, I/O, and JTAG pins, may be driven before V
powered.
Typical values are for T
This value is specified for normal device operation. The value may vary during power-up. This applies for all V
settings (3.3, 2.5, 1.8, and 1.5 V).
Pin pull-up resistance values will lower if an external source drives the pin higher than V
Drive strength is programmable according to values in
accuracy is within 0.5 pF.
Symbol
Tables 23
Operating Requirements for Altera Devices Data
CC
Input capacitance for user I/O pin
Input capacitance for dual-purpose LVDS/user I/O pin
Input capacitance for dual-purpose V
Input capacitance for dual-purpose DPCLK/user I/O pin.
Input capacitance for CLK pin.
– 38:
rise time is 100 ms, and V
A
= 25 C, V
Designers can use the Altera web power calculator to estimate the device
power.
Cyclone devices require a certain amount of power-up current to
successfully power up because of the nature of the leading-edge process
on which they are fabricated.
Table 39
Cyclone device. Designers should select power supplies and regulators
that can supply this amount of current when designing with Cyclone
devices. This specification is for commercial operating conditions.
Measurements were performed with an isolated Cyclone device on the
board. Decoupling capacitors were not used in this measurement. To
factor in the current for decoupling capacitors, sum up the current for each
capacitor using the following equation:
I = C (dV/dt)
Table 23
CCINT
shows the maximum power-up current required to power up a
Parameter
CC
= 1.5 V, and V
may cause permanent damage to a device. Additionally, device
Note (11)
must rise monotonically.
Sheet.
REF
Table 14 on page
CCIO
/user I/O pin.
= 1.5 V, 1.8 V, 2.5 V, and 3.3 V.
55.
Cyclone FPGA Family Data Sheet
Typical
12.0
CCINT
4.0
4.7
4.4
4.7
CCIO
.
and V
CCIO
Unit
are
pF
pF
pF
pF
pF
CCIO
73