EP3C5E144C8N Datasheet, PDF (316/348 Pages) Altera Corporation – Ability to disable external JTAG port

2–2
Chapter 2: Cyclone III LS Device Data Sheet
Electrical Characteristics
Table 2–1. Cyclone III LS Devices Absolute Maximum Ratings ⁽¹⁾ (Part 2 of 2)
Symbol
Parameter
Min
Max
Unit
V_CCA
V_{CCD_PLL}
V_CCBAT ⁽²⁾
Supply (analog) voltage for PLL regulator
Supply (digital) voltage for PLL
Battery back-up power supply for design
security volatile key register
–0.5
3.75
V
–0.5
1.8
V
–0.5
3.75
V
V_I
DC input voltage
–0.5
3.95
V
I_OUT
DC output current, per pin
–25
40
mA
V_ESDHBM
Electrostatic discharge voltage using the human
body model
—
±2000
V
V_ESDCDM
Electrostatic discharge voltage using the
charged device model
—
±500
V
T_STG
Storage temperature
–65
150
°C
T_J
Operating junction temperature
–40
100
°C
Note to Table 2–1:
(1) Supply voltage specifications apply to voltage readings taken at the device pins with respect to ground, not at the
power supply.
(2) V_CCBAT is tied to Power-on reset (POR). If the V_CCBAT is below 1.2 V, the device will not power up.
Maximum Allowed Overshoot or Undershoot Voltage
During transitions, input signals may overshoot to the voltage listed in Table 2–2 and
undershoot to –2.0 V for a magnitude of currents less than 100 mA and for periods
shorter than 20 ns.
Table 2–2 lists the maximum allowed input overshoot voltage and the duration of the
overshoot voltage as a percentage over the lifetime of the device. The maximum
allowed overshoot duration is specified as percentage of high-time over the lifetime of
the device.
Cyclone III Device Handbook
Volume 2
December 2011 Altera Corporation