1–2

Chapter 1: Cyclone III Device Datasheet

Electrical Characteristics

Cyclone III Device Handbook

July 2012

Altera Corporation

Volume 2

Additionally, device operation at the absolute maximum ratings for extended periods

of time has adverse effects on the device.

Maximum Allowed Overshoot or Undershoot Voltage

During transitions, input signals may overshoot to the voltage listed in Table 1–2 and

undershoot to –2.0 V for a magnitude of currents less than 100 mA and for periods

shorter than 20 ns. Table 1–2 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.

Table 1–1. Cyclone III Devices Absolute Maximum Ratings

(1)

Symbol

Parameter

Min

Max

Unit

Supply voltage for internal logic

–0.5

1.8

V

Supply voltage for output buffers

–0.5

3.9

V

Supply voltage (analog) for phase-locked loop

(PLL) regulator

–0.5

3.75

V

Supply voltage (digital) for PLL

–0.5

1.8

V

DC input voltage

–0.5

3.95

V

DC output current, per pin

–25

40

mA

Electrostatic discharge voltage using the human

body model

—

±2000

V

Electrostatic discharge voltage using the

charged device model

—

±500

V

Storage temperature

–65

150

°C

Operating junction temperature

–40

125

°C

Note to Table 1–1:

(1) Supply voltage specifications apply to voltage readings taken at the device pins with respect to ground, not at the

power supply.