3–2

Chapter 3: DC and Switching Characteristics for MAX V Devices

Operating Conditions

MAX V Device Handbook

May 2011

Altera Corporation

Recommended Operating Conditions

Table 3–2 lists recommended operating conditions for the MAX V device family.

Table 3–2. Recommended Operating Conditions for MAX V Devices

Symbol

Parameter

Conditions

Minimum

Maximum

Unit

1.8-V supply voltage for internal logic and

in-system programming (ISP)

MAX V devices

1.71

1.89

V

Supply voltage for I/O buffers, 3.3-V

operation

—

3.00

3.60

V

Supply voltage for I/O buffers, 2.5-V

operation

—

2.375

2.625

V

Supply voltage for I/O buffers, 1.8-V

operation

—

1.71

1.89

V

Supply voltage for I/O buffers, 1.5-V

operation

—

1.425

1.575

V

Supply voltage for I/O buffers, 1.2-V

operation

—

1.14

1.26

V

Input voltage

(2), (3), (4)

–0.5

4.0

V

Output voltage

—

0

V

Operating junction temperature

Commercial range

0

85

°C

Industrial range

–40

100

°C

Extended range (5)

–40

125

°C

Notes to Table 3–2:

(1) MAX V device ISP and/or user flash memory (UFM) programming using JTAG or logic array is not guaranteed outside the recommended

operating conditions (for example, if brown-out occurs in the system during a potential write/program sequence to the UFM, Altera recommends

that you read back the UFM contents and verify it against the intended write data).

(2) The minimum DC input is –0.5 V. During transitions, the inputs may undershoot to –2.0 V for input currents less than 100 mA and periods

shorter than 20 ns.

(3) During transitions, the inputs may overshoot to the voltages shown below based on the input duty cycle. The DC case is equivalent to 100%

duty cycle. For more information about 5.0-V tolerance, refer to the Using MAX V Devices in Multi-Voltage Systems chapter.

Max. Duty Cycle

4.0 V

100% (DC)

4.1 V

90%

4.2 V

50%

4.3 V

30%

4.4 V

17%

4.5 V

10%

(5) For the extended temperature range of 100 to 125°C, MAX V UFM programming (erase/write) is only supported using the JTAG interface. UFM

programming using the logic array interface is not guaranteed in this range.