5–4
Chapter 5: DC and Switching Characteristics
Operating Conditions
Table 5–4. MAX II Device DC Electrical Characteristics (Note 1) (Part 2 of 2)
Symbol
IPULLUP
Parameter
Conditions
Minimum Typical Maximum
Unit
I/O pin pull-up resistor
current when I/O is
unprogrammed
—
—
—
300
µA
CIO
Input capacitance for
user I/O pin
—
—
—
—
—
—
8
8
pF
pF
CGCLK
Input capacitance for
dual-purpose
GCLK/user I/O pin
Notes to Table 5–4:
(1) Typical values are for TA = 25 °C, VCCINT = 3.3 or 2.5 V, and VCCIO = 1.5 V, 1.8 V, 2.5 V, or 3.3 V.
(2) This value is specified for normal device operation. The value may vary during power-up. This applies for all VCCIO settings (3.3, 2.5,
1.8, and 1.5 V).
(3) VI = ground, no load, no toggling inputs.
(4) This value applies to commercial and industrial range devices. For extended temperature range devices, the VSCHMITT typical value is
300 mV for VCCIO = 3.3 V and 120 mV for VCCIO = 2.5 V.
(5) The TCKinput is susceptible to high pulse glitches when the input signal fall time is greater than 200 ns for all I/O standards.
(6) This is a peak current value with a maximum duration of tCONFIG time.
(7) Pin pull-up resistance values will lower if an external source drives the pin higher than VCCIO
.
MAX II Device Handbook
© Novermber 2008 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
