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January 18, 2011

CPS-10Q

CPS-10Q Datasheet

2010 Integrated Device Technology, Inc. All rights reserved.

14 Interrupt (IRQ) Electrical Specifications

At recommended operating conditions with VDD3 = 3.3V ± 5%

At recommended operating conditions with VDD3 = 2.5V ± 100mV

Figure 13 IRQ Timing Diagram

The IRQ pin is an open-drain driver. IDT recommends a weak pull-up resistor (2-10k Ohm) be placed on this pin to VDD3. The IRQ pin goes active low

when any special error filter error flag is set, and is cleared when all error flags are reset. Please refer to the device user’s manual for full detail.

Parameter

Symbol

Min

Max

Unit

Output low voltage (IOL = 4mA, VDD3 = Min.)

VOL

00.4

V

Output fall time from VIH(min) to VIL(max) with a bus

capacitance from 10pF to 400pF

tOF

-25

ns

Input current each I/O pin (input voltage is between

0.1 x VDD3 and 0.9 x VDD3 (max))

II

-10

10

uA

Capacitance for IRQ_N

CI

-10

pF

Table 15 IRQ Electrical Specifications (VDD3 = 3.3V ± 5%)

Parameter

Symbol

Min

Max

Unit

Output low voltage (IOL = 2mA, VDD3 = Min.)

VOL

00.4

V

Output fall time from VIH(min) to VIL(max) with a bus

capacitance from 10pF to 400pF

tOF

-25

ns

Input current each I/O pin (input voltage is between

0.1 x VDD3 and 0.9 x VDD3 (max))

II

-10

10

uA

Capacitance for IRQ_N

CI

-10

pF

Table 16 IRQ Electrical Specifications (VDD3 = 2.5V ± 100mV)