AGLP030 datasheet(19/134 Pages) MICROSEMI

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IGLOO PLUS Low Power Flash FPGAs

Revision 16

2-5

Figure 2-2 • V2 Devices – I/O State as a Function of VCCI and VCC Voltage Levels

Region 1: I/O buffers are OFF

Region 2: I/O buffers are ON.

I/Os are functional (except differential inputs)

but slower because VCCI/VCC are below

specification. For the same reason, input

buffers do not meet VIH/VIL levels, and

output buffers do not meet VOH/VOL levels.

Min VCCI datasheet specification

voltage at a selected I/O

standard; i.e., 1.14 V,1.425 V, 1.7 V,

2.3 V, or 3.0 V

VCC

VCC = 1.14 V

Region 1: I/O Buffers are OFF

Activation trip point:

Va = 0.85 V ± 0.2 V

Deactivation trip point:

Vd = 0.75 V ± 0.2 V

Activation trip point:

Va = 0.9 V ± 0.15 V

Deactivation trip point:

Vd = 0.8 V ± 0.15 V

VCC = 1.575 V

Region 5: I/O buffers are ON

and power supplies are within

specification.

I/Os meet the entire datasheet

and timer specifications for

speed, VIH / VIL , VOH / VOL , etc.

Region 4: I/O

buffers are ON.

I/Os are functional

(except differential

but slower because VCCI is

below specification. For the

same reason, input buffers do not

meet VIH / VIL levels, and output

buffers do not meet VOH / VOL levels.

Region 4: I/O

buffers are ON.

I/Os are functional

(except differential inputs)

where VT can be from 0.58 V to 0.9 V (typically 0.75 V)

VCCI

Region 3: I/O buffers are ON.

I/Os are functional; I/O DC

specifications are met,

but I/Os are slower because

the VCC is below specification.

VCC = VCCI + VT

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