ACEX1 datasheet(35/86 Pages) ETC

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Altera Corporation

ACEX 1K Programmable Logic Device Family Data Sheet

SameFrame

Pin-Outs

ACEX 1K devices support the SameFrame pin-out feature for

FineLine BGA packages. The SameFrame pin-out feature is the

arrangement of balls on FineLine BGA packages such that the lower-ball-

count packages form a subset of the higher-ball-count packages.

SameFrame pin-outs provide the flexibility to migrate not only from

device to device within the same package, but also from one package to

another. A given printed circuit board (PCB) layout can support multiple

device density/package combinations. For example, a single board layout

can support a range of devices from an EP1K10 device in a 256-pin

FineLine BGA package to an EP1K100 device in a 484-pin FineLine BGA

package.

The Altera software provides support to design PCBs with SameFrame

pin-out devices. Devices can be defined for present and future use. The

Altera software generates pin-outs describing how to lay out a board that

takes advantage of this migration. Figure 18 shows an example of

SameFrame pin-out.

Figure 18. SameFrame Pin-Out Example

Table 10 shows the ACEX 1K device/package combinations that support

SameFrame pin-outs for ACEX 1K devices. All FineLine BGA packages

support SameFrame pin-outs, providing the flexibility to migrate not only

from device to device within the same package, but also from one package

to another. The I/O count will vary from device to device.

Designed for 484-Pin FineLine BGA Package

Printed Circuit Board

256-Pin FineLine BGA Package

(Reduced I/O Count or

Logic Requirements)

484-Pin FineLine BGA Package

(Increased I/O Count or

Logic Requirements)

256-Pin

FineLine

BGA

484-Pin

FineLine

BGA

ACEX1 датащи(PDF) 35 Page - List of Unclassifed Manufacturers