Datasheet > CY3732VP84-100NXC

CY3732VP84-100NXC

更新时间： 2025-07-21 05:28:27

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		/
页数	文件大小	规格书
64页	1733K
描述
5V, 3.3V, ISRTM High-Performance CPLDs

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Ultra37000 CPLD Family

0−16

I/O

CELL

MACRO-

CELL

PRODUCT

TERMS

MACRO-

CELL

0−16

to cells

2, 4, 6 8, 10, 12

PRODUCT

TERMS

FROM

PIM

72 x 87

PRODUCT TERM

ARRAY

PRODUCT

TERM

ALLOCATOR

MACRO-

CELL

I/O

CELL

0−16

PRODUCT

TERMS

MACRO-

CELL

0−16

PIM

PRODUCT

TERMS

Figure 1. Logic Block with 50% Buried Macrocells

Low-Power Option

variable fashion. The software automatically takes advantage

of this capability—the user does not have to intervene.

Each logic block can operate in high-speed mode for critical

path performance, or in low-power mode for power conser-

vation. The logic block mode is set by the user on a logic block

by logic block basis.

Note that neither product term sharing nor product term

steering have any effect on the speed of the product. All

worst-case steering and sharing configurations have been

incorporated in the timing specifications for the Ultra37000

devices.

Product Term Allocator

Through the product term allocator, software automatically

distributes product terms among the 16 macrocells in the logic

block as needed. A total of 80 product terms are available from

the local product term array. The product term allocator

provides two important capabilities without affecting perfor-

mance: product term steering and product term sharing.

Ultra37000 Macrocell

Within each logic block there are 16 macrocells. Macrocells

can either be I/O Macrocells, which include an I/O Cell which

is associated with an I/O pin, or buried Macrocells, which do

not connect to an I/O. The combination of I/O Macrocells and

buried Macrocells varies from device to device.

Product Term Steering

Buried Macrocell

Product term steering is the process of assigning product

terms to macrocells as needed. For example, if one macrocell

requires ten product terms while another needs just three, the

product term allocator will “steer” ten product terms to one

macrocell and three to the other. On Ultra37000 devices,

product terms are steered on an individual basis. Any number

between 0 and 16 product terms can be steered to any

macrocell. Note that 0 product terms is useful in cases where

a particular macrocell is unused or used as an input register.

Figure 2 displays the architecture of buried macrocells. The

buried macrocell features a register that can be configured as

combinatorial, a D flip-flop, a T flip-flop, or a level-triggered

latch.

The register can be asynchronously set or asynchronously

reset at the logic block level with the separate set and reset

product terms. Each of these product terms features program-

mable polarity. This allows the registers to be set or reset

based on an AND expression or an OR expression.

Product Term Sharing

Clocking of the register is very flexible. Four global

synchronous clocks and a product term clock are available to

clock the register. Furthermore, each clock features program-

mable polarity so that registers can be triggered on falling as

well as rising edges (see the Clocking section). Clock polarity

is chosen at the logic block level.

Product term sharing is the process of using the same product

term among multiple macrocells. For example, if more than

one output has one or more product terms in its equation that

are common to other outputs, those product terms are only

programmed once. The Ultra37000 product term allocator

allows sharing across groups of four output macrocells in a

Document #: 38-03007 Rev. *D

Page 4 of 64

1 2 345 6 7...64

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与CY3732VP84-100NXC相关器件

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CY3732VP84-100UXC	CYPRESS	获取价格	5V, 3.3V, ISRTM High-Performance CPLDs
CY3732VP84-100YXC	CYPRESS	获取价格	5V, 3.3V, ISRTM High-Performance CPLDs
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CY3732VP84-125BGXC	CYPRESS	获取价格	5V, 3.3V, ISRTM High-Performance CPLDs
CY3732VP84-125JXC	CYPRESS	获取价格	5V, 3.3V, ISRTM High-Performance CPLDs
CY3732VP84-125NTXC	CYPRESS	获取价格	5V, 3.3V, ISRTM High-Performance CPLDs
CY3732VP84-125NXC	CYPRESS	获取价格	5V, 3.3V, ISRTM High-Performance CPLDs
CY3732VP84-125UXC	CYPRESS	获取价格	5V, 3.3V, ISRTM High-Performance CPLDs

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