Datasheet > DS90CR281MTD

DS90CR281MTD

更新时间： 2024-09-12 22:40:19

品牌	Logo	应用领域
美国国家半导体 - NSC		接口集成电路驱动
页数	文件大小	规格书
14页	281K
描述
28-Bit Channel Link

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数据手册

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DS90CR281MTD 数据手册

July 1997

DS90CR281/DS90CR282

28-Bit Channel Link

ground) are needed. This provides a 80% reduction in re-

quired cable width, which provides a system cost savings,

reduces connector physical size and cost, and reduces

shielding requirements due to the cables’ smaller form fac-

tor.

General Description

The DS90CR281 transmitter converts 28 bits of CMOS/TTL

data into four LVDS (Low Voltage Differential Signaling) data

streams. A phase-locked transmit clock is transmitted in par-

allel with the data streams over a fifth LVDS link. Every cycle

of the transmit clock 28 bits of input data are sampled and

transmitted. The DS90CR282 receiver converts the LVDS

data streams back into 28 bits of CMOS/TTL data. At a trans-

mit clock frequency of 40 MHz, 28 bits of TTL data are trans-

mitted at a rate of 280 Mbps per LVDS data channel. Using

The 28 CMOS/TTL inputs can support a variety of signal

combinations. For example, 7 4-bit nibbles or 3 9-bit (byte +

parity) and 1 control.

Features

n Narrow bus reduces cable size and cost

40 MHz clock, the data throughput is 1.12 Gbit/s

(140 Mbytes/s).

1V common mode range (ground shifting)

The multiplexing of the data lines provides a substantial

cable reduction. Long distance parallel single-ended buses

typically require a ground wire per active signal (and have

very limited noise rejection capability). Thus, for a 28-bit wide

data bus and one clock, up to 58 conductors are required.

With the Channel Link chipset as few as 11 conductors (4

data pairs, 1 clock pair and a minimum of one

n 290 mV swing LVDS data transmission

n 1.12 Gbit/s data throughput

n Low swing differential current mode drivers reduce EMI

n Rising edge data strobe

n Power down mode

n Offered in low profile 56-lead TSSOP package

Block Diagrams

DS90CR281

DS90CR282

DS012638-27

DS012638-1

Order Number DS90CR281MTD

See NS Package Number MTD56

Order Number DS90CR282MTD

See NS Package Number MTD56

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

DS012638

www.national.com

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与DS90CR281MTD相关器件

型号	品牌	获取价格	描述	数据表
DS90CR281MTD/NOPB	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PDSO56, PLASTIC, TSSOP-56
DS90CR281MTDX	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PDSO56, PLASTIC, TSSOP-56
DS90CR281MTDX/NOPB	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PDSO56, PLASTIC, TSSOP-56
DS90CR282	TI	获取价格	28-Bit Channel Link
DS90CR282MTD	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PDSO56, PLASTIC, TSSOP-56
DS90CR282MTD	NSC	获取价格	28-Bit Channel Link
DS90CR282MTD/NOPB	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PDSO56, PLASTIC, TSSOP-56
DS90CR282MTDX	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PDSO56, PLASTIC, TSSOP-56
DS90CR282MTDX/NOPB	TI	获取价格	SPECIALTY INTERFACE CIRCUIT, PDSO56, PLASTIC, TSSOP-56
DS90CR283	NSC	获取价格	28-Bit Channel Link-66 MHz