Datasheet > DS2119M

DS2119M

更新时间： 2024-11-22 02:55:47

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
9页	308K
描述
Ultra3 LVD/SE SCSI Terminator

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中文翻译

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数据手册

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DS2119M 数据手册

DS2119M

Ultra3 LVD/SE SCSI Terminator

www.maxim-ic.com

PIN CONFIGURATION

FEATURES

ꢀ Fully Compliant with SCSI SPI-2, SPI-3,

SPI-4, Ultra160, and Ultra320

TPWR

R9N

VREF

RIP

ꢀ Provides Multimode Low-Voltage

Differential/Single-Ended (LVD/SE)

Termination for Nine Signal Line Pairs

DS2119M

RIN

R2P

R9P

R2N

R8N

HS GND

R3P

R8P

ꢀ Autoselection of LVD or SE Termination

HS GND

R7N

ꢀ 5% Tolerance on SE and LVD Termination

R3N

Resistance

R4P

R7P

R4N

R6N

ꢀ Low Power-Down Capacitance of 3pF

ꢀ On-Board Thermal Shutdown Circuitry

ꢀ SCSI Bus Hot Plug Compatible

R5P

R6P

DIFF_CAP

DIFFSENSE

MSTR/SLV

R5N

ISO

GND

ꢀ Fully Supports Actively Negated SE SCSI

TSSOP

Signals

ORDERING INFORMATION

VOLTAGE

PART

TEMP RANGE PIN-PACKAGE

TOP MARK*

(V)

DS2119ME

DS2119ME+

28 TSSOP (0.173")

DS2119M

0°C to +70°C

28 TSSOP (0.173")/Tape

and Reel

DS2119ME/T&R

DS2119M

0°C to +70°C

28 TSSOP (0.173")/Tape

and Reel

DS2119ME+T&R

DS2119M

0°C to +70°C

+ Denotes a lead-free/RoHS-compliant package.

* The top mark includes a "+" on lead-free packages.

DETAILED DESCRIPTION

The DS2119M Ultra3 LVD/SE SCSI terminator is both a low-voltage differential (LVD) and single-

ended (SE) terminator. The multimode operation enables the designer to implement LVD in current

products while allowing the end-user SE-backward compatibility with legacy devices. If the device is

connected in an LVD-only bus, the DS2119M will use LVD termination. If any SE devices are connected

to the bus, the DS2119M will use SE termination. This is accomplished automatically inside the part by

sensing the voltage on the SCSI bus DIFFSENS line.

For the LVD termination, the DS2119M integrates two current sources with nine precision resistor

strings. For the SE termination, one regulator and nine precision 110Ω resistors are used. Three

DS2119M terminators are needed for a wide SCSI bus.

1 of 9

REV: 010406

12 3 4 5 6 7...9

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与DS2119M相关器件

型号	品牌	获取价格	描述	数据表
DS2119ME	ROCHESTER	获取价格	9-LINE 110 ohm SCSI BUS TERMINATOR, PDSO28, TSSOP-28
DS2119ME	DALLAS	获取价格	SCSI Terminator, 9-Line, 52ohm, CMOS, PDSO28, TSSOP-28
DS2119ME	MAXIM	获取价格	Ultra3 LVD/SE SCSI Terminator
DS2119ME/T&R	MAXIM	获取价格	Ultra3 LVD/SE SCSI Terminator
DS2119ME+	ROCHESTER	获取价格	9-LINE 110 ohm SCSI BUS TERMINATOR, PDSO28, TSSOP-28
DS2119ME+	MAXIM	获取价格	SCSI Terminator, 9-Line, 110ohm, PDSO28, TSSOP-28
DS2119ME+T&R	MAXIM	获取价格	SCSI Terminator, 9-Line, 110ohm, PDSO28, TSSOP-28
DS2119ME+T&R/C13	MAXIM	获取价格	暂无描述
DS2119ME+T&R	MAXIM	获取价格	Ultra3 LVD/SE SCSI Terminator
DS211E	ETC	获取价格	Interface IC