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参数资料
| 型号： | DS2119M/T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/9页 |
| 文件大小： | 0K |
| 描述： | IC TERM SCSI LVD/SE ULT3 28TSSOP |
| 标准包装： | 2,500 |
| 类型： | SCSI，LVD，SE |
| 端子数： | 9 |
| 电源电压： | 4 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 带卷 (TR) |
1 of 9
REV: 010406
FEATURES
Fully Compliant with SCSI SPI-2, SPI-3,
SPI-4, Ultra160, and Ultra320
Provides Multimode Low-Voltage
Differential/Single-Ended (LVD/SE)
Termination for Nine Signal Line Pairs
Autoselection of LVD or SE Termination
5% Tolerance on SE and LVD Termination
Resistance
Low Power-Down Capacitance of 3pF
On-Board Thermal Shutdown Circuitry
SCSI Bus Hot Plug Compatible
Fully Supports Actively Negated SE SCSI
Signals
PIN CONFIGURATION
ORDERING INFORMATION
PART
VOLTAGE
(V)
TEMP RANGE PIN-PACKAGE
TOP MARK*
DS2119ME
5
0
°C to +70°C
28 TSSOP (0.173")
DS2119M
DS2119ME+
5
0
°C to +70°C
28 TSSOP (0.173")
DS2119M
DS2119ME/T&R
5
0
°C to +70°C
28 TSSOP (0.173")/Tape
and Reel
DS2119M
DS2119ME+T&R
5
0
°C to +70°C
28 TSSOP (0.173")/Tape
and Reel
DS2119M
+ 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 110 resistors are used. Three
DS2119M terminators are needed for a wide SCSI bus.
DS2119M
Ultra3 LVD/SE SCSI Terminator
www.maxim-ic.com
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24
27
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21
20
19
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17
16
R9N
R9P
R8N
HS GND
R7N
R7P
R6N
R6P
DIFF_CAP
DIFFSENSE
MSTR/SLV
R8P
RIN
R2P
R2N
R3P
R4P
R4N
R5P
R5N
ISO
GND
HS GND
TSSOP
13
14
28
15
VREF
RIP
TPWR
R3N
DS2119M
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| DS2118M | IC TERM SCSI LVD/SE ULT-3 36SSOP |
| DS21T07S+ | IC TERMINATOR SCSI 16-SOIC |
| DS21S07AE+T&R | IC TERMINATOR SCSI 20-TSSOP |
| DS2127+ | IC TERM SCSI LVD/SE 48-LQFP |
| DS21S07AE+ | IC TERMINATOR SCSI 20-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS211E | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Interface IC |
| DS211S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Interface IC |
| DS212 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| DS2120 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Ultra3 LVD SCSI Terminator |
| DS2120B | 功能描述:SCSI 接口集成电路 RoHS:否 制造商:Texas Instruments 工作电源电压:2.7 V to 5.25 V 电源电流:13 mA 最大工作温度:+ 70 C 最小工作温度:0 C 安装风格:SMD/SMT 封装 / 箱体:SSOP-36 封装:Tube |
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