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参数资料
| 型号： | DS2117MB |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Bus Terminator |
| 英文描述： | 9-LINE 52 ohm SCSI BUS TERMINATOR, PDSO36 |
| 封装： | SSOP-36 |
| 文件页数： | 6/9页 |
| 文件大小： | 265K |
| 代理商： | DS2117MB |
DS2117M
6 of 9
PIN DESCRIPTION Table 1
PIN
SYMBOL
DESCRIPTION
1
VREF
Reference Voltage. 2.85 volt reference in SE mode and 1.25 volt
reference in LVD mode; must be decoupled with a 4.7 F cap.
2, 3
NC
No Connect. Do not connect these pins.
4-7, 11-16,
22-25, 29-32
RxP
RxN
Signal Termination. Connect to SCSI bus signal lines.
8, 10, 26,
9, 28, 27
HS GND
Heat Sink Ground. Internally connected to the mounting pad. Should
be grounded.
17
ISO
Isolation. When pulled high, the DS2117M isolates its bus pins (RxP,
RxN) from the SCSI bus.
18
GND
Ground. Signal ground; 0.0 volts.
19
MSTR/SLV
Master/slave. Mode select for the non-controlling terminator. When
pulled high (MSTR), the DIFFSENSE driver is enabled.
20
DIFFSENSE
DIFFSENSE. Output to drive the SCSI bus DIFFSENS line.
21
DIFF_CAP
DIFFSENSE CAPACITOR. Connect 0.1 F capacitor for
DIFFSENSE filter. Input to detect the type of device (differential or
single-ended) on the SCSI bus.
33
SE
Single-ended. SE output of DIFFSENSE receiver; output high
indicates SE bus operation.
34
LVD
Low Voltage Differential. LVD output of DIFFSENSE receiver;
output high indicates LVD bus operation.
35
HVD
High Voltage Differential. HVD output of DIFFSENSE receiver;
output high indicates HVD bus operation or thermal shutdown.
36
TPWR
Termination Power. Connect to the SCSI TERMPWR line and
decouple with 2.2 F capacitor.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Termpower Voltage
SE mode
LVD mode
Vtpwr(SE)
Vtpwr(LVD)
4.0
2.7
5.5
V
Logic 0
Vil
-0.3
+0.8
V
Logic 1
Vih
2.0
Vtpwr + 0.3
V
Operating Temperature
Vamb
0
70
°C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2117MB/T&R | 制造商:Maxim Integrated Products 功能描述:IC TERM SCSI LVD/SE ULT-3 36SSOP |
| DS2117MB/T&R | 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 |
| DS2117MB/T&R/ | 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 |
| DS2117MX/T&R | 制造商:Maxim Integrated Products 功能描述:IC TERM SCSI LVD/SE ULT-3 FCHIP |
| DS2117MX/T&R | 功能描述:IC TERM SCSI LVD/SE ULT-3 FCHIP RoHS:否 类别:集成电路 (IC) >> 接口 - 信号终端器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:SCSI，SE 端子数:9 电源电压:4 V ~ 5.25 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:管件 |
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