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參數(shù)資料
| 型號： | DS2108S |
| 英文描述： | Differential SCSI Switchable Terminator |
| 中文描述： | 差動式SCSI切換終結(jié)者 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大小： | 68K |
| 代理商： | DS2108S |
DS2108
3 of 5
TYPICAL DIFFERENTIAL SCSI BUS CONFIGURATION
Figure 2
NOTES:
1.
Two DS2108s required per 8–bit SCSI device and three DS2108s per 16–bit SCSI device.
2.
Mid–bus termination effectively removed by grounding
PD
pin.
3.
Termination power to be provided as specified in SCSI–3 Parallel Interface (SPI) document.
4.
Local TERMPWR bypassing is recommended by the SPI document with values shown. The bypass
capacitors should be located as close as possible to the DS2108s. Only one pair of capacitors is
required per SCSI device (may be shared between DS2108s on same device).
PIN DESCRIPTION
Table 1
PIN
SYMBOL
1, 11
DESCRIPTION
Termination Power.
Should be connected to the SCSI TERMPWR line.
Bypass with a 2.2 μF cap in parallel with a 0.1 μF cap as shown in Figure
2.
Signal Termination Negative.
Connect to –SIGNAL of SCSI bus.
TPWR
2, 3, 4, 5, 6,
7, 8, 9, 10
12
13, 23
14, 15, 16,
17, 18, 19,
20, 21, 22
24
R1N…R9N
NC
GND
No Connect.
Do not connect any signal to this pin.
Ground.
Signal ground; 0.0V.
Signal Termination Positive.
Connect to +SIGNAL of SCSI bus.
R1P…R9P
PD
Power Down.
When tied low, the DS2108 enters a power-down mode.
Contains an internal 50K pull-up. Strap low to deactivate the DS2108,
leave open circuited to activate the DS2108.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2108S/T&R | 制造商:Maxim Integrated Products 功能描述:SCSI DIFFERENTIAL TERMINATOR-SO-TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TERM SCSI DIFF/SWITCH 24-SOIC |
| DS2108S/T&R | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| DS2108S/T&R/C02 | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| DS2108S/T&R/C03 | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| DS2108S/T&R+C02 | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
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