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參數(shù)資料
| 型號(hào)： | T7230A |
| 廠商： | Lineage Power |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 中文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 文件頁數(shù)： | 1/110頁 |
| 文件大?。?/td> | 752K |
| 代理商： | T7230A |
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Device Advisory
July 1998
T7230A Device Advisory for Version 1.0 and 2.0 of the Device
Introduction
This advisory applies to the T7230A device and includes errata to the June 1997 T7230A Primary Access
Framer/ControllerPreliminary Data Sheet (DS96-007TIC) and design issues in migrating from the T7230.
Advisory Items
1. A microprocessor write to register, PR11, may reset the device. Enabling any feature in this register is
unreliable. Some of the disabled features include the concentration highway interface (CHI) open collector
mode, the associated signaling mode (because the highway cannot be set to run with a 4.096 MHz clock),
and full system loopback.
2. Updated timing diagram and timing characteristics for the Motorola* microprocessor interface,
Figure 20 on page 69 of the T7230A preliminary data sheet, are shown in Figure 1 and Table 1 of this
advisory.
3. The T7230A concentration highway interface (CHI) timing diagram and timing characteristics are defined in
Figure 2, Table 2, and Table 3 of this advisory.
4. The unframed-auxiliary test pattern described in the Transmit Line Test Patterns section of the T7230A
preliminary data sheet, item 2 on page 58, does not exist.
5. The 80-pin TQFP package is not available.
6. The microprocessor interface timing should be reviewed when migrating from the T7230.
7. The T7230A does not freeze the received signaling when a frame error occurs or an out of frame condition
exists. The omission of this feature needs to be considered when migrating from the T7230.
* Motorola is a registered trademark of Motorola, Inc.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T-7230A--ML | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| T7230-ML3 | 制造商:AGERE 功能描述: |
| T7-231A1 | 功能描述:撥動(dòng)開關(guān) ON NONE OFF 2 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點(diǎn)形式: 開關(guān)功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風(fēng)格: 端子密封: 觸點(diǎn)電鍍: 照明: |
| T7-231A2 | 制造商:OTTO Engineering Inc 功能描述:2POLE, SOLDER, STD, |
| T7-231A2D | 功能描述:撥動(dòng)開關(guān) ON NONE OFF 2 Pole Standard LeverLock RoHS:否 制造商:OTTO 觸點(diǎn)形式: 開關(guān)功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風(fēng)格: 端子密封: 觸點(diǎn)電鍍: 照明: |
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