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参数资料
| 型号： | DS2174QN+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/24页 |
| 文件大小： | 0K |
| 描述： | IC BERT ENHANCED 44-PLCC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 500 |
| 功能： | 增强型位误码率测试器（EBERT） |
| 接口： | E1，J1，T1 |
| 电路数： | 1 |
| 电源电压： | 3 V ~ 3.6 V |
| 电流 - 电源： | 50mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LCC（J 形引线） |
| 供应商设备封装： | 44-PLCC（16.59x16.59） |
| 包装： | 带卷 (TR) |
| 包括： | 错误计数器，样式发生器和检测器 |
DS2174
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Control Register 3 (Address = 2h)
(MSB)
(LSB)
PL7
PL6
PL5
PL4
PL3
PL2
PL1
PL0
SYMBOL
FUNCTION
PL7
Pattern Length Bit 7. Bit 7 of [8:0] end address of repetitive pattern data.
PL6
Pattern Length Bit 6. Bit 6 of [8:0] end address of repetitive pattern data.
PL5
Pattern Length Bit 5. Bit 5 of [8:0] end address of repetitive pattern data.
PL4
Pattern Length Bit 4. Bit 4 of [8:0] end address of repetitive pattern data.
PL3
Pattern Length Bit 3. Bit 3 of [8:0] end address of repetitive pattern data.
PL2
Pattern Length Bit 2. Bit 2 of [8:0] end address of repetitive pattern data.
PL1
Pattern Length Bit 1. Bit 1 of [8:0] end address of repetitive pattern data.
PL0
Pattern Length Bit 0. Bit 0 of [8:0] end address of repetitive pattern data.
Control Register 4 (Address = 3h)
(MSB)
(LSB)
TEST
CLK_INV
R/W
RAM
COUNT
SEED
PL8
SYMBOL
FUNCTION
TEST
Factory Use. Must be set to 0 for proper operation.
TEST
Factory Use. Must be set to 0 for proper operation.
CLK_INV
TCLKO Invert.
0 = TCLKO polarity is normal
1 = TCLKO polarity is inverted
R/W
Read/Write Select. This bit is used with the RAM bit to read or write the
RAM.
0 = Write to the RAM
1 = Read from the RAM
RAM
RAM Select. This bit should be set when repetitive pattern data is being
loaded into the RAM. See flowchart in Section 4 for a description of this
process.
0 = BERT state machine has control of the RAM
1 = Parallel port has read and write access to the RAM
COUNT
Select Bit for Registers Ah–Fh.
0 = Registers Ah–Fh refer to bit count registers.
1 = Registers Ah–Fh refer to error count registers.
SEED
Select Bit for Registers 5h–8h.
0 = Registers 5h–8h refer to tap select registers.
1 = Registers 5h–8h refer to preload seed registers.
PL8
Pattern Length Bit 8. Bit 8 of [8:0] End Address of Repetitive Pattern Data.
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| DS2175S | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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