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参数资料
| 型号： | DS2180AQN/T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/35页 |
| 文件大小： | 0K |
| 描述： | IC TRANSCEIVER T1 IND 44-PLCC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 500 |
| 功能： | 收发器 |
| 接口： | T1 |
| 电路数： | 1 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 3mA |
| 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： | 警报生成和检测，B7 填充模式，B8ZS 模式，错误检测和计数器，“硬件”模式，透明模式 |
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DS2180A
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4. RLOS transitions high during the F-bit time that caused an OOF event (any two of four consecutive
FT or FPS bits are in error) if auto-resync mode is selected (RCR.1=0). Resync will also occur when
loss of carrier is detected (RCL=1). When RCR.1=1, RLOS remains low until resync occurs,
regardless of OOF or carrier loss flags. In this situation, resync is initiated only when RCR.0
transitions low-to-high or the RST pin transitions high-low-high.
HARDWARE MODE
For preliminary system prototyping or applications which do not require the features offered by the serial
port, the transceiver can be reconfigured by the SPS pin. Tying SPS to VSS disables the serial port, clears
all internal registers except CCR and TCR and redefines pins 14 through 18 as mode control inputs. The
hardware mode allows device retrofit into existing applications where mode control and alarm
conditioning hardware is often designed with discrete logic.
HARDWARE COMMON CONTROL
In the hardware mode bits TCR.2, CCR.4, TCR.0, CCR.1 and CCR.2 map to pins 14 through 18. The
loop-back feature (bit CCR.0) is enabled by tying pins 17 (zero suppression) and 18 (B8ZS) to 1. (The
last states of pins 17 and 18 are latched as when both pins are taken high, preserving the current zero
suppression mode). Robbed bit signaling (bit TCR.4) is enabled for all channels. The user may tie TSER
to TABCD externally to disable signaling if so desired. Bit CCR.3 is forced to 0 which selects bit 2
yellow alarm in 193S framing. Contents of the RCR, as well as the remaining bit locations in the CCR
and TCR are cleared in the hardware mode. The RST input may be used to force immediate receiver
resync and has no effect on transmit.
HARDWARE MODE Table 6
PIN
NUMBER
REGISTER BIT
LOCATION
NAME AND DESCRIPTION
14 (16)
TCR-D2
193S – S-bit insertion
3
1 = external; 0 = internal
15 (17)
CCR-D4
Framing Mode Select.
1 = 193E; 0 = 193S
16 (18)
TCR-D0
Transmit Yellow Alarm
2 ,3
1 = enabled; 0 = disabled
17 (19)
CCR-D1
Zero Suppression
1
1 = bit 7 stuffing
0 = transparent
18 (20)
CCR-D2
B8ZS
1
1 = enabled; 0 = disabled
NOTES
1. Tying pins 17 and 18 high enables loopback in the hardware mode.
2. Bit 2 (193S) and data link (193E) yellow alarms are supported.
3. S-bit yellow alarm (193S) is not internally supported; however, the user may elect to insert external S
bits for alarm purposes.
4. Pin numbers for PLCC package are listed in parenthesis.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2180IND | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| DS2180Q | 制造商:未知厂家 制造商全称:未知厂家 功能描述:PCM Transceiver |
| DS2180QIND | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| DS2181A | 功能描述:网络控制器与处理器 IC CEPT Primary Rate Transceiver 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 |
| DS2181A+ | 功能描述:网络控制器与处理器 IC CEPT Primary Rate Transceiver 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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