參數(shù)資料
型號(hào)： DS26303GN-75
廠商： Maxim Integrated Products, Inc.
英文描述： 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
中文描述： 3.3，E1/T1/J1，短途，八線路接口單元
文件頁(yè)數(shù)： 14/97頁(yè)
文件大?。?/td> 966K
代理商： DS26303GN-75
DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
14 of 97
PIN
NAME
eLQFP
PBGA
TYPE
FUNCTION
RLOS8/
scan_en
140
E4
I/O
Loss-of-Signal Output/Scan Enable
RLOS8:
See RLOS1 pin description.
scan_en:
Enables scan during test when pin scan_mode is high.
CLKA
93
G13
O,
tri-state
Clock A.
This output becomes a programmable clock output when
enabled by register
MC
. For frequency options see register
CCR
.
This option is not available in hardware mode. If this option is not
used, the pin should be left unconnected.
scan_mode
94
H13
I
(pulled
to V
SS
)
HARDWARE AND PORT OPERATION
Mode Selection.
This pin is used to select the control mode of the
DS26303.
Scan Mode.
Selects scan mode when high. If not used, this pin
should be left unconnected or grounded.
MODESEL
11
E2
I
(pulled
to
V
DD
/2)
Low
→
Hardware Mode
V
DD
/2
→
Serial Host Mode
High
→
Parallel Host Mode
Note: When left unconnected, do not route signals with fast
transitions near MODESEL. This practice minimizes capacitive
coupling.
Multiplexed/Nonmultiplexed Select Pin/
Transmit Impedance/Receive Impedance Match
MUX/
TIMPRM
43
K2
I
MUX:
In host mode with a parallel port, this pin is used to select
multiplexed address and data operation or separate address and
data. When mux is a high, multiplexed address and data is used.
TIMPRM:
In hardware mode, this pin selects the internal transmit
termination impedance and receive impedance match for E1 mode
and T1/J1 mode.
0
→
75 for E1 mode or 100 for T1 mode
1
→
120 for E1 mode or 110 for J1 mode
Note: If the part number ends with 120, the default is 120 when
low and 75 when high for El mode only.
Motorola Intel Select/Code
MOTEL/
CODE
88
H12
I
MOTEL:
When in parallel host mode, this pin selects Motorola
mode when low and Intel mode when high.
CODE:
In hardware mode, AMI encoding/decoding is selected
when the pin is high for all the LIUs. When the pin is low, B8ZS is
selected for T1 mode and HDB3 for E1 mode for all the LIUs.
相關(guān)PDF資料
PDF描述
DS26303L-120 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26303L-75 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26303LN-120 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26303LN-75 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
DS26518 8-Port T1/E1/J1 Transceiver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS26303L-120 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303L-120+ 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303L-120+A3 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303L-120A3 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
DS26303L-75 功能描述:電信線路管理 IC 3.3V E1/T1/J1 Short Haul Octal LIU RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
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