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參數(shù)資料
| 型號： | DS26334GNA3+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 118/121頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC LIU E1/T1/J1 3.3V 256-CSBGA |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 類型： | 線路接口裝置（LIU） |
| 驅(qū)動器/接收器數(shù)： | 16/16 |
| 規(guī)程： | IEEE 1149.1 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 256-LBGA，CSBGA |
| 供應(yīng)商設(shè)備封裝： | 256-CSBGA（17x17） |
| 包裝： | 托盤 |
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DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
96 of 121
7.2
Instruction Register
The instruction register contains a shift register as well as a latched parallel output and is 3 bits in length. When the
TAP controller enters the Shift-IR state, the instruction shift register will be connected between TDI and TDO. While
in the Shift-IR state, a rising edge on TCLK with TMS LOW will shift the data one stage towards the serial output at
TDO. A rising edge on TCLK in the Exit1-IR state or the Exit2-IR state with TMS HIGH will move the controller to
the Update-IR state. The falling edge of that same TCLK will latch the data in the instruction shift register to the
instruction parallel output. Instructions supported by the DS26334 and its respective operational binary codes are
shown in Table 7-1.
Table 7-1. Instruction Codes for IEEE 1149.1 Architecture
INSTRUCTION
SELECTED REGISTER
INSTRUCTION CODES
EXTEST
Boundary Scan
000
HIGHZ
Bypass
010
CLAMP
Bypass
011
SAMPLE/PRELOAD
Boundary Scan
100
IDCODE
Device Identification
110
BYPASS
Bypass
111
7.2.1
EXTEST
This allows testing of all interconnections to the device. When the EXTEST instruction is latched in the instruction
register, the following actions occur. Once enabled via the Update-IR state, the parallel outputs of all digital output
pins will be driven. The Boundary Scan Register will be connected between TDI and TDO. The Capture-DR will
sample all digital inputs into the Boundary Scan Register.
7.2.2
HIGHZ
All digital outputs of the device will be placed in a high-impedance state. The Bypass Register will be connected
between TDI and TDO.
7.2.3
CLAMP
All digital outputs of the device will output data from the boundary scan parallel output while connecting the Bypass
Register between TDI and TDO. The outputs will not change during the CLAMP instruction.
7.2.4
SAMPLE/PRELOAD
This is a mandatory instruction for the IEEE 1149.1 specification that supports two functions. The digital I/Os of the
device can be sampled at the Boundary Scan Register without interfering with the normal operation of the device
by using the Capture-DR state. SAMPLE/PRELOAD also allows the device to shift data into the Boundary Scan
Register via TDI using the Shift-DR state.
7.2.5
IDCODE
When the IDCODE instruction is latched into the Parallel Instruction Register, the Identification Test Register is
selected. The device identification code will be loaded into the Identification Register on the rising edge of TCLK
following entry into the Capture-DR state. Shift-DR can be used to shift the identification code out serially via TDO.
During Test-Logic-Reset, the identification code is forced into the Instruction Register’s parallel output. The ID code
will always have a 1 in the LSB position. The next 11 bits identify the manufacturer’s JEDEC number and number
of continuation bytes followed by 16 bits for the device and 4 bits for the version Table 7-2. Table 7-3 lists the
device ID code for the DS26334.
7.2.6
BYPASS
When the BYPASS instruction is latched into the Parallel Instruction Register, TDI connects to TDO through the
one-bit test Bypass Register. This allows data to pass from TDI to TDO not affecting the device’s normal operation.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS26334GNA3+ | 功能描述:電信集成電路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 類型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray |
| DS26334N | 制造商:Maxim Integrated Products 功能描述:DS26334 X16 T1E1J1 LIU L-HAUL IND - Rail/Tube |
| DS26401 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Octal T1/E1/J1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS26401+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Octal T1/E1/J1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS26401A2 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Octal T1/E1/J1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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