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参数资料
| 型号： | DS26900LN+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/49页 |
| 文件大小： | 0K |
| 描述： | IC JTAG MUX/SWITCH 144-LQFP |
| 标准包装： | 90 |
| 系列： | * |
| 功能： | * |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 3.14 V ~ 3.47 V |
| 电流 - 电源： | * |
| 工作温度： | * |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 144-LQFP |
| 供应商设备封装： | 144-LQFP（20x20） |
| 包装： | 托盘 |
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__________________________________________________________________________________________DS26900
15
NAME
PIN
TYPE
FUNCTION
TDO2
29
I/O
Test Master 2 Test Port Serial Data Out
Master Mode = Output
Slave Mode = Input
When PREN = VDD, an internal 10k pullup resistor is connected to this pin.
TCK2
30
Ipd/O
Test Master 2 Test Port Clock
Master Mode = Input
Slave Mode = Output
When PREN = VDD, an internal 20k pulldown resistor is connected to this pin.
TRST2
31
Ipu/O
Test Master 2 Test Port Test Reset (Active Low). Asserting this pin low (when
master) puts the DS26900 into configuration mode, allowing access to the Switch
TAP Controller. Toggling
TRST2 when not the arbitrated master has no effect. This
pin does not directly affect secondary port resets.
Master Mode =
TRST2 Input
Slave Mode =
TRST2 Output
When PREN = VDD, an internal 10k pullup resistor is connected to this pin.
TMS2
32
Ipd/O
Test Master 2 Test Port Test Mode Select
Master Mode = Input
Slave Mode = Output
When PREN = VDD, an internal 20k pulldown resistor is connected to this pin.
RST
33
Ipu
Global Reset (Active Low). (Internal 10k
Pullup) A low state on this pin provides
an asynchronous reset for global registers and logic.
RST should be tied high for
normal operation.
MCI
34
O
Master Conflict Indicator (Active Low). Indicates that more than one device is
requesting to be master.
Asserted low when more than one of the
EREQ, TMREQ1, or TMREQ2 signals is
asserted low.
PTMS
35
Ipu
Periphery JTAG Chain Test Mode Select. This input must be driven to a logic level
during normal operation.
PTRST
37
I
Periphery JTAG Chain Test Reset (Active Low). During normal operation, this
signal is asserted low.
PTDO
38
O
Periphery JTAG Chain Serial Data Out
PTDI
39
I
Periphery JTAG Chain Serial Data Input. This input must be driven to a logic level
during normal operation.
PTCK
40
I
Periphery JTAG Chain Test Clock. This input must be driven to a logic level during
normal operation.
STMS10
41
O
Secondary Port 10 Test Mode Select (Internal 20k
Pulldown)
STRST10
42
O
Secondary Port 10 Test Reset (Active Low)
STCK10
43
O
Secondary Port 10 Test Clock
STDI10
44
O
Secondary Port 10 Serial Data Input
STDO10
45
Ipu
Secondary Port 10 Serial Data Out (Internal 10k
Pullup)
STMS9
46
O
Secondary Port 9 Test Mode Select (Internal 20k
Pulldown)
STRST9
47
O
Secondary Port 9 Test Reset (Active Low)
STCK9
49
O
Secondary Port 9 Test Clock
STDI9
50
O
Secondary Port 9 Serial Data Input
STDO9
51
Ipu
Secondary Port 9 Serial Data Out (Internal 10k
Pullup)
STMS8
52
O
Secondary Port 8 Test Mode Select (Internal 20k
Pulldown)
STRST8
53
O
Secondary Port 8 Test Reset (Active Low)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS26900LN+ | 功能描述:多路器开关 IC JTAG MUX RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| DS26900N+ | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:JTAG Multiplexer/Switch |
| DS26C31 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:CMOS QUAD TRI-STATE DIFFERENTIAL LINE DRIVER |
| DS26C31 DIE | 制造商:Texas Instruments 功能描述: |
| DS26C31_BBA3026X WAF | 制造商:Texas Instruments 功能描述: |
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