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參數(shù)資料
| 型號： | MAX3089ESD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485/422 10MBPS 14-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 14-SOIC |
| 包裝： | 帶卷 (TR) |
Detailed Description
The MAX3080–MAX3089 high-speed transceivers for
RS-485/RS-422 communication contain one driver and
one receiver. These devices feature fail-safe circuitry,
which guarantees a logic-high receiver output when the
receiver inputs are open or shorted, or when they are
connected to a terminated transmission line with all
drivers disabled (see Fail-Safe section). The MAX3080/
MAX3081/MAX3082 feature reduced slew-rate drivers
that minimize EMI and reduce reflections caused by
improperly terminated cables, allowing error-free data
transmission up to 115kbps (see Reduced EMI and
Reflections section). The MAX3083/MAX3084/MAX3085
offer higher driver output slew-rate limits, allowing
transmit speeds up to 500kbps. The MAX3086/
MAX3087/MAX3088’s driver slew rates are not limited,
making transmit speeds up to 10Mbps possible. The
MAX3089’s slew rate is selectable between 115kbps,
500kbps, and 10Mbps by driving a selector pin with a
three-state driver.
The MAX3082/MAX3085/MAX3088 are half-duplex
transceivers, while the MAX3080/MAX3081/MAX3083/
MAX3084/MAX3086/MAX3087 are full-duplex trans-
ceivers. The MAX3089 is selectable between half- and
full-duplex communication by driving a selector pin
high or low, respectively.
All of these parts operate from a single +5V supply.
Drivers are output short-circuit current limited. Thermal
shutdown circuitry protects drivers against excessive
power dissipation. When activated, the thermal shut-
down circuitry places the driver outputs into a high-
impedance state.
Receiver Input Filtering
The receivers of the MAX3080–MAX3085, and the
MAX3089 when operating in 115kbps or 500kbps
mode, incorporate input filtering in addition to input
hysteresis. This filtering enhances noise immunity with
differential signals that have very slow rise and fall
times. Receiver propagation delay increases by 20%
due to this filtering.
Fail-Safe, High-Speed (10Mbps),
Slew-Rate-Limited RS-485/RS-422 Transceivers
DIP/SO
TOP VIEW
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VCC
RXP
TXP
A
B
Z
Y
RO
RE
DE
DI
SRL
GND
H/F
MAX3089
RD
VCC
TXP
A
B
Z
Y
GND
DE
SRL
DI
MAX3089
H/F
RE
NOTE: SWITCH POSITIONS
INDICATED FOR H/F = GND
Figure 4. MAX3089 Pin Configuration and Functional Diagram
MAX3080–MAX3089
14
Maxim Integrated
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| MAX308C/D | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX308CPE | 功能描述:多路器開關(guān) IC 8:1 Precision RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX308CPE+ | 功能描述:多路器開關(guān) IC 8:1 Precision RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX308CPE+ | 制造商:Maxim Integrated Products 功能描述:MULTIPLEXER IC |
| MAX308CSE | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
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