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參數資料
| 型號： | ST490AB |
| 英文描述： | MAX II CPLD 1270 LE 144-TQFP |
| 中文描述： | 低耗能，高轉速RS-485/RS422收發器 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 203K |
| 代理商： | ST490AB |
1/11
November 2002
s
LOW SUPPLY CURRENT: 5mA MAX
s
-7 TO 12 COMMON MODE INPUT VOLTAGE
RANGE
s
70mV TYPICAL INPUT HYSTERESIS
s
DESIGNED FOR 25Mbps OPERATION
s
OPERATE FROM SINGLE 5 SUPPLY
s
±4kV ESD PROTECTION
s
CURRENT LIMITING AND THERMAL
SHUTDOWN FOR DRIVER OVERLOAD
PROTECTION
DESCRIPTION
The ST490A is a low power transceiver for
RS-485 and RS-422 communications. The device
contains one driver and one receiver in full duplex
configuration. The ST490A draws 5mA (typ.) of
supply current when unloaded or fully loaded with
disabled drivers. It operates from a single 5V
supply.
Driver is short-circuit current limited and is
protected against excessive power dissipation by
thermal shutdown circuitry that place the driver
outputs into a high-impedance state. The receiver
input has a fail-safe feature that guarantees a
logic high output if both inputs are open circuit.
ORDERING CODES
Type
Temperature
Range
Package
Comments
ST490ACN
0 to 70 °C
DIP-8
50parts per tube / 40tube per box
ST490ABN
-40 to 85 °C
DIP-8
50parts per tube / 40tube per box
ST490ACD
0 to 70 °C
SO-8 (Tube)
100parts per tube / 20tube per box
ST490ABD
-40 to 85 °C
SO-8 (Tube)
100parts per tube / 20tube per box
ST490ACDR
0 to 70 °C
SO-8 (Tape & Reel)
2500 parts per reel
ST490ABDR
-40 to 85 °C
SO-8 (Tape & Reel)
2500 parts per reel
ST490A
LOW POWER HIGH SPEED RS-485/RS-422 TRANSCEIVER
DIP
SOP
相關PDF資料 |
PDF描述 |
|---|---|
| ST490AC | MAX II CPLD 2210 LE 324-FBGA |
| ST49C101A-01 | MAX II CPLD 2210 LE 256-FBGA |
| ST49C101A-03 | MAX II CPLD 570 LE 256-FBGA |
| ST49C101A-05 | MAX II CPLD 2210 LE 324-FBGA |
| ST49C101A-06 | MAX II CPLD 2210 LE 324-FBGA |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ST490ABD | 功能描述:緩沖器和線路驅動器 Hi-Spd Lo Pwr Trans RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| ST490ABDR | 功能描述:緩沖器和線路驅動器 Hi-Spd Lo Pwr Trans RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| ST490ABN | 功能描述:緩沖器和線路驅動器 Hi-Spd Lo Pwr Trans RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| ST490AC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW POWER HIGH SPEED RS-485/RS422 TRANSCEIVER |
| ST490ACD | 功能描述:緩沖器和線路驅動器 Hi-Spd Lo Pwr Trans RoHS:否 制造商:Micrel 輸入線路數量:1 輸出線路數量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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