參數資料
| 型號： | LTC1484IS8#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數： | 1/16頁 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 LOWPWR 8-SOIC |
| 標準包裝： | 2,500 |
| 類型： | 收發器 |
| 驅動器/接收器數： | 1/1 |
| 規程： | RS422，RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
1
LTC1484
Low Power
RS485 Transceiver
with Receiver Fail-Safe
s
No Damage or Latchup to
±15kV ESD (Human
Body Model), IEC-1000-4-2 Level 4 Contact (
±8kV)
and Level 3 (
±8kV) Air Gap Specifications
s
Guaranteed High Receiver Output State for Floating,
Shorted or Terminated Inputs with No Signal
Present
s
Drives Low Cost Residential Telephone Wires
s
Low Power: ICC = 700A Max with Driver Disabled
s
ICC = 900A Max for Driver Enable with No Load
s
20
A Max Quiescent Current in Shutdown Mode
s
Single 5V Supply
s
– 7V to 12V Common Mode Range Permits
±7V
Ground Difference Between Devices on the Data Line
s
Power Up/Down Glitch-Free Driver Outputs
s
Up to 32 Transceivers on the Bus
s
Pin Compatible with the LTC485
s
Available in 8-Lead MSOP, PDIP and SO Packages
The LTC
1484 is a low power RS485 compatible trans-
ceiver. In receiver mode, it offers a fail-safe feature which
guarantees a high receiver output state when the inputs
are left open, shorted together or terminated with no
signal present. No external components are required to
ensure the high receiver output state.
Both driver and receiver feature three-state outputs with
separate receiver and driver control pins. The driver
outputs maintain high impedance over the entire com-
mon mode range when three-stated. Excessive power
dissipation caused by bus contention or faults is pre-
vented by a thermal shutdown circuit that forces the
driver outputs into a high impedance state.
Enhanced ESD protection allows the LTC1484 to with-
stand
±15kV (human body model), IEC-1000-4-2 level 4
(
±8kV) contact and level 3 (±8kV) air discharge ESD
without latchup or damage.
The LTC1484 is fully specified over the commercial and
industrial temperature ranges and is available in 8-lead
MSOP, PDIP and SO packages.
s
Battery-Powered RS485/RS422 Applications
s
Low Power RS485/RS422 Transceiver
s
Level Translator
, LTC and LT are registered trademarks of Linear Technology Corporation.
RO1
RE1
DE1
DI1
R
VCC1
LTC1484
GND1
B1
A1
B2
A2
120
120
D
VCC2
GND2
1484 TA01
R
D
RO2
RE2
DE2
DI2
LTC1484
RS485 Interface
APPLICATIO S
U
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
Driving a 2000 Foot STP Cable
Dl1
↑↓
DE1 = VCC
1484 TA01a
Dl2 = 0
DE2 = 0
RE1 = RE2 = 0
Dl1
B2
A2
RO2
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| LTC1485CN8PBF | 制造商:Linear Technology 功能描述:RS485 differential transceiverLTC1487CN8 |
| LTC1485CS8 | 功能描述:IC TXRX DIFFERNTIAL BUS 8-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:121 系列:- 類型:收發器 驅動器/接收器數:1/1 規程:RS422，RS485 電源電壓:3 V ~ 3.6 V 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應商設備封裝:10-DFN（3x3） 包裝:管件 |
| LTC1485CS8#PBF | 功能描述:IC TXRX DIFFERNTIAL BUS 8-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 產品培訓模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發器 驅動器/接收器數:1/1 規程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
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