ST485BD Low power RS-485/RS-422 transceiver ic pc board circuit board ic
integrated circuit ic
,integrated circuit components
LOW POWER RS-485/RS-422 TRANSCEIVER
■ LOW QUIESCENT CURRENT: 300µA
■ DESIGNED FOR RS-485 INTERFACE APPLICATIONS
■ -7V TO 12V COMMON MODE INPUT VOLTAGE RANGE
■ DRIVER MAINTAINS HIGH IMPEDANCE IN 3-STATE OR WITH THE POWER OFF
■ 70mV TYPICAL INPUT HYSTERESIS
■ 30ns PROPAGATION DELAYS, 5ns SKEW
■ OPERATE FROM A SINGLE 5V SUPPLY
■ CURRENT LIMITING AND THERMAL SHUTDOWN FOR DRIVER OVERLOAD PROTECTION
■ ALLOWS UP TO 64 TRANSCEIVERS ON THE BUS
DESCRIPTION
The ST485 is al low power transceiver for RS-485 and RS-422 communication. Each part contains one driver and one receiver.
This transceiver draw 300µA (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 placed the driver outputs into a high-impedance state. . The ST485 is designed for bi-directional data communications on multipoint bus transmission line (half-duplex applciations).
ORDERING CODES
| Type | Temperature Range | Package | Comments |
| ST485CN | 0 to 70 °C | DIP-8 | 50parts per tube / 40tube per box |
| ST485BN | -40 to 85 °C | DIP-8 | 50parts per tube / 40tube per box |
| ST485CD | 0 to 70 °C | SO-8 (Tube) | 100parts per tube / 20tube per box |
| ST485BD | -40 to 85 °C | SO-8 (Tube) | 100parts per tube / 20tube per box |
| ST485CDR | 0 to 70 °C | SO-8 (Tape & Reel) | 2500 parts per reel |
| ST485BDR | -40 to 85 °C | SO-8 (Tape & Reel) | 2500 parts per reel |
STOCL LIST
| MAX202IPWR | 7650 | TI | 16+ | TSSOP |
| MC14081BDR2G | 38000 | ON | 11+ | SOP |
| OPA2227PA | 6680 | TI | 12+ | DIP |
| MSP430F249TPMR | 6743 | TI | 16+ | QFP |
| PCM1789PWR | 5902 | TI | 14+ | TSSOP |
| PESD24VL1BA | 38000 | 16+ | SOD | |
| LM4040A50IDBZR | 3799 | TI | 15+ | SOT-23 |
| MAX996ESD | 8104 | MAXIM | 16+ | SOP |
| LM2675M-12 | 2000 | NSC | 14+ | SOP-8 |
| MC7808ACTG | 4156 | ON | 13+ | TO-220 |
| PE4251MLI-Z | 14220 | PEREGRINE | 13+ | MSOP |
| LM2931AT-5.0G | 2000 | ON | 14+ | TO-220 |
| PCA9555DBR | 12480 | TI | 16+ | SSOP |
| LP2992IM5-3.0 | 3238 | NSC | 15+ | SOT-23-5 |
| XC5VLX110T-1FFG1136I | 100 | XILINX | 15+ | BGA |
| LT1328CMS8#PBF | 9246 | LT | 15+ | MSOP-8 |
| PC815 | 10000 | SHARP | 16+ | DIP-4 |
| MC74LCX541DTG | 4612 | ON | 14+ | TSSOP |
| LM3424MH | 1450 | NSC | 13+ | TSSOP-20 |
| MT48LC1M16A1TG-7SE | 7261 | MICRON | 10+ | TSOP |
| MC74LCX16245DTR2 | 4068 | ON | 14+ | TSSOP |
| PMEG4050EP | 45000 | 15+ | SOD-128 | |
| MBRF1045 | 17313 | ON | 10+ | TO-220 |
| MCF5272VF66 | 3100 | FREESCALE | 10+ | BGA |
| PMEG4010EH | 16000 | 15+ | SOD-123 |
| Image | Part # | Description | |
|---|---|---|---|
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