首页 > TI 德州仪器 > 接口 > RS-232

MAX3243 具有 +/-15kV ESD (HBM) 保护的 3V 至 5.5V 多通道 RS-232 线路驱动器/接收器

The MAX3243 device consists of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD (HBM) protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. This combination of drivers and receivers matches that needed for the typical serial port used in an IBM PC/AT, or compatible. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, the device includes an always-active noninverting output (ROUT2B), which allows applications using the ring indicator to transmit data while the device is powered down.

	MAX3243
Data Rate(kbps)	250
Drivers Per Package	3
Receivers Per Package	5
ESD HBM(kV)	+/-15
Supply Voltage(s)(V)	3.3 or 5.0
ICC(Max)(mA)	1
Operating Temperature Range(°C)	-40 to 85,0 to 70
Pin/Package	28SOIC, 28SSOP, 28TSSOP
Approx. Price (US$)	0.90 | 1ku
Rating	Catalog
Footprint	MAX3243

MAX3243 特性

• Single-Chip and Single-Supply Interface for IBM™ PC/AT™ Serial Port
• RS-232 Bus-Pin ESD Protection Exceeds ±15-kV Using Human-Body Model (HBM)
• Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards
• Operates With 3-V to 5.5-V VCC Supply
• Three Drivers and Five Receivers
• Operates up to 250 kbit/s
• Designed to Transmit at a Data Rate of 250 kbit/s
• Low Standby Current ...1 µA Typical
• External Capacitors ...4 × 0.1 µF
• Accepts 5-V Logic Input With 3.3-V Supply
• Always-Active Noninverting Receiver Output (ROUT2B)
• Designed to Be Interchangeable With Maxim MAX3243
• Alternative High-Speed Pin-Compatible Device (1 Mbit/s)
  • SNx5C3243
• Serial-Mouse Driveability
• Auto-Powerdown Feature to Disable Driver Outputs When No Valid RS-232 Signal Is Sensed
• Applications
  • Battery-Powered Systems, PDAs, Notebooks, Laptops, Palmtop PCs, and Hand-Held Equipment

MAX3243 芯片订购指南

器件	状态	温度	价格	封装 | 引脚	封装数量 | 封装载体	丝印标记
MAX3243CPW	ACTIVE	0 to 70	1.15 | 1ku	TSSOP (PW) | 28	90 | TUBE
MAX3243CPWE4	ACTIVE	0 to 70	1.15 | 1ku	TSSOP (PW) | 28	90 | TUBE
MAX3243CPWG4	ACTIVE	0 to 70	1.15 | 1ku	TSSOP (PW) | 28	90 | TUBE
MAX3243CPWR	ACTIVE	0 to 70	1.00 | 1ku	TSSOP (PW) | 28	2000 | LARGE T&R
MAX3243CPWRE4	ACTIVE	0 to 70	1.00 | 1ku	TSSOP (PW) | 28	2000 | LARGE T&R
MAX3243CPWRG4	ACTIVE	0 to 70	1.00 | 1ku	TSSOP (PW) | 28	2000 | LARGE T&R

MAX3243 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
MAX3243CPW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	MAX3243CPW	MAX3243CPW
MAX3243CPWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	MAX3243CPWE4	MAX3243CPWE4
MAX3243CPWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	MAX3243CPWG4	MAX3243CPWG4
MAX3243CPWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	MAX3243CPWR	MAX3243CPWR
MAX3243CPWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	MAX3243CPWRE4	MAX3243CPWRE4
MAX3243CPWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	MAX3243CPWRG4	MAX3243CPWRG4

MAX3243 应用技术支持与电子电路设计开发资源下载

1. MAX3243 数据资料 dataSheet 下载.PDF
2. TI 德州仪器RS-232 产品选型与价格 . xls
3. Analog Signal Chain Guide (8.62 MB)
4. Industrial Interface IC Solutions (101 KB)