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SN75C3243的基本参数
  • 制造厂商:TI
  • 产品类别:接口
  • 技术类目:RS-232 收发器
  • 功能描述:具有 +/-15kV ESD 保护的 3V 至 5.5V 多通道 1Mbps RS-232 线路驱动器/接收器
  • 点击这里打开及下载SN75C3243的技术文档资料
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SN75C3243的产品详情:

The SN65C3243 and SN75C3243 consist of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). This device provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, this device includes an always-active noninverting output (ROUT2B), which allows applications using the ring indicator to transmit data while the device is powered down. The device operates at data signaling rates up to 1 Mbit/s and an increased slew-rate range of 24 V/µs to 150 V/µs.

Flexible control options for power management are available when the serial port is inactive. The auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF is set low, both drivers and receivers (except ROUT2B) are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur.

Auto-powerdown can be disabled when FORCEON and FORCEOFF are high and should be done when driving a serial mouse. With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to any receiver input. The INVALID output is used to notify the user if an RS-232 signal is present at any receiver input. INVALID is high (valid data) if any receiver input voltage is greater than 2.7 V or less than –2.7 V or has been between –0.3 V and 0.3 V for less than 30 µs. INVALID is low (invalid data) if all receiver input voltages are between –0.3 V and 0.3 V for more than 30 µs. Refer to Figure 5 for receiver input levels.

SN75C3243的优势和特性:
  • Operates With 3-V to 5.5-V VCC Supply
  • Always-Active Noninverting Receiver Output (ROUT2B)
  • Low Standby Current . . . 1 μA Typ
  • External Capacitors . . . 4 × 0.1 μF
  • Accepts 5-V Logic Input With 3.3-V Supply
  • Inter-Operable With SN65C3238, SN75C3238
  • Supports Operation From 250 kbit/s to 1 Mbit/s
  • RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • APPLICATIONS
    • Battery-Powered Systems
    • PDAs
    • Notebooks
    • Laptops
    • Palmtop PCs
    • Hand-Held Equipment

SN75C3243的参数(英文):
  • Drivers per package
  • 3
  • Receivers per package
  • 5
  • Logic voltage (Min) (V)
  • 3.3
  • Data rate (Max) (kbps)
  • 1000
  • Main supply voltage (Nom) (V)
  • 3.3, 5
  • Features
  • Auto-Powerdown
  • ESD HBM (kV)
  • 15
  • Rating
  • Catalog
  • Operating temperature range (C)
  • 0 to 70
  • Vout (Typ) (V)
  • 5.4
SN75C3243具体的完整产品型号参数及价格(美元):

SN75C3243的完整型号有:SN75C3243DBR、SN75C3243DW、SN75C3243DWR、SN75C3243PW、SN75C3243PWR,以下是这些产品的关键参数及官网采购报价:

SN75C3243DBR,工作温度:0 to 70,封装:SSOP (DB)-28,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN75C3243DBR的批量USD价格:.92(1000+)

SN75C3243DW,工作温度:0 to 70,封装:SOIC (DW)-28,包装数量MPQ:20个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN75C3243DW的批量USD价格:1.104(1000+)

SN75C3243DWR,工作温度:0 to 70,封装:SOIC (DW)-28,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN75C3243DWR的批量USD价格:.92(1000+)

SN75C3243PW,工作温度:0 to 70,封装:TSSOP (PW)-28,包装数量MPQ:50个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN75C3243PW的批量USD价格:1.104(1000+)

SN75C3243PWR,工作温度:0 to 70,封装:TSSOP (PW)-28,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:NIPDAU,TI官网SN75C3243PWR的批量USD价格:.92(1000+)

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