MAX3243CPWR UART Interface IC RS-232 Interface IC RS232
1 Features
Single-Chip and Single-Supply Interface
for IBMTM PC/ATTM Serial Port
RS-232 Bus-Pin ESD Protection of
±15 kV Using Human-Body Model (HBM)
Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU V.28 Standards
Three Drivers and Five Receivers
Operates Up To 250 kbit/s
Low Active Current: 300 μA Typical
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)
Operating Temperature
– MAX3243C: 0°C to 70°C
– MAX3243I: –40°C to 85°C
Serial-Mouse Driveability
Auto-Powerdown Feature to Disable Driver Outputs When No Valid RS-232 Signal Is Sensed
2 Applications
• Battery-Powered Systems • Tablets
• Notebooks
• Laptops
• Hand-Held Equipment
3 Description
The MAX3243 device consists of three line drivers, five line receivers which is ideal for DE-9 DTE interface. ±15-kV ESD (HBM) protection pin to pin (serial- port connection pins, including GND). Flexible power features saves power automatically. Special outputs ROUT2B and INVALID are always enabled to allow checking for ring indicator and valid RS232 input.
Device Information
PART NUMBER |
PACKAGE (PIN) |
BODY SIZE |
MAX3243 |
SSOP (28) |
10.29 mm × 5.30 mm |
SOIC (28) |
17.90 mm × 7.50 mm |
|
TSSOP (28) |
9.70 mm × 4.40 mm |