SLLS350P
April 1999 – October 2022
MAX3243
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics –– Auto Power Down
6.6
Electrical Characteristics –– Driver
6.7
Electrical Characteristics –– Receiver
6.8
Switching Characteristics –– Auto Power Down
6.9
Switching Characteristics –– Driver
6.10
Switching Characteristics –– Receiver
6.11
Typical Characteristics
7
Parameter Measurement Information
7.1
19
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Auto-Power-Down
8.3.2
Charge Pump
8.3.3
RS232 Driver
8.3.4
RS232 Receiver
8.3.5
ROUT2B Receiver
8.3.6
Invalid Input Detection
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Receiving Notification of Documentation Updates
10.2
Support Resources
10.3
Trademarks
10.4
Electrostatic Discharge Caution
10.5
Glossary
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DW|28
MPDS175A
DB|28
MPDS510A
PW|28
MPDS364
Thermal pad, mechanical data (Package|Pins)
DW|28
QFND317C
PW|28
QFND466A
Orderable Information
slls350p_oa
slls350p_pm
1
Features
Operates With 3-V to 5.5-V V
CC
Supply
Single-Chip and Single-Supply Interface
for
IBM™
PC/AT™
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