SLLS806C
June 2007 – October 2022
TRS3243
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—Power and Status
6.6
Electrical Characteristics—Driver
6.7
Electrical Characteristics—Receiver
6.8
Switching Characteristics—Power and Status
6.9
Switching Characteristics—Driver
6.10
Switching Characteristics—Receiver
6.11
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Automatic 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 Curve
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
Support Resources
10.2
Trademarks
10.3
Electrostatic Discharge Caution
10.4
Glossary
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DB|28
MPDS510A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slls806c_oa
slls806c_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 kbps
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
TRS3243C: 0°C to 70°C
TRS3243I: –40°C to 85°C
Serial-mouse driveability
Automatic power-down feature to
disable driver outputs when
no valid RS-232 signal is sensed