SLLS694C November   2005  – July 2021 SN65C3221E , SN75C3221E

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  ESD Ratings - IEC Specifications
    4. 7.4  Recommended Operating Conditions
    5. 7.5  Thermal Information
    6. 7.6  Electrical Characteristics
    7. 7.7  Driver Section: Electrical Characteristics
    8. 7.8  Switching Characteristics: Driver
    9. 7.9  Receiver Section: Electrical Characteristics
    10. 7.10 Switching Characteristics: Receiver
    11. 7.11 Auto-powerdown Section: Electrical Characteristics
    12. 7.12 Switching Characteristics: Auto-powerdown
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6 Pin Configuration and Functions

GUID-20210630-CA0I-SLLM-B6FP-M0D2PSLLG37R-low.pngFigure 6-1 DB or PW Package
Top View
Table 6-1 Pin Configurations
PINDESCRIPTION
NAMENOI/O
EN1I Low input enables receiver ROUT output. High input sets ROUT to high impedance.
C1+ 2 — Positive terminals of the voltage-doubler charge-pump capacitors
V+ 3 O 5.5-V supply generated by the charge pump
C1– 4 — Negative terminals of the voltage-doubler charge-pump capacitors
C2+5 —Positive terminals of the voltage-doubler charge-pump capacitors
C2– 6 — Negative terminals of the voltage-doubler charge-pump capacitors
V– 7 O –5.5-V supply generated by the charge pump
RIN 8 I RS-232 receiver input
ROUT 9 O Receiver output
INVALID 10 O Invalid output pin. Output low when all RIN inputs are unpowered.
DIN11IDriver input
FORCEON 12 I Automatic power-down control input
DOUT13ORS-232 driver output
GND 14 — Ground
VCC 15 — 3-V to 5.5-V supply voltage
FORCEOFF16IAutomatic power-down control input