MAX221E Datasheet | Maxim Integrated

19-1527; Rev 0; 8/99 ±15k V ESD-Protected, +5V, 1µA, Single RS-232 Transceiver with Auto Shutdown General Description The MAX221E is a +5V powered, single transmit/ receive RS-232 and V.28 munications interface with automatic shutdown/wake-up Features and high data rate capabilities. The MAX221E Features enhanced electrostatic discharge (ESD) protection. Both the transmitter output and receiver input are protected to ±15k V using the IEC 1000-4-2 Air Gap Discharge Method, to ±8k V using the IEC 1000-4-2 Contact Discharge Method, and to ±15k V using the Human Body Model. The MAX221E achieves a low 1µA supply current with Maxim’s revolutionary Auto Shutdown™ feature. Auto Shutdown saves power without changes to the existing BIOS or operating system by entering lowpower shutdown mode when the RS-232 cable is disconnected or when the transmitter of the connected peripheral is off. The MAX221E wakes up and drives the INVALID pin high when an active RS-232 cable is connected, signaling the host that a peripheral is connected to the munications port. The MAX221E is available in a 16-pin SSOP package as well as a 16-pin TSSOP that uses 50% less board space than a 16-pin SO. Applications Maintenance/Diagnostic Ports Industrial Systems Telemunications Set-Top Boxes Pin Configuration TOP VIEW EN 1 C1+ 2 V+ 3 C1- 4 C2+ 5 C2- 6 V- 7 RIN 8 16 FORCEOFF 15 VCC 14 GND 13 TOUT 12 FORCEON 11 TIN 10 INVALID 9 ROUT TSSOP/SSOP Auto Shutdown is a trademark of Maxim Integrated Products. Features o Single RS-232 Transceiver in a Small 16-Pin TSSOP o ESD Protection for RS-232 I/O Pins ±15k V- Human Body Model ±8k V- IEC 1000-4-2, Contact Discharge ±15k V- IEC 1000-4-2, Air-Gap Discharge o Latchup Free o 1µA Supply Current o Auto Shutdown Saves Power without Changes to BIOS o Guaranteed 250kbps Data Rate PART MAX221ECUE MAX221ECAE MAX221EEUE MAX221EEAE Ordering Information TEMP. RANGE 0°C to +70°C 0°C to +70°C 40°C to +85°C 40°C to +85°C PIN-PACKAGE 16 TSSOP 16 SSOP 16...