MAX232CPE Datasheet – RS-232 Drivers / Receivers – Maxim

This IC is dual driver/receiver.

Part Number : MAX232CPE

Function : +5V-Powered, Multichannel RS-232 Drivers/Receiver

Package : 16 Pin DIP Type

Manufacturers : Maxim Integrated

Image

max232cpe-rs-232-driver-receiver-maxim

 

Description :

The MAX220 Thru MAX249 family of line drivers/receivers is intended for all EIA/TIA-232E and V.28/V.24 communications interfaces, particularly applications where ±12V is not available.

These parts are especially useful in battery-powered systems, since their low-power shutdown mode reduces power dissipation to less than 5µW. The MAX225, MAX233, MAX235, and MAX245/MAX246/MAX247 use no external components and are recommended for applications where printed circuit board space is critical.

The MAX220-MAX249 are offered in 26 different packages with temperatures from 0 to +70°C up to -55°C to +125°C. See ordering information table at the end of the data sheet for all package and temperature options.
max232 Datasheet Selection Table

Applications/Uses

1. Battery-Powered RS-232 Systems
2. Interface Translation
3. Low-Power Modems
4. Multidrop RS-232 Networks
6. Portable Computing

MAX232CPE Drivers

The typical driver output voltage swing is ±8V when loaded with a nominal 5kΩRS-232 receiver and VCC= +5V. Output swing is guaranteed to meet the EIA/TIA-232E and V.28 specification, which calls for ±5V minimum driver output levels under worst-case conditions. These include a minimum 3kΩload, VCC= +4.5V, and maximum operating temperature. Unloaded driver output voltage ranges from (V+ -1.3V) to (V- +0.5V).

 

Pinout

max232cpe-datasheet-pinout

 

MAX232CPE Receivers

EIA/TIA-232E and V.28 specifications define a voltage level greater than 3V as a logic 0, so all receivers invert. Input thresholds are set at 0.8V and 2.4V, so receivers respond to TTL level inputs as well as EIA/TIA-232E and V.28 levels. The receiver inputs withstand an input overvoltage up to ±25V and provide input terminating resistors with nominal 5kΩ values. The receivers implement Type 1 interpretation of the fault conditions of V.28 and EIA/TIA-232E.

Reference Site : [ Wikipedia MAX232 Info ]

MAX232CPE Datasheet PDF

MAX232 pdf

 

Other data sheets within the file : MAX220 Thru MAX249, MAX222C-D, MAX223C-D

MAX3222 Datasheet PDF – RS-232 Line Driver and Receiver

Part Number : MAX3222

Function : 3-V To 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

Package : SOIC, SSOP, TSSOP, DIP 20 Pin

Manufacturers : Texas Instruments

Pinouts :

MAX3222 datasheet

Description :

The MAX3222 consists of two line drivers, two line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. The device operates at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.

Features

1. RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)
2. Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards
3. Operates With 3-V to 5.5-V VCCSupply
4. Operates Up To 250 kbit/s
5. Two Drivers and Two Receivers
6. Low Standby Current…1 µA Typical
7. External Capacitors…4 ×0.1 µF
8. Accepts 5-V Logic Input With 3.3-V Supply
9. Alternative High-Speed Pin-Compatible Device (1 Mbit/s) − SNx5C3222

Applications

1. Battery-Powered Systems, PDAs,
2. Notebooks, Laptops, Palmtop PCs, and
3. Hand-Held Equipment

MAX3222 Datasheet PDF Download

MAX3222 pdf

Other data sheets within the file : MA3222C, MAX3222C, MAX3222CDB, MAX3222CDBR