MAX3320B MAXIM [Maxim Integrated Products], MAX3320B Datasheet
MAX3320B
Available stocks
Related parts for MAX3320B
MAX3320B Summary of contents
Page 1
Rev 0; 8/ 5.5V 250kbps True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset _______________General Description The MAX3320 combines a microprocessor (µP) super- visory circuit with an RS-232 transceiver. The power-on reset performs a ...
Page 2
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset ABSOLUTE MAXIMUM RATINGS V .............................................................................-0. (Note 1) .................................................................-0. (Note 1)...................................................................0. ...
Page 3
... RESET Output Voltage I SINK I SINK _______________________________________________________________________________________ = +25°C.) A CONDITIONS = -1mA ) GND ±2V T_OUT or GND CC = ±12V 5.5V, transmitters disabled CC = 1.2mA reset threshold, MAX3320B 3.2mA reset threshold, MAX3320A 50µA, V > 1V, MAX3320_C CC = 100µA, V > 1.2V, MAX3320_E MIN MAX MIN TYP MAX UNITS ...
Page 4
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset TIMING CHARACTERISTICS ( 5.5V, C1–C4 = 0.1µF, C1–C4 = 0.1µF (for 3.3V ±10%), C1 = 0.047µF, C2–C4 = 0.33µF (tested at ...
Page 5
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset ____________________________Typical Operating Characteristics (continued 3.3V, 250kbps data rate, C1–C4 = 0.1µF, all transmitters loaded with 3k . Typical values are at T ...
Page 6
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset Table 1. MAX3320 Output Control Truth Table FORCEOFF FORCEON Don’t Care * Time since ...
Page 7
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset reducing supply current to 4µA. This occurs if the RS-232 cable is disconnected or the connected peripheral trans- mitters turn off. The system turns ...
Page 8
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset * ** RECEIVER INPUTS VOLTAGE TRANSMITTER INPUTS VOLTAGE TRANSMITTER OUTPUTS VOLTAGE V INVALID CC OUTPUT 0 I NVL ...
Page 9
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset V CC MAX3320 V CC GND RESET Figure 4. Ensuring RESET Valid When using the minimum required capacitor values, make sure ...
Page 10
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset T1IN T1OUT R1IN R1OUT 2 s/div 1000pF LOAD Figure 7. Loop-Back Test ...
Page 11
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset ___________________________________________________Typical Operating Circuit +3. SYSTEM *C3 MAY BE RETURNED TO EITHER V CC ______________________________________________________________________________________ 0.1 F C1+ C1 0.1 ...
Page 12
True RS-232 Transceiver with 4µA AutoShutdown Plus and Power-On Reset ________________________________________________________Package Information Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses ...