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Part Number: MAX1740
Description: The MAX1740/MAX1741 subscriber identity module (SIM)/smart card level translators provide level shifti...
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MAX1740
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DataSheet
General Description
MAX1740 General Description
The MAX1740/MAX1741 subscriber identity module (SIM)/smart card level translators provide level shifting and electrostatic discharge (ESD) protection for SIM and smart card ports. These devices integrate two unidirectional level shifters for the reset and clock signals, a bidirectional level shifter for the serial data stream, and ±10kV ESD protection on all card contacts.
The MAX1740 includes a SHDN control input to aid insertion and removal of SIM and smart cards, while the MAX1741 includes a system-side data driver to support system controllers without open-drain outputs. The logic supply voltage range is +1.425V to +5.5V for the "controller side" and +2.25V to +5.5V for the "card side." Total supply current is 2.5µA max. Both devices automatically shut down when either power supply is removed. For a complete SIM-card interface, combine the MAX1740/MAX1741 with the MAX1686H 0V/3V/5V regulated charge pump.
The MAX1740/MAX1741 are available in ultra-small 10- pin µMAX packages that are only 1.09mm high and half the area of an 8-pin SO.
The MAX1740/MAX1741 are compliant with GSM test specifications 11.11 and 11.12.
MAX1740 Maximum Ratings
DVCC, VCC to GND................................................-0.3V to +6.0V
RIN, CIN, DATA, DDRV,
SHDN to GND .......................................-0.3V to (DVCC + 0.3V)
RST, CLK, IO to GND ..................................-0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW
Operating Temperature Range ..........................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) ................................+300°C
RIN, CIN, DATA, DDRV,
SHDN to GND .......................................-0.3V to (DVCC + 0.3V)
RST, CLK, IO to GND ..................................-0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW
Operating Temperature Range ..........................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) ................................+300°C
MAX1740 Features
SIM/Smart Card Level Shifting
±10kV ESD Card Socket Protection
Allows Level Translation with DVCC VCC or DVCC VCC
Automatically Shuts Down When Either Supply Is Removed
Card Contacts Actively Pulled Low During Shutdown
+1.425V to +5.5V Controller Voltage Range
+2.25V to +5.5V Card Voltage Range
2.5µA (max) Total Quiescent Supply Current
0.01µA Total Shutdown Supply Current
Ultra-Small 10-Pin µMAX Package
Compliant with GSM Test Specifications 11.11 and 11.12
±10kV ESD Card Socket Protection
Allows Level Translation with DVCC VCC or DVCC VCC
Automatically Shuts Down When Either Supply Is Removed
Card Contacts Actively Pulled Low During Shutdown
+1.425V to +5.5V Controller Voltage Range
+2.25V to +5.5V Card Voltage Range
2.5µA (max) Total Quiescent Supply Current
0.01µA Total Shutdown Supply Current
Ultra-Small 10-Pin µMAX Package
Compliant with GSM Test Specifications 11.11 and 11.12
MAX1740 Typical Application
SIM Interface in GSM Cellular Telephones
Smart Card Readers
Logic Level Translation
SPI™/QSPI™/MICROWIRE™ Level Translation
Smart Card Readers
Logic Level Translation
SPI™/QSPI™/MICROWIRE™ Level Translation
MAX1740 Connection Diagram
MAX1740
PDF/DataSheet Download
- Datasheet: MAX1740
- File Size: 340986 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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