MAX1840
Low-Voltage SIM/Smart-Card Level Translators in µMAX
Low-Voltage, High-Speed, SIM/Smart-Card Level Translator
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Key Features
Applications/Uses
| VCC (V) (Logic) | 1.4 to 5.5 |
| VCC (V) (Card) | 1.7 to 5.5 |
| ICCQ (µA) (max) | 3.5 |
| Level Shifters | 1 Bidirectional 2 Unidirectional |
| Package/Pins | UMAX/10 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 1.8 |
Simplified Block Diagram
Technical Docs
| Data Sheet | Low-Voltage SIM/Smart-Card Level Translators in µMAX | Apr 01, 2000 | |
| User Guide | MAXREFDES42# IO-Link RTD Temp Sensor Quick Start Guide (IQ2 IO-Link Master Version) | ||
| App Note | Green LED Replaces LDO Regulator | ||
| App Note | Logic-Level Translation |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Parameters
| VCC (V) (Logic) | 1.4 to 5.5 |
| VCC (V) (Card) | 1.7 to 5.5 |
| ICCQ (µA) (max) | 3.5 |
| Level Shifters | 1 Bidirectional 2 Unidirectional |
| Package/Pins | UMAX/10 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 1.8 |
Key Features
- SIM/Smart Card Level Shifting
- +1.4V to +5.5V Controller Voltage Range
- +1.7V to +5.5V Card Voltage Range
- ±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
- 1µA 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
Applications/Uses
- Logic-Level Translation
- SIM Interface in GSM Cellular Telephones
- Smart Card Readers
- SPI™, QSPI™, and MICROWIRE™ Level Translation
Description
The MAX1840 includes a SHDN control input to aid insertion and removal of SIM and smart cards, while the MAX1841 includes a system-side data driver to support system controllers without open-drain outputs. The logic supply voltage range is +1.4V to +5.5V for the "controller side" and +1.7V to +5.5V for the "card side." Total supply current is 1.0µA. Both devices automatically shut down when either power supply is removed. For a complete SIM card interface, combine the MAX1840/MAX1841 with the MAX1686H 0V/3V/5V regulated charge pump.
The MAX1840/MAX1841 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 MAX1840/MAX1841 are compliant with GSM test specifications 11.11 and 11.12.
Technical Docs
| Data Sheet | Low-Voltage SIM/Smart-Card Level Translators in µMAX | Apr 01, 2000 | |
| User Guide | MAXREFDES42# IO-Link RTD Temp Sensor Quick Start Guide (IQ2 IO-Link Master Version) | ||
| App Note | Green LED Replaces LDO Regulator | ||
| App Note | Logic-Level Translation |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
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