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MAX1740, MAX1741
SIM/Smart-Card Level Translators in µMAX
Industry's Smallest SIM/Smart-Card Level Translators
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Status
Active: In Production.
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-bar 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.
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Data Sheet
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Key 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
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Applications/Uses
- Logic-Level Translation
- SIM Interface in GSM Cellular Telephones
- Smart Card Readers
- SPI™, QSPI™, and MICROWIRE™ Level Translation
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Key Specifications:
| SIM/Smart Card Level Translators |
| Part Number |
VCC
(V) |
VCC
(V) |
ICCQ
(µA) |
Level Shifters |
Features |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Oper. Temp.
(°C) |
Budgetary Price |
| Logic |
Card |
max |
max w/pins |
See Notes |
| MAX1740 |
1.4 to 5.5 |
2.25 to 5.5 |
2.5 |
| 1 Bidirectional | | 2 Unidirectional |
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| 10kV ESD Card Socket Protection | | Bidirectional System-Side Data | | GSM 11.11 & 11.12 Compliant | | Shutdown Control |
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15.4 |
-40 to +85 |
- |
| MAX1741 |
| 10kV ESD Card Socket Protection | | Bidirectional OR Separate System-Side Data | | GSM 11.11 & 11.12 Compliant |
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$1.45 @1k |
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See All SIM/Smart Card Level Translators (4)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Reliability Reports
| Reliability Report: |
MAX1740.pdf |
| Show FIT data for: |
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| Request Reliability Report for: |
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX1740EUB
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10-2*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX1740EUB+
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1740EUB+T
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Active |
uMAX;10 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX1740EUB-T
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10-2*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX1741EUB
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10-2*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX1741EUB+
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1741EUB+T
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Active |
uMAX;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX1741EUB-T
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Active |
µMAX;10 pin;15.4 mm²
Outline Drawing:21-0061 (PDF)
Land Pattern: 90-0330 (PDF)
Use pkgcode/variation: U10-2*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-1458
Rev 0;
2000-03-01
This page last modified: 2007-06-05
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