參數(shù)資料
型號： MAX1741
廠商： Maxim Integrated Products, Inc.
英文描述： SIM/Smart Card Level Translators in レMAX
中文描述： SIM/智能卡電平轉(zhuǎn)換器，µMAX封裝
文件頁數(shù)： 1/12頁
文件大?。?/td> 327K
代理商： MAX1741
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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 unidirec-
tional level shifters for the reset and clock signals, a bidi-
rectional 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 “con-
troller side” and +2.25V to +5.5V for the “card side.”
Total supply current is 2.5μA max. Both devices automat-
ically shut down when either power supply is removed.
For a complete SIM-card interface, combine the
MAX1740/MAX1741 with the MAX1686H 0V/3V/5V regu-
lated 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.
Applications
SIM Interface in GSM Cellular Telephones
Smart Card Readers
Logic Level Translation
SPI/QSPI/MICROWIRE Level Translation
Features
o
SIM/Smart Card Level Shifting
o
±10kV ESD Card Socket Protection
o
Allows Level Translation with DV
CC
≥
V
CC
or
DV
CC
≤
V
CC
o
Automatically Shuts Down When Either Supply Is
Removed
o
Card Contacts Actively Pulled Low During
Shutdown
o
+1.425V to +5.5V Controller Voltage Range
o
+2.25V to +5.5V Card Voltage Range
o
2.5μA (max) Total Quiescent Supply Current
o
0.01μA Total Shutdown Supply Current
o
Ultra-Small 10-Pin μMAX Package
o
Compliant with GSM Test Specifications 11.11
and 11.12
M
SIM/Smart Card Level Translators
in μMAX
________________________________________________________________
Maxim Integrated Products
1
IO
V
CC
CLK
RST
GND
1
2
3
4
5
DATA
DV
CC
9
8
7
6
SHDN (DDRV)
( ) ARE FOR MAX1741.
RIN
CIN
10
MAX1740
MAX1741
μ
MAX
TOP VIEW
V
CC
SIM OR
SMART
CARD
SYSTEM
CONTROLLER
CLK
IO
GND
GND
IO
CLK
GND
V
CC
DV
CC
DV
CC
MAX1740
MAX1741
CIN
SHDN*
OPTIONAL
RIN
RST
RST
OPTIONAL
DATA
DDRV*
SHDN FOR MAX1740 ONLY
DDRV FOR MAX1741 ONLY
*
DV
CC
V
CC
Typical Operating Circuit
19-1458; Rev 0; 1/00
PART
MAX1740
EUB
MAX1741
EUB
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
10 μMAX
10 μMAX
Pin Configuration
Ordering Information
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
相關(guān)PDF資料
PDF描述
MAX1740EUB SIM/Smart Card Level Translators in レMAX
MAX1741EUB Replaced by TMS320C6410 : Digital Signal Processor 44-PLCC 0 to 70
MAX1744 Replaced by TMS320C6410 : Digital Signal Processor 44-PLCC 0 to 70
MAX1745 High-Voltage, Step-Down DC-DC Controller in レMAX
MAX1744EUB Replaced by TMS320C6410 : Digital Signal Processor 40-PDIP 0 to 70
相關(guān)代理商/技術(shù)參數(shù)
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