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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1740 Datasheet

SIM/Smart Card Level Translators in MAX

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19-1458; Rev 0; 1/00
SIM/Smart Card Level Translators
in µMAX
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 DVCC VCC or
DVCC VCC
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
PART
MAX1740EUB
MAX1741EUB
Ordering Information
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
10 µMAX
Typical Operating Circuit
Pin Configuration
DVCC
DVCC
SYSTEM
CONTROLLER
DVCC
VCC
RIN RST
MAX1740
MAX1741
CIN CLK
VCC
OPTIONAL
OPTIONAL
DATA
SHDN*
DDRV*
IO
GND
GND
* SHDN FOR MAX1740 ONLY
DDRV FOR MAX1741 ONLY
VCC
RST
SIM OR
SMART
CARD
CLK
IO
GND
TOP VIEW
DATA 1
DVCC 2
CIN 3
RIN 4
SHDN (DDRV) 5
( ) ARE FOR MAX1741.
MAX1740
MAX1741
µMAX
10 IO
9 VCC
8 CLK
7 RST
6 GND
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products 1
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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1740 Datasheet

SIM/Smart Card Level Translators in MAX

No Preview Available !

SIM/Smart Card Level Translators
in µMAX
ABSOLUTE 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
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Figure 1, DVCC = +1.8V, VCC = +3.0V or +5.0V, SHDN = DVCC, CIN = RIN = GND or DVCC, IO = VCC, DATA = DDRV = DVCC,
CIO = CCLK = CRST = CDATA = 30pF, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
POWER SUPPLIES
DVCC Operating Range
DVCC
1.425
5.5 V
VCC Operating Range
VCC
2.25 5.5 V
CIN static
1
DVCC Operating Current
IDVCC
CIN clocked at 1.625MHz from GND to DVCC
with 50% duty cycle
CIN clocked at 3.25MHz from GND to DVCC
with 50% duty cycle
8
16
µA
CIN static
1.5 µA
VCC Operating Current
IVCC
CIN clocked at 1.625MHz from GND to DVCC
with 50% duty cycle
CIN clocked at 3.25MHz from GND to DVCC
with 50% duty cycle
0.5
1
mA
Total Shutdown Current
ISHDN
CIN, RIN, SHDN, DDRV LOGIC INPUTS
Digital Input Low Threshold
VIL
Digital Input High Threshold
Input Leakage Current
VIH
CLK, RST OUTPUTS
Digital Output Low Level
VOL
Digital Output High Level
VOH
DATA INPUT/OUTPUT
DATA Pull-Up Resistance
Input Low Threshold
Input High Threshold
Input Low Current
Input High Current
RDATA
VIL(DATA)
VIH(DATA)
IIL
IIH
IOFF = IVCC + IDVCC, SHDN = GND
(MAX1740 only), or DVCC = GND
or VCC = GND
ISINK = 200µA
ISOURCE = 20µA
ISOURCE = 200µA
Between DATA and DVCC
(Note 1)
(Note 2)
VCC = 5.0V
0.01 2
µA
0.2 · DVCC
0.7 · DVCC
0.01 1
V
V
µA
0.9 · VCC
0.8 · VCC
0.4 V
V
13 20 28
k
0.3 V
DVCC - 0.6 V
1 mA
2 µA
2 _______________________________________________________________________________________


Part Number MAX1740
Description SIM/Smart Card Level Translators in MAX
Maker Maxim
Total Page 12 Pages
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