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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1840 Datasheet

Low-Voltage SIM/Smart Card Level Translators

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MAX1840 pdf
19-1716; Rev 0; 4/00
Low-Voltage SIM/Smart Card
Level Translators in µMAX
General Description
The MAX1840/MAX1841 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 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 sup-
ply current is 1.0µA. Both devices automatically shut
down when either power supply is removed. For a com-
plete 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.
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 +1.4V to +5.5V Controller Voltage Range
o +1.7V to +5.5V Card Voltage Range
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 1µA 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
MAX1840EUB
MAX1841EUB
Ordering Information
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
10 µMAX
Typical Operating Circuit
DVCC
DVCC
DVCC
VCC
VCC
SYSTEM
CONTROLLER
RIN RST
MAX1840
MAX1841
CIN CLK
OPTIONAL
OPTIONAL
DATA
SHDN*
DDRV*
IO
GND
GND
* SHDN FOR MAX1840 ONLY;
DDRV FOR MAX1841 ONLY.
VCC
RST
SIM OR
SMART
CARD
CLK
IO
GND
Pin Configuration
TOP VIEW
DATA 1
DVCC 2
CIN 3
RIN 4
SHDN (DDRV) 5
( ) ARE FOR MAX1841.
MAX1840
MAX1841
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

MAX1840 Datasheet

Low-Voltage SIM/Smart Card Level Translators

No Preview Available !

MAX1840 pdf
Low-Voltage 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 = +1.8V, +3.0V, or +5.0V; SHDN = DVCC, CIN = RIN = GND or DVCC, IO = VCC, DATA = DDRV = DVCC,
CIO = CCLK = CRST = CDATA = 30pF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
POWER SUPPLIES
DVCC Operating Range
DVCC
1.4 5.5 V
VCC Operating Range
VCC
1.7 5.5 V
CIN static
0.1 0.5
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
2.5
5
µA
CIN static
0.9 3.0
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
0.4
0.8
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 Pullup 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
(MAX1840 only), or DVCC = GND
or VCC = GND
ISINK = 200µA
ISOURCE = 20µA
ISOURCE = 200µA
Between DATA and DVCC
(Note 2)
(Note 3)
VCC = 5.0V
0.01 1
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 MAX1840
Description Low-Voltage SIM/Smart Card Level Translators
Maker Maxim
Total Page 8 Pages
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