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MAX1840

Description
SPECIALTY INTERFACE CIRCUIT, PDSO10
Categorysemiconductor    Analog mixed-signal IC   
File Size291KB,8 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Download user manual Parametric View All

MAX1840 Overview

SPECIALTY INTERFACE CIRCUIT, PDSO10

MAX1840 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals10
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Maximum supply voltage 15.5 V
Minimum supply voltage 11.7 V
Rated supply voltage 11.8 V
Processing package descriptionUMAX-10
stateACTIVE
packaging shapeSQUARE
Package SizeSMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.5000 mm
terminal coatingtin lead
Terminal locationpair
Packaging MaterialsPlastic/Epoxy
Temperature levelINDUSTRIAL
Maximum supply voltage 25.5 V
Minimum supply voltage 21.4 V
Rated supply voltage 21.8 V
Interface TypeInterface Circuit
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.
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 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
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
Features
MAX1840/MAX1841
Applications
SIM Interface in GSM Cellular Telephones
Smart Card Readers
Logic Level Translation
SPI™/QSPI™/MICROWIRE™ Level Translation
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
DV
CC
DV
CC
DV
CC
RIN
SYSTEM
CONTROLLER
V
CC
RST
V
CC
V
CC
RST
SIM OR
SMART
CARD
Pin Configuration
TOP VIEW
DATA
DV
CC
CIN
RIN
SHDN (DDRV)
1
2
3
4
5
10
IO
9
V
CC
CLK
RST
GND
MAX1840
MAX1841
CIN
DATA
OPTIONAL
OPTIONAL
SHDN*
DDRV*
IO
GND
IO
CLK
CLK
MAX1840
MAX1841
8
7
6
µMAX
( ) ARE FOR MAX1841.
GND
GND
* SHDN FOR MAX1840 ONLY;
DDRV FOR MAX1841 ONLY.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
1
________________________________________________________________
Maxim Integrated Products
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.
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