參數(shù)資料
型號： MAX1841EUB+T
廠商： Maxim Integrated Products
文件頁數(shù)： 1/8頁
文件大?。?/td> 0K
描述： IC TRANS LEVEL SIM 10-UMAX
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 2,500
應用： 智能卡
接口： MICROWIRE?，QSPI?，串行，SPI?
電源電壓： 1.4 V ~ 5.5 V，1.7 V ~ 5.5 V
封裝/外殼： 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）
供應商設(shè)備封裝： 10-µMAX
包裝： 帶卷 (TR)
安裝類型： 表面貼裝
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 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 1.0A. 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 MAX 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 1A Total Quiescent Supply Current
o 0.01A Total Shutdown Supply Current
o Ultra-Small 10-Pin MAX Package
o Compliant with GSM Test Specifications 11.11
and 11.12
MAX1840/MAX1841
Low-Voltage SIM/Smart Card
Level Translators in MAX
________________________________________________________________ Maxim Integrated Products
1
IO
1
DATA
2
3
4
5
9
8
7
6
VCC
CLK
RST
GND
SHDN (DDRV)
( ) ARE FOR MAX1841.
RIN
CIN
DVCC
10
MAX1840
MAX1841
MAX
TOP VIEW
VCC
SIM OR
SMART
CARD
SYSTEM
CONTROLLER
CLK
IO
GND
IO
CLK
GND
VCC
DVCC
MAX1840
MAX1841
SHDN*
OPTIONAL
RIN
CIN
RST
OPTIONAL
DATA
DDRV*
SHDN FOR MAX1840 ONLY;
DDRV FOR MAX1841 ONLY.
*
DVCC
VCC
Typical Operating Circuit
19-1716; Rev 0; 4/00
PART
MAX1840EUB
MAX1841EUB
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
10 MAX
Pin Configuration
Ordering Information
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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