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參數(shù)資料
| 型號： | LTC1756EGN#TR |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SMART CARD INTERFACE 16SSOP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 應(yīng)用： | 智能卡 |
| 電源電壓： | 2.7 V ~ 6 V |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SSOP |
| 包裝： | 帶卷 (TR) |
| 安裝類型： | 表面貼裝 |
1
LTC1755/LTC1756
Smart Card Interface
s
Fully ISO 7816-3 and EMV Compliant
(Including Auxiliary I/O Pins)
s
Buck-Boost Charge Pump Generates 3V or 5V
s
2.7V to 6.0V Input Voltage Range (LTC1755)
s
Very Low Operating Current: 60
A
s
> 10kV ESD on All Smart Card Pins
s
Dynamic Pull-Ups Deliver Fast Signal Rise Times
s
Soft-Start Limits Inrush Current at Turn On
s
3V
5V Signal Level Translators
s
Shutdown Current: < 1
A
s
Short-Circuit and Overtemperature Protected
s
Alarm Output Indicates Fault Condition
s
Multiple Devices May Be Paralleled for
Multicard Applications (LTC1755)
s
Available in 16- and 24-Pin SSOP Packages
The LTC
1755/LTC1756 universal Smart Card interfaces
are fully compliant with ISO 7816-3 and EMV specifica-
tions. The parts provide the smallest and simplest inter-
face circuits between a host microcontroller and general
purpose Smart Cards.
An internal charge pump DC/DC converter delivers regu-
lated 3V or 5V to the Smart Card, while on-chip level
shifters allow connection to a low voltage controller. All
Smart Card contacts are rated for 10kV ESD, eliminating
the need for external ESD protection devices.
Input voltage may range from 2.7V to 6.0V, allowing direct
connection to a battery. Internal soft-start mitigates start-
up problems that may result when the input power is
provided by another regulator. Multiple devices may be
paralleled and connected to a single controller for multicard
applications.
Battery life is maximized by 60
A operating current and
1
A shutdown current. The narrow SSOP packages mini-
mize PCB area for compact portable systems.
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
Handheld Payment Terminals
s
Pay Telephones
s
ATMs
s
Key Chain Readers
s
Smart Card Readers
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
LTC1755
PRES
PWR
CS
NC/NO
GND
VIN
VCC
AUX1
AUX2
I/O
RST
CLK
C2
10
F
C3
10
F
VCC
AUX1
AUX2
I/O
RST
CLK
C1
0.68
F
GND
SMART CARD
17556 TA01
SMART CARD
PRESENT SWITCH
CONTROLLER
3.3V
5V/3V
CARD
ALARM
READY
DVCC
C –
C +
AUX1IN
AUX2IN
DATA
RIN
CIN
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