Datasheet Linear Technology LTC1348 — Ficha de datos

Fabricante	Linear Technology
Serie	LTC1348

3.3V / 5V Transceptor RS232 de baja potencia de 3 controladores / 5 receptores

Hojas de datos

PDF, 229 Kb, Revisión: A, Archivo subido: nov 12, 2017

Extracto del documento

Embalaje

	LTC1348CG#PBF	LTC1348CG#TRPBF	LTC1348CSW#PBF	LTC1348CSW#TRPBF	LTC1348IG#PBF	LTC1348IG#TRPBF	LTC1348ISW#PBF	LTC1348ISW#TRPBF
N	1	2	3	4	5	6	7	8
Package	SSOP-28 Dibujo del esquema del paquete	SSOP-28 Dibujo del esquema del paquete	SW-28 Dibujo del esquema del paquete	SW-28 Dibujo del esquema del paquete	SSOP-28 Dibujo del esquema del paquete	SSOP-28 Dibujo del esquema del paquete	SW-28 Dibujo del esquema del paquete	SW-28 Dibujo del esquema del paquete
Package Code	G	G	SW	SW	G	G	SW	SW
Package Index	05-08-1640 (G28)	05-08-1640 (G28)	05-08-1620 (SW28)	05-08-1620 (SW28)	05-08-1640 (G28)	05-08-1640 (G28)	05-08-1620 (SW28)	05-08-1620 (SW28)
Pin Count	28	28	28	28	28	28	28	28

Paramétricos

Parameters / Models	LTC1348CG#PBF	LTC1348CG#TRPBF	LTC1348CSW#PBF	LTC1348CSW#TRPBF	LTC1348IG#PBF	LTC1348IG#TRPBF	LTC1348ISW#PBF	LTC1348ISW#TRPBF
Driver Disable	no	no	no	no	no	no	no	no
Drivers	3	3	3	3	3	3	3	3
ESD, kV	10	10	10	10	10	10	10	10
Export Control	no	no	no	no	no	no	no	no
IEC61000-4-2 Support	yes	yes	yes	yes	yes	yes	yes	yes
Max Data Rate, Mbps	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Power, mW	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5
Protocols Supported	RS232	RS232	RS232	RS232	RS232	RS232	RS232	RS232
Rec Alive in SD	5	5	5	5	5	5	5	5
Receivers	5	5	5	5	5	5	5	5
Shutdown	yes	yes	yes	yes	yes	yes	yes	yes
Supply Voltage Range	3V, 3.3V, 5V, 5.3V	3V, 3.3V, 5V, 5.3V	3V, 3.3V, 5V, 5.3V	3V, 3.3V, 5V, 5.3V	3V, 3.3V, 5V, 5.3V	3V, 3.3V, 5V, 5.3V	3V, 3.3V, 5V, 5.3V	3V, 3.3V, 5V, 5.3V
Voltage Gen Components	5 x 0.1ВµF	5 x 0.1ВµF	5 x 0.1ВµF	5 x 0.1ВµF	5 x 0.1ВµF	5 x 0.1ВµF	5 x 0.1ВµF	5 x 0.1ВµF

Plan ecológico

	LTC1348CG#PBF	LTC1348CG#TRPBF	LTC1348CSW#PBF	LTC1348CSW#TRPBF	LTC1348IG#PBF	LTC1348IG#TRPBF	LTC1348ISW#PBF	LTC1348ISW#TRPBF
RoHS	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente

Notas de Diseño

Descargar
Single Interface Chip Controls Two Smart Cards &mdash DN289
PDF, 95 Kb, Archivo publicado: jul 1, 2002
Extracto del documento
Single Interface Chip Controls Two Smart Cards вЂ“ Design Note 289
Steven Martin
Introduction
There are considerable challenges to smart card interfacing, including various voltage levels (both input and
output) and stringent fault handling requirements. To
produce a robust card reading system, designers must
comply with extensive and often difп¬Ѓcult software as
well as hardware standards. Furthermore, there are
other complications like in-circuit ESD and pin-to-pin
shorts to contend with.
The LTC В®1955 dual smart card interface provides all
of the required power management, control, ESD and
fault detection circuitry for two smart cards. Employing
a voltage doubling charge pump and two low dropout
linear regulators, this device generates two independent levels of either 5V, 3V or 1.8V from a 2.7V to 5.5V input. Both channels have the required pins to support
the EMV (Europay, MasterCard, Visa) and the ISO7816
smart card standards. One channel has extra control
pins (smart card contact pad locations C4 and C8)
to support existing memory cards. The entire chip is
controlled by a microcontroller-friendly serial interface.
Features
The LTC1955 includes considerable security and functionality, yet remains easy to use. Two independent
circuits detect the presence or absence of a smart …

Linea modelo

Serie: LTC1348 (8)

LTC1348CG#PBF LTC1348CG#TRPBF LTC1348CSW#PBF LTC1348CSW#TRPBF LTC1348IG#PBF LTC1348IG#TRPBF LTC1348ISW#PBF LTC1348ISW#TRPBF

Clasificación del fabricante

Interface > RS232/RS562 Transceivers

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