ISL4221 datasheet, PDF - EEWORLD Datasheet

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ISL4221: DescriptionLINE TRANSCEIVER, PQCC16; Categorysemiconductor Analog mixed-signal IC; File Size661KB，14 Pages; ManufacturerIntersil ( Renesas ); Websitehttp://www.intersil.com/cda/home/

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ISL4221 Overview

LINE TRANSCEIVER, PQCC16

ISL4221 Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	16
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply voltage 1	5.5 V
Minimum supply voltage 1	2.7 V
Rated supply voltage 1	3 V
Processing package description	5 × 5 MM, lead FREE, plastic, QFN-16
Lead-free	Yes
EU RoHS regulations	Yes
state	ACTIVE
Craftsmanship	CMOS
packaging shape	SQUARE
Package Size	Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
surface mount	Yes
Terminal form	NO
Terminal spacing	0.8000 mm
terminal coating	MATTE Tin
Terminal location	Four
Packaging Materials	Plastic/Epoxy
Temperature level	INDUSTRIAL
Interface Type	line transceiver
Interface standards	EIA-232; TIA-232; V.24; V.28
Number of drive digits	1
Input properties	SCHMITT trigger
Number of receiver bits	1

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DATASHEET

ISL3232E, ISL4221E, ISL4223E

QFN Packaged, ±15kV ESD Protected, +2.7V to +5.5V, 150nA, 250kbps, RS-232

Transmitters/Receivers

The Intersil ISL3232E and ISL4221E, ISL4223E devices are

2.7V to 5.5V powered RS-232 transmitters/receivers which

meet ElA/TIA-232 and V.28/V.24 specifications, even at

= 3.0V. Additionally, they provide ±15kV ESD protection

(IEC61000-4-2 Air Gap and Human Body Model) on

transmitter outputs and receiver inputs (RS-232 pins).

Targeted applications are PDAs, Palmtops, and hand-held

products where the low operational, and even lower standby,

power consumption is critical. Efficient on-chip charge pumps,

coupled with manual and automatic power-down functions,

reduce the standby supply current to a 150nA trickle. Tiny

5mmx5mm

Quad Flat No-Lead

(QFN) packaging and the

use of small, low value capacitors ensure board space

savings as well. Data rates greater than 250kbps are

guaranteed at worst case load conditions.

The ISL4221E is a 1 driver, 1 receiver device and the

ISL3232E and ISL4223E are 2 driver, 2 receiver devices

that, coupled with the 5mmx5mm QFN package, provide the

industry’s smallest, lowest power serial port suitable for

PDAs, and hand-held applications. The 5mmx5mm QFN

requires 40% less board area than a 20 Ld TSSOP, and is

nearly 20% thinner.

The

ISL4221E, ISL4223E

versions feature an

automatic

power-down

function that powers down the on-chip power

supply and driver circuits. This occurs when an attached

peripheral device is shut off or the RS-232 cable is removed,

conserving system power automatically without changes to

the hardware or operating system. It powers up again when

a valid RS-232 voltage is applied to any receiver input.

Table 1 summarizes the features of the IC’s, while

Application Note AN9863 summarizes the features of each

device comprising the 3V RS-232 family.

FN6045

Rev 6.00

May 13, 2010

Features

• Available in Near Chip Scale QFN (5mmx5mm) Package,

which is 40% Smaller than a 20 Ld TSSOP

• ESD Protection for RS-232 I/O Pins to



15kV (IEC61000)

• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V

• RS-232 Compatible with V

= 2.7V

• On-Chip Voltage Converters Require Only Four External

0.1µF Capacitors

• Manual and Automatic Power-down Features (Except

ISL3232E)

• Receiver Hysteresis For Improved Noise Immunity

• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps

• Wide Power Supply Range . . . . . . Single +2.7V to +5.5V

• Low Supply Current in Power-down State . . . . . . . .150nA

• Pb-Free Available (RoHS Compliant)

Applications

• Any Space Constrained System Requiring RS-232 Ports

- Battery Powered, and Portable Equipment

- Hand-Held Products (GPS Receivers, Bar Code

Scanners, etc.)

- PDAs and Palmtops, Data Cables

- Cellular/Mobile Phones, Digital Cameras

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

• Technical Brief TB379 “Thermal Characterization of

Packages for ICs”

• Technical Brief TB389 “PCB Land Pattern Design and

Surface Mount Guidelines for QFN Packages”

TABLE 1. SUMMARY OF FEATURES

PART NUMBER

ISL4221E

ISL3232E

ISL4223E

NO. OF NO. OF

Tx.

Rx.

QFN PKG.

AVAILABLE?

YES

DATA RATE

(kbps)

250

Rx. ENABLE

FUNCTION?

YES

MANUAL

POWER-DOWN?

YES

AUTOMATIC POWER-DOWN

FUNCTION?

YES

FN6045 Rev 6.00

May 13, 2010

Page 1 of 14

ISL4221 Related Products

	ISL4221	ISL4221EIRZ-T	ISL4221EIR-T	ISL4223EIR-T	ISL4223EIRZ-T	ISL4223EIRZ-TK
Description	LINE TRANSCEIVER, PQCC16	LINE TRANSCEIVER, PQCC16	LINE TRANSCEIVER, PQCC16	LINE TRANSCEIVER, PQCC16	DUAL LINE TRANSCEIVER, PQCC20	PB-FREE 3V RS-232 2TX/2RX -40+85
Number of functions	1	1	1	1	2	-
Number of terminals	16	16	16	16	20	-
Maximum operating temperature	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel	-
Minimum operating temperature	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-
Maximum supply voltage 1	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	-
Minimum supply voltage 1	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	-
Rated supply voltage 1	3 V	3 V	3 V	3 V	3 V	-
Processing package description	5 × 5 MM, lead FREE, plastic, QFN-16	5 × 5 MM, lead FREE, plastic, QFN-16	5 × 5 MM, lead FREE, plastic, QFN-16	5 × 5 MM, lead FREE, plastic, QFN-16	5 × 5 MM, lead FREE, plastic, QFN-20	-
Lead-free	Yes	Yes	Yes	Yes	Yes	-
EU RoHS regulations	Yes	Yes	Yes	Yes	Yes	-
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	-
Craftsmanship	CMOS	CMOS	CMOS	CMOS	CMOS	-
packaging shape	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	-
Package Size	Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	Chip CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	-
surface mount	Yes	Yes	Yes	Yes	Yes	-
Terminal form	NO	NO	NO	NO	NO	-
Terminal spacing	0.8000 mm	0.8000 mm	0.8000 mm	0.8000 mm	0.6500 mm	-
terminal coating	MATTE Tin	MATTE Tin	MATTE Tin	MATTE Tin	MATTE Tin	-
Terminal location	Four	Four	Four	Four	Four	-
Packaging Materials	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	-
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	-
Interface Type	line transceiver	line transceiver	line transceiver	line transceiver	line transceiver	-
Interface standards	EIA-232; TIA-232; V.24; V.28	EIA-232; TIA-232; V.24; V.28	EIA-232; TIA-232; V.24; V.28	EIA-232; TIA-232; V.24; V.28	EIA-232; TIA-232; V.24; V.28	-
Number of drive digits	1	1	1	1	2	-
Input properties	SCHMITT trigger	SCHMITT trigger	SCHMITT trigger	SCHMITT trigger	SCHMITT trigger	-
Number of receiver bits	1	1	1	1	2	-

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