ISL4238EIRZ-T datasheet, PDF - EEWORLD Datasheet

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ISL4238EIRZ-T: DescriptionRS-232 Interface IC RS232 3V 5D/3R 15KV AUTODWN 32LD IND; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size762KB，17 Pages; ManufacturerRenesas Electronics Corporation; Websitehttps://www.renesas.com/; Related ProductsFound20parts with similar functions to ISL4238EIRZ-T

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ISL4238EIRZ-T Overview

RS-232 Interface IC RS232 3V 5D/3R 15KV AUTODWN 32LD IND

ISL4238EIRZ-T Parametric

Parameter Name	Attribute value
Brand Name	Intersil
Maker	Renesas Electronics Corporation
Parts packaging code	QFN
package instruction	HVQCCN, LCC32,.2SQ,20
Contacts	32
Reach Compliance Code	compliant
ECCN code	EAR99
Factory Lead Time	1 week
Differential output	NO
Number of drives	5
Input properties	SCHMITT TRIGGER
Interface integrated circuit type	LINE TRANSCEIVER
Interface standards	EIA-232; TIA-232; V.24; V.28
JESD-30 code	S-PQCC-N32
JESD-609 code	e3
length	5 mm
Humidity sensitivity level	3
Number of functions	3
Number of terminals	32
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Minimum output swing	10 V
Maximum output low current	0.0016 A
Package body material	PLASTIC/EPOXY
encapsulated code	HVQCCN
Encapsulate equivalent code	LCC32,.2SQ,20
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260
power supply	3/5 V
Certification status	Not Qualified
Maximum receive delay	550 ns
Number of receiver bits	3
Maximum seat height	1 mm
Maximum slew rate	1.5 mA
Maximum supply voltage	5.5 V
Minimum supply voltage	3.15 V
Nominal supply voltage	3.3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn) - annealed
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	30
maximum transmission delay	1100 ns
width	5 mm

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DATASHEET

ISL4238E, ISL4244E, ISL4245E

QFN Packaged, ±15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps/

1Mbps, RS-232 Transceivers with Enhanced Automatic Power-down

The Intersil ISL4238E, ISL4244E and ISL4245E 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 notebook

and laptop computers where the low operational, and even

lower standby power consumption is critical. Efficient on-chip

charge pumps, coupled with manual and enhanced

automatic power-down functions, reduce the standby supply

current to a

10nA

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 (ISL4238E/ISL4244E)/1Mbps (ISL4245E) are

guaranteed at worst case load conditions.

The ISL424xE are 3 driver, 5 receiver (DTE) devices that,

coupled with the QFN package, provide the industry’s

smallest, lowest power complete serial port suitable for

PDAs, and laptop or notebook computers. The 32 Ld 5x5

QFN requires 60% less board area than a 28 lead TSSOP,

and is nearly 20% thinner. The devices also include a

noninverting always-active receiver for “wake-up” capability.

The ISL4238E is a 5 driver, 3 receiver device optimized for

DCE applications with full hardware handshaking. It also

includes a noninverting always-active receiver for RING

INDICATOR monitoring. Transmitter and logic inputs include

active feedback resistors that retain the input state once

driven to a valid logic level.

These devices feature an

enhanced automatic power-down

function which powers down the on-chip power-supply and

driver circuits. This occurs when all receiver and transmitter

inputs detect no signal transitions for a period of 30s. These

devices power back-up, automatically, whenever they sense

a transition on any transmitter or receiver input.

Table 1 summarizes the features of the ISL4238E,

ISL4244E, ISL4245, while Application Note AN9863

summarizes the features of each device comprising the 3V

RS-232 family.

FN8038

Rev 5.00

May 13, 2010

Features

• Parameters Fully Specified for 10% Tolerance Supplies

and Full Industrial Temp Range

• Available in Small QFN (5mm x 5mm) Package which is

60% Smaller than a 28 Lead TSSOP

• ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)

• DTE (ISL4244E/45E) and DCE (ISL4238E) Versions

• Lowest Supply Current in Power-down . . . . . . . . . . .10nA

• Active Feedback Resistors on T

and Logic Inputs

(ISL4238E)

• Flow Through Pinouts

• Manual and Enhanced Automatic Power-down Features

• Guaranteed Minimum Data Rate

250kbps (ISL4238E/ISL4244E) / 1Mbps (ISL4245E)

• Latch-Up Free

• On-Chip Charge Pumps Require Only Four External

0.1µF Capacitors

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

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

• RS-232 Compatible with V

= 2.7V

• Pb-Free Available (RoHS Compliant)

Applications

• Any Space Constrained System Requiring RS-232 Ports

- Battery Powered, Hand-Held, and Portable Equipment

- Laptop Computers, Notebooks

- PDAs and Palmtops, Data Cables

- Cellular/Mobile Phones, Digital Cameras, GPS

Receivers

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”

FN8038 Rev 5.00

May 13, 2010

Page 1 of 17

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ISL4238EIRZ-T Similar Products

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ISL4238EIR	Rochester Electronics	TRIPLE LINE TRANSCEIVER, PQCC32, 5 X 5 MM, PLASTIC, MO-220VHHD-2, QFN-32
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MAX3218CPP	Rochester Electronics	LINE TRANSCEIVER, PDIP20, 0.300 INCH, PLASTIC, DIP-20
ICL3238ECAZ	Rochester Electronics	TRIPLE LINE TRANSCEIVER, PDSO28, LEAD FREE, PLASTIC, MO-150AH, SSOP-28

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