ICL3237ECA Intersil, ICL3237ECA Datasheet

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ICL3237ECA

Manufacturer Part Number
ICL3237ECA
Description
IC 5DRVR/3RCVR RS232 3V 28-SSOP
Manufacturer
Intersil
Type
Transceiverr
Datasheet

Specifications of ICL3237ECA

Number Of Drivers/receivers
5/3
Protocol
RS232
Voltage - Supply
3 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
28-SSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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Quantity
Price
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ICL3237ECA
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ISL
Quantity:
1 000
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ICL3237ECA
Manufacturer:
Intersil
Quantity:
142
Part Number:
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INTERSIL
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Part Number:
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Manufacturer:
INTERSIL
Quantity:
20 000
±15kV ESD Protected, 10nA Supply-
Current, +3V to +5.5V, 250k/1Mbps,
RS-232 Transmitters/Receivers
The Intersil ICL3237E contains 3.0V to 5.5V powered
RS-232 transmitters/receivers which meet ElA/TIA-232 and
V.28/V.24 specifications, even at V
provides
Human Body Model) on transmitter outputs and receiver
inputs (RS-232 pins). Targeted applications are cell phones,
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 the manual powerdown function, reduce the
standby supply current to a 10nA trickle. Small footprint
packaging, and the use of small, low value capacitors ensure
board space savings as well. Data rates greater than 1Mbps
(MBAUD = V
conditions. The ICL3237E is fully compatible with 3.3V only
systems, mixed 3.3V and 5.0V systems, and 5.0V only
systems.
The ICL3237E is a 5 driver, 3 receiver device that also
includes a noninverting always-active receiver for “wake-up”
capability.
Table 1 summarizes the features of the device represented
by this data sheet, while Application Note AN9863
summarizes the features of each device comprising the
ICL32XX 3V family.
NOTE:
1. Data rate is selectable via the MBAUD pin.
ICL3237E
NUMBER
PART
±
15kV ESD protection (IEC61000-4-2 Air Gap and
CC
) are guaranteed at worst case load
NO. OF
Tx.
5
NO. OF
®
Rx.
3
1
Copyright © Intersil Americas Inc. 2002-2004. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
CC
MONITOR Rx.
Data Sheet
= 3.0V. Additionally, it
(R
NO. OF
OUTB
1
)
TABLE 1. SUMMARY OF FEATURES
(NOTE 1)
250/1000
(kbps)
DATA
RATE
1-888-INTERSIL or 321-724-7143
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Rx. ENABLE
FUNCTION?
Features
• ESD Protection For RS-232 I/O Pins to
• Pin Compatible Replacement for MAX3237E
• Pin Selectable, Guaranteed Data Rate . . 250kbps/1Mbps
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• RS-232 Compatible with V
• Latch-Up Free
• On-Chip Voltage Converters Require Only Four External
• Manual Powerdown Feature
• Flow Through Pinout
• Rx and Tx Hysteresis For Improved Noise Immunity
• Rx Active in Powerdown; Separate Rx Enable Pin
• Guaranteed Minimum Slew Rate . . . . . . . 6V/µs or 24V/µs
• Wide Power Supply Range. . . . . . . . Single +3V to +5.5V
• Low Supply Current in Powerdown State . . . . . . . . . .10nA
• Pb-free available
Applications
• Any System Requiring RS-232 Communication Ports
YES
Capacitors
- Battery Powered, Hand-Held, and Portable Equipment
- Laptop Computers, Notebooks, Palmtops
- Modems, Printers and other Peripherals
- Data Cradles and Cables
- Cellular/Mobile Phone
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
OUTPUT?
July 2004
READY
NO
MANUAL
POWER-
CC
DOWN?
YES
= 2.7V
ICL3237E
±
15kV (IEC61000)
POWERDOWN
AUTOMATIC
FUNCTION?
FN6014.2
NO

Related parts for ICL3237ECA

ICL3237ECA Summary of contents

Page 1

... NOTE: 1. Data rate is selectable via the MBAUD pin. 1 Copyright © Intersil Americas Inc. 2002-2004. All Rights Reserved All other trademarks mentioned are the property of their respective owners. Features • ESD Protection For RS-232 I/O Pins to • Pin Compatible Replacement for MAX3237E • ...

Page 2

... NOTE: 2. These input pins incorporate positive feedback resistors. Once the input is driven to a valid logic level, the feedback resistor maintains that logic level until V is removed ICL3237E Ordering Information PART NUMBER 28 C1+ ICL3237ECA ICL3237ECAZ CC (See Note ICL3237EIA ICL3237EIAZ (See Note) ...

Page 3

Typical Operating Circuit NOTE 4 TTL/CMOS LOGIC LEVELS TO CONTROL LOGIC NOTES: 3. THE NEGATIVE TERMINAL OF C CAN BE CONNECTED TO EITHER FOR V = 3.15V (3.3V -5%), USE ...

Page 4

Absolute Maximum Ratings V to Ground -0. ...

Page 5

Electrical Specifications Test Conditions: V Specified. Typicals are at T PARAMETER TIMING CHARACTERISTICS Maximum Data Rate R = 3kΩ, One L Transmitter Switching Receiver Propagation Delay Receiver Input to Receiver Output 150pF L Receiver Output Enable Time Normal ...

Page 6

... The charge pump, the transmitters, and the receivers. Charge-Pump Intersil’s new ICL32XX family utilizes regulated on-chip dual charge pumps as voltage doublers, and voltage inverters to generate ±5.5V transmitter supplies from a V low as 3.0V. This allows these devices to maintain RS-232 compliant output levels over the ± ...

Page 7

TABLE 2. POWERDOWN AND ENABLE LOGIC TRUTH TABLE SHDN INPUT EN INPUT TRANSMITTER OUTPUTS L L High High Active H H Active OUT CC Rx POWERED DOWN UART Tx ...

Page 8

Operation Down to 2.7V ICL3237E transmitter outputs meet RS-562 levels ( the full data rate, with V as low as 2.7V. RS-562 levels CC typically ensure inter operability with RS-232 devices. Transmitter Outputs when Exiting Powerdown Figure 4 shows the ...

Page 9

Interconnection with 3V and 5V Logic The ICL3237E directly interfaces with 5V CMOS and TTL logic families. Nevertheless, with the ICL32XX at 3.3V, and the logic supply at 5V, AC, HC, and CD4000 outputs can drive ICL32XX inputs, but ICL32XX ...

Page 10

Typical Performance Curves TRANSMITTER AT 250kbps OTHER TRANSMITTERS AT 30kbps 0 MBAUD = GND - 1000 2000 3000 LOAD CAPACITANCE (pF) FIGURE 8. LOW SPEED TRANSMITTER OUTPUT VOLTAGE vs LOAD CAPACITANCE 25 20 ...

Page 11

Typical Performance Curves Die Characteristics SUBSTRATE POTENTIAL (POWERED UP): GND TRANSISTOR COUNT: 619 PROCES Si Gate CMOS 11 ICL3237E 3.3V (Continued 3.5 NO LOAD ALL OUTPUTS STATIC 3.0 2.5 2.0 1.5 ...

Page 12

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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