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PDF ICL3237 Data sheet ( Hoja de datos )
| Número de pieza | ICL3237 | |
| Descripción | RS-232 Transmitters/Receivers | |
| Fabricantes | Intersil | |
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NDORaTEtCRaOESMChOMeMeEtNMDEENDIDCERLD3E2PF3LO7AERCNEEMWENDOTEcPStAIoGRbNeTSr 21, 2005
ICL3237
FN6003.3
1 Microamp Supply-Current, +3V to +5.5V,
1Mbps, RS-232 Transmitters/Receivers
The Intersil ICL3237 contains 3.0V to 5.5V powered RS-232
transmitters/receivers which meet ElA/TIA-232 and
V.28/V.24 specifications, even at VCC = 3.0V. 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 manual powerdown
function, reduce the standby supply current to a 1A trickle.
Small footprint packaging, and the use of small, low value
capacitors ensure board space savings as well. Data rates
greater than 1Mbps (MBAUD = VCC) are guaranteed at
worst case load conditions. This family is fully compatible
with 3.3V only systems, mixed 3.3V and 5.0V systems, and
5.0V only systems.
The ICL3237 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.
Features
• 15kV ESD Protected (Human Body Model)
• Drop in Replacement for MAX3237
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• Latch-Up Free
• On-Chip Voltage Converters Require Only Four External
Capacitors
• Manual Powerdown Features
• Flow Through Pinout
• Receiver Hysteresis For Improved Noise Immunity
• Pin Selectable Data Rate
• Guaranteed Minimum Data Rate . . . . . . . 250kbps/1Mbps
• Guaranteed Minimum Slew Rate . . . . . . . 6V/s or 24V/s
• Wide Power Supply Range . . . . . . . Single +3V to +5.5V
• Low Supply Current in Powerdown State. . . . . . . . . . .1A
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Any System Requiring RS-232 Communication Ports
- Battery Powered, Hand-Held, and Portable Equipment
- Laptop Computers, Notebooks, Palmtops
- Modems, Printers and other Peripherals
- Digital Cameras
- Cellular/Mobile Phone
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• AN9863 “3V to +5.5V, 250k-1Mbps, RS-232
Transmitters/Receivers”
TABLE 1. SUMMARY OF FEATURES
PART
NUMBER
ICL3237
NO. OF NO. OF
Tx. Rx.
53
NO. OF
MONITOR Rx.
(ROUTB)
1
(NOTE 1)
DATA
RATE
(kbps)
250/1000
Rx. ENABLE
FUNCTION?
YES
READY
OUTPUT?
NO
NOTE:
1. Data rate is selectable via the MBAUD pin.
MANUAL
POWER-
DOWN?
YES
AUTOMATIC
POWERDOWN
FUNCTION?
NO
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2001-2002, 2004-2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 page  
ICL3237
Electrical Specifications
PARAMETER
Test Conditions: VCC = 3V, C1
Specified. Typicals are at TA =
2- 5Co4C=
0.22F; VCC
(Continued)
=
3.15V
to
5.5V,
C1
-
C4
=
0.1F,
Unless
Otherwise
TEST CONDITIONS
TEMP
(oC)
MIN
TYP MAX UNITS
Output Resistance
Output Short-Circuit Current
VCC = V+ = V- = 0V, Transmitter Output = 2V
Full 300
Full -
10M -
35 60 mA
Output Leakage Current
TIMING CHARACTERISTICS
VOUT =12V, VCC = 0V or 3V to 5.5V, SHDN = GND
Full -
- 25 A
Maximum Data Rate
Receiver Propagation Delay
Receiver Output Enable Time
RL = 3kOne
CL = 1000pF
Transmitter Switching
VCC = 3V to 4.5V,
CL = 250pF
VCC = 4.5V to 5.5V,
CL = 1000pF
Receiver Input to
Receiver Output,
CL = 150pF
tPHL
tPLH
Normal Operation
MBAUD = GND Full
MBAUD = VCC Full
MBAUD = VCC Full
25
25
25
250
1000
1000
-
-
-
700
1700
1100
0.15
0.15
200
- kbps
- kbps
- kbps
- s
- s
- ns
Receiver Output Disable Time Normal Operation
25 -
200 - ns
Transmitter Skew
Receiver Skew
Transition Region Slew Rate
ESD PERFORMANCE
tPHL - tPLH (Note 3) MBAUD = GND
MBAUD = VCC, VCC = 3.0V
tPHL - tPLH, CL = 150pF
VCC = 3.3V,
RL = 3kto 7k
Measured From 3V to
-3V or -3V to 3V
CL = 150pF to 1000pF MBAUD = GND
MBAUD = VCC
CL = 150pF to 2500pF MBAUD = GND
25
25
25
25
25
25
-
-
-
6
24
4
100 ns
25 ns
50 - ns
17 30 V/s
40 150 V/s
12 30 V/s
RS-232 Pins (TOUT, RIN)
Human Body Model
IEC61000-4-2 Contact Discharge
25 -
25 -
15 - kV
8 - kV
IEC61000-4-2 Air Gap Discharge
25 -
8 - kV
All Other Pins
Human Body Model
25 - 2.5 - kV
NOTE:
3. Skew is measured at the input switching points (1.4V).
5
5 Page 
ICL3237
Shrink Small Outline Plastic Packages (SSOP)
N
INDEX
AREA
E
-B-
H
0.25(0.010) M B M
GAUGE
PLANE
123
-A- D
SEATING PLANE
A
0.25
0.010
L
-C-
e A1
B
0.25(0.010) M C A M B S
A2
0.10(0.004)
C
NOTES:
1. Symbols are defined in the “MO Series Symbol List” in Section 2.2
of Publication Number 95.
2. Dimensioning and tolerancing per ANSI Y14.5M-1982.
3. Dimension “D” does not include mold flash, protrusions or gate
burrs. Mold flash, protrusion and gate burrs shall not exceed
0.20mm (0.0078 inch) per side.
4. Dimension “E” does not include interlead flash or protrusions.
Interlead flash and protrusions shall not exceed 0.20mm (0.0078
inch) per side.
5. The chamfer on the body is optional. If it is not present, a visual
index feature must be located within the crosshatched area.
6. “L” is the length of terminal for soldering to a substrate.
7. “N” is the number of terminal positions.
8. Terminal numbers are shown for reference only.
9. Dimension “B” does not include dambar protrusion. Allowable
dambar protrusion shall be 0.13mm (0.005 inch) total in excess of
“B” dimension at maximum material condition.
10. Controlling dimension: MILLIMETER. Converted inch dimensions
are not necessarily exact.
M28.209 (JEDEC MO-150-AH ISSUE B)
28 LEAD SHRINK SMALL OUTLINE PLASTIC PACKAGE
INCHES
MILLIMETERS
SYMBOL MIN MAX MIN MAX NOTES
A
- 0.078 - 2.00
-
A1 0.002 - 0.05
-
-
A2
0.065 0.072
1.65
1.85
-
B
0.009 0.014
0.22
0.38
9
C
0.004 0.009
0.09
0.25
-
D
0.390 0.413
9.90 10.50
3
E
0.197 0.220
5.00
5.60
4
e 0.026 BSC
0.65 BSC
-
H
0.292 0.322
7.40
8.20
-
L
0.022 0.037
0.55
0.95
6
N 28
28 7
0° 8° 0° 8°
-
Rev. 2 6/05
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9001 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
11
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet ICL3237.PDF ] | |
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