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Intersil Electronic Components Datasheet



ICL3225CA-T

1 Microamp/ +3V to +5.5V/ 1Mbps/ RS-232 Transceivers with Enhanced Automatic Powerdown



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ICL3225CA-T pdf
®
Data Sheet
ICL3225, ICL3245
July 2004
FN4878.6
1 Microamp, +3V to +5.5V, 1Mbps, RS-232
Transceivers with Enhanced Automatic
Powerdown
The Intersil ICL32XX devices are 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 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 powerdown functions, reduce the standby supply
current to a 1µA trickle. Small footprint packaging, and the
use of small, low value capacitors ensure board space
savings as well. Data rates greater than 1Mbps 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 ICL3245 is a 3 driver, 5 receiver device that provides a
complete serial port suitable for laptop or notebook
computers. It also includes a noninverting always-active
receiver for “wake-up” capability.
These devices, feature an enhanced automatic
powerdown 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 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)
• Manual and Enhanced Automatic Powerdown Features
• Drop in Replacements for MAX3225, MAX3245
• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
• Latch-Up Free
• On-Chip Voltage Converters Require Only Four External
0.1µF Capacitors
• Guaranteed Mouse Driveability (ICL3245)
• “Ready to Transmit” Indicator Output (ICL3225)
• Receiver Hysteresis For Improved Noise Immunity
• Guaranteed Minimum Data Rate . . . . . . . . . . . . . . 1Mbps
• Low Skew at Transmitter/Receiver Input Trip Points . . . 10ns
• Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . 24V/µs
• Wide Power Supply Range. . . . . . . . Single +3V to +5.5V
• Low Supply Current in Powerdown State . . . . . . . . . . .1µA
Pb-free available
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 Phones
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
TABLE 1. SUMMARY OF FEATURES
PART
NUMBER
ICL3225
ICL3245
NO. OF NO. OF
Tx. Rx.
22
35
NO. OF
MONITOR Rx.
(ROUTB)
0
1
DATA
RATE
(kbps)
1000
1000
Rx. ENABLE
FUNCTION?
No
No
READY
OUTPUT?
Yes
No
MANUAL
POWER-
DOWN?
Yes
Yes
ENHANCED
AUTOMATIC
POWERDOWN
FUNCTION?
Yes
Yes
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2000, 2001, 2003, 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.



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ICL3225CA-T pdf
ICL3225, ICL3245
Ordering Information
PART NO.
ICL3225CA
ICL3225CA-T
ICL3225CP
ICL3225IA
ICL3225IA-T
ICL3225IAZ
(See Note)
ICL3225IAZ-T
(See Note)
TEMP.
RANGE (°C)
PACKAGE
PKG.
DWG. #
0 to 70
20 Ld SSOP M20.209
0 to 70
20 Ld SSOP M20.209
Tape and Reel
0 to 70
20 Ld PDIP E20.3
-40 to 85 20 Ld SSOP M20.209
-40 to 85
20 Ld SSOP M20.209
Tape and Reel
-40 to 85
20 Ld SSOP M20.209
(Pb-free)
-40 to 85
20 Ld SSOP M20.209
Tape and Reel
(Pb-free)
Ordering Information (Continued)
PART NO.
TEMP.
RANGE (°C)
PACKAGE
PKG.
DWG. #
ICL3245CA
0 to 70
28 Ld SSOP M28.209
ICL3245CA-T
0 to 70
28 Ld SSOP M28.209
Tape and Reel
ICL3245IV
-40 to 85 28 Ld TSSOP M28.173
ICL3245IV-T
-40 to 85
28 Ld TSSOP M28.173
Tape and Reel
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which is compatible with both SnPb and
Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J Std-020B.
Pinouts
ICL3225 (PDIP, SSOP)
TOP VIEW
READY 1
C1+ 2
V+ 3
C1- 4
C2+ 5
C2- 6
V- 7
T2OUT 8
R2IN 9
R2OUT 10
20 FORCEOFF
19 VCC
18 GND
17 T1OUT
16 R1IN
15 R1OUT
14 FORCEON
13 T1IN
12 T2IN
11 INVALID
ICL3245 (SSOP, TSSOP)
TOP VIEW
C2+ 1
C2- 2
V- 3
R1IN 4
R2IN 5
R3IN 6
R4IN 7
R5IN 8
T1OUT 9
T2OUT 10
T3OUT 11
T3IN 12
T2IN 13
T1IN 14
28 C1+
27 V+
26 VCC
25 GND
24 C1-
23 FORCEON
22 FORCEOFF
21 INVALID
20 R2OUTB
19 R1OUT
18 R2OUT
17 R3OUT
16 R4OUT
15 R5OUT
2



Part Number ICL3225CA-T
Description 1 Microamp/ +3V to +5.5V/ 1Mbps/ RS-232 Transceivers with Enhanced Automatic Powerdown
Maker Intersil - Intersil
Total Page 18 Pages
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