廬
ICL3207E, ICL3217E
Data Sheet
June 2004
FN4914.5
+/- 15kV ESD Protected, +3V to +5.5V, Low
Power, 250kbps, RS-232
Transmitters/Receivers
The Intersil ICL32X7E devices are 3V to 5.5V powered
RS-232 transmitters (five)/receivers (three) which meet
ElA/TIA-232 and V.28/V.24 specifications, even at
V
CC
= 3.0V. Additionally, they provide
鹵
15kV ESD
protection (IEC61000-4-2 Air Gap) and
鹵
15kV Human Body
Model protection on transmitter outputs and receiver inputs
(RS-232 pins). Targeted applications are ISDN Terminal
Adaptors, PDAs, Palmtops, peripherals, and notebook and
laptop computers where the low operational, and even lower
standby, power consumption is critical. The ICL3217E鈥檚
efficient on-chip charge pumps, coupled with an automatic
powerdown function, reduces the standby supply current to
a 1碌A(chǔ) trickle. Small footprint 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. This family is fully compatible
with 3.3V-only systems, mixed 3.3V and 5V systems, and
5V-only systems, and is a lower power, pin-for-pin
replacement for 鈥?07E and 鈥?37E type devices.
The
ICL3217E
features an
automatic powerdown
function
which 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. The ICL3217E powers up again when a
valid RS-232 voltage is applied to any receiver input.
Table 1 summarizes the features of the devices represented
by this data sheet, while application Note AN9863
summarizes the features of each device comprising the
ICL32XXE 3V family.
Features
鈥?Pb-Free Available as an Option (see Ordering Info)
鈥?ESD Protection for RS-232 I/O Pins to
鹵
15kV (IEC61000)
鈥?5V Lower Power Replacement for MAX207E, HIN207E,
HIN237E
鈥?Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
鈥?Latch-Up Free
鈥?On-Chip Voltage Converters Require Only Four External
0.1碌F Capacitors
鈥?RS-232 Compatible with V
CC
= 2.7V
鈥?Automatic Powerdown (I
CC
= 1碌A(chǔ), ICL3217E Only)
鈥?Receiver Hysteresis For Improved Noise Immunity
鈥?Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
鈥?Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . . 6V/碌s
鈥?Wide Power Supply Range . . . . . . . Single +3V to +5.5V
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Battery Powered, Hand-Held, and Portable Equipment
Laptop Computers, Notebooks, Palmtops
Modems, Printers and other Peripherals
ISDN Terminal Adaptors and Set Top Boxes
Related Literature
- Technical Brief TB363,
Guidelines for Handling and
Processing Moisture Sensitive Surface Mount
Devices (SMDs)
Pinout
ICL3207E, ICL3217E (SOIC, SSOP)
TOP VIEW
T3
OUT
1
T1
OUT
2
T2
OUT
3
R1
IN
4
24 T4
OUT
23 R2
IN
22 R2
OUT
21 T5
IN
20 T5
OUT
19 T4
IN
18 T3
IN
17 R3
OUT
16 R3
IN
15 V-
14 C2-
13 C2+
R1
OUT
5
T2
IN
T1
IN
GND
V
CC
6
7
8
9
C1+ 10
V+ 11
C1- 12
TABLE 1. SUMMARY OF FEATURES
NO. OF
TX
5
5
NO. OF
RX
3
3
NO. OF MONITOR
RX (R
OUTB
)
0
0
DATA RATE
(kbps)
250
250
RX ENABLE
FUNCTION?
NO
NO
MANUAL
POWER-
DOWN?
NO
NO
AUTOMATIC
POWERDOWN
FUNCTION?
NO
YES
PART NUMBER
ICL3207E
ICL3217E
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, 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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Low Power, +3V to +5.5V, 250kbps, RS-232 Transmitters/Receiv...
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Low Power, +3V to +5.5V, 250kbps, RS-232 Transmitters/Receiv...
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1 Microamp Supply-Current, +3V to +5.5V, 250kbps, RS-232 Tra...
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1 Microamp Supply-Current, +3V to +5.5V, 250kbps, RS-232 Tra...
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