1
FN4914.5
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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ICL3207E, ICL3217E
+/- 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
VCC = 3.0V. Additionally, they provide ±15kV ESD
protection (IEC61000-4-2 Air Gap) and ±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’s
efficient on-chip charge pumps, coupled with an automatic
powerdown function, reduces the standby supply current to
a 1
A 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 ‘207E and ‘237E 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
Pb-Free Available as an Option (see Ordering Info)
ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)
5V Lower Power Replacement for MAX207E, HIN207E,
HIN237E
Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V
Latch-Up Free
On-Chip Voltage Converters Require Only Four External
0.1
F Capacitors
RS-232 Compatible with VCC = 2.7V
Automatic Powerdown (ICC = 1A, ICL3217E Only)
Receiver Hysteresis For Improved Noise Immunity
Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps
Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . . 6V/
s
Wide Power Supply Range . . . . . . . Single +3V to +5.5V
Applications
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
T3OUT
T1OUT
T2OUT
R1IN
R1OUT
T2IN
T1IN
GND
VCC
C1+
V+
C1-
T4OUT
R2OUT
T5IN
T5OUT
T4IN
R3OUT
V-
C2-
C2+
R2IN
T3IN
R3IN
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
21
22
23
24
15
14
13
TABLE 1. SUMMARY OF FEATURES
PART NUMBER
NO. OF
TX
NO. OF
RX
NO. OF MONITOR
RX (ROUTB)
DATA RATE
(kbps)
RX ENABLE
FUNCTION?
MANUAL
POWER-
DOWN?
AUTOMATIC
POWERDOWN
FUNCTION?
ICL3207E
5
3
0
250
NO
ICL3217E
5
3
0
250
NO
YES
Data Sheet
June 2004