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ICL3221EMVZ

P1-P3P4-P6P7-P9P10-P12P13-P13
1
DATASHEET
±15kV ESD Protected, +3.3V, 1µA, 250kbps, RS-232
Transmitters/Receivers
ICL3221EM, ICL3221EF
The Intersil ICL3221EM and ICL3221EF devices are 3.3V
powered RS-232 transmitters/receivers which meet ElA/TIA-232
and V.28/V.24 specifications. Additionally, they provide ±15kV
ESD protection (IEC61000-4-2 Air Gap and Human Body Model)
on transmitter outputs and receiver inputs (RS-232 pins).
Efficient on-chip charge pumps, coupled with manual and
automatic power-down 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 250kbps are guaranteed at worst
case load conditions. These devices are fully compatible with
3.3V-only systems.
The ICL3221EM and ICL3221EF feature an automatic power-
down 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. These devices power up again when a valid
RS-232 voltage is applied to any receiver input.
Table 1
summarizes the features of the ICL3221EM and
ICL3221EF.
Related Literature
• For a full list of related documents, visit our web page
- ICL3221EM product page
- ICL3221EF
product page
Features
• ESD protection for RS-232 I/O pins to ±15kV (IEC61000)
• RS-232 compatible with V
CC
= 2.7V
• 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
• Manual and automatic power-down features
• Receiver hysteresis for improved noise immunity
• Guaranteed minimum data rate . . . . . . . . . . . . . . . . 250kbps
• Power supply range . . . . . . . . . . . . . . . . single +3.0V to +3.6V
• Low supply current in power-down state. . . . . . . . . . . . . . 1µA
• Pb-free (RoHS compliant)
Applications
• Any system requiring RS-232 communication ports
- Battery powered, hand-held, and portable equipment
- Modems, printers, and other peripherals
TABLE 1. SUMMARY OF FEATURES
PART
NUMBER
NUMBER OF
Tx
NUMBER OF
Rx
DATA RATE
(kbps)
RECEIVER ENABLE
FUNCTION?
READY
OUTPUT? MANUAL POWER-DOWN?
AUTOMATIC POWER-
DOWN FUNCTION?
ICL3221EM 1 1 250 Yes No Yes Yes
ICL3221EF 1 1 250 Yes No Yes Yes
October 13, 2016
FN7552.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Copyright Intersil Americas LLC 2009, 2016. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
ICL3221EM, ICL3221EF
2
FN7552.1
October 13, 2016
Submit Document Feedback
Ordering Information
PART NUMBER
(Notes 3
, 4)
PART
MARKING
TEMP RANGE
(°C)
PACKAGE
(RoHS COMPLIANT)
PKG.
DWG. #
ICL3221EMVZ (Note 1) 3221 EMVZ -55 to +125 16 Ld TSSOP M16.173
ICL3221EFVZ (Note 2
) 3221 EFVZ -40 to +125 16 Ld TSSOP M16.173
NOTES:
1. Add “-T” suffix for 2.5k unit tape and reel option. Refer to TB347
for details on reel specifications.
2. Add “-T” suffix for 2.5k unit or “-T7A” suffix for 250 unit tape and reel options. Please refer to TB347
for details on reel specifications.
3. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and 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-020.
4. For Moisture Sensitivity Level (MSL), see device information page for ICL3221EM
, ICL3221EF. For more information on MSL, see techbrief TB363.
Pin Configuration
ICL3221EM, ICL3221EF
(16 LD TSSOP)
TOP VIEW
EN
C1+
V+
C1-
C2+
C2-
V-
R1IN
FORCEOFF
GND
T1OUT
FORCEON
T1IN
R1OUT
VCC
INVALID
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
ICL3221EM, ICL3221EF
3
FN7552.1
October 13, 2016
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Pin Descriptions
PIN
PIN
NUMBER FUNCTION
EN 1 Active low receiver enable control
C1+ 2 External capacitor (voltage doubler) is connected to this lead.
V+ 3 Internally generated positive transmitter supply (+5.5V).
C1- 4 External capacitor (voltage doubler) is connected to this lead.
C2+ 5 External capacitor (voltage inverter) is connected to this lead.
C2- 6 External capacitor (voltage inverter) is connected to this lead.
V- 7 Internally generated negative transmitter supply (-5.5V).
R1IN 8 ±15kV ESD protected, RS-232 compatible receiver inputs.
R1OUT 9 TTL/CMOS level receiver outputs.
INVALID
10 Active low output that indicates if no valid RS-232 levels are present on any receiver input.
T1IN 11 TTL/CMOS compatible transmitter Inputs.
FORCEON 12 Active high input to override automatic power-down circuitry thereby keeping transmitters active (FORCEOFF
must be
high).
T1OUT 13 ±15kV ESD protected, RS-232 level (nominally ±5.5V) transmitter outputs.
GND 14 Ground connection.
VCC 15 System power supply input (3.0V to 3.6V).
FORCEOFF
16 Active low to shut down transmitters and on-chip power supply. This overrides any automatic circuitry and FORCEON (see
Table 2 on page 7
).
Typical Operating Circuit
FIGURE 1. TYPICAL OPERATING CIRCUIT
15
V
CC
T1
OUT
T1
IN
T
1
0.1µF
+
0.1µF
+
0.1µF
11
13
2
4
3
7
V+
V-
C1+
C1-
C2+
C2-
+
0.1µF
5
6
R1
OUT
R1
IN
R
1
89
5kΩ
C
1
C
2
+
C
3
C
4
EN
1
GND
+3.3V
+
0.1µF
14
TTL/CMOS
LOGIC LEVELS
RS-232
LEVELS
FORCEON
FORCEOFF
12
16
V
CC
10
INVALID
TO POWER
CONTROL LOGIC
ICL3221EM, ICL3221EF
P1-P3P4-P6P7-P9P10-P12P13-P13

ICL3221EMVZ

Mfr. #:
Buy ICL3221EMVZ
Manufacturer:
Renesas / Intersil
Description:
RS-232 Interface IC RS232 3V 1D/1R 15KV AUTODWN MIL TEMP
Lifecycle:
New from this manufacturer.
Delivery:
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