SP3224E-SP3227E
Solved by
TM
3.0V to 5.5V RS-232 Transceivers with Auto On-Line® Plus
FEATURES
■ 15kV ESD protected RS-232 I/O pins
■ Auto On-line® Plus automatic power saving mode
■ Meets true EIA/TIA-232-F standards from +3.0V to
+5.5V power supply.
■ Adheres to EIA/TIA-562 for interoperability with
EIA/TIA-232 down to a +2.7V supply voltage
■ Regulated charge pump yields stable
RS-232 outputs
■ Drop-in replacement to MAX3224, ICL3224,
MAX3225, ICL3225, MAX3226, ICL3226,
MAX3227 and ICL3227
■ SP3224E and SP3225E reduced EMI with a slew
rate controlled 250kbps data rate
■ SP3226E and SP3227E- high speed data rate of
1 Mbps.
■ Available in RoHS compliant, Lead Free
Packaging
READY 1
C1+ 2
20 SHUTDOWN
19 VCC
18 GND
V+ 3
4
C2+ 5
C2- 6 SP3224E
SP3225E
V- 7
C1-
Solved by
TM
8
9
R2OUT 10
T2OUT
R2IN
17 T1OUT
16 R1IN
15 R1OUT
14 ONLINE
13 T1IN
12 T2IN
11 STATUS
TYPICAL APPLICATIONS
■ Diagnostic/Serial ports on
embedded applications
■ Handheld Test Equipment
■ PC related Peripherals and
Equipment
■ Battery Powered Equipment
■ Point-of-sale Equipment
■ Set-top Box
DESCRIPTION
The SP3224E/3225E are 2-driver/2-receiver devices and the SP3226E/SP3227E are 1driver/1-receiver devices. All are ideal for computer peripherals, point-of-sale equipment,
consumer and embedded applications. These devices use an internal high-efficiency,
charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This
charge pump and Sipex’s driver architecture allow it to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. At voltages between 2.7V
and 3.0V the driver outputs are compliant with RS-562 and can interface to RS-232 over
short cables.
The Auto On-line® Plus feature allows the device to automatically “wake-up” during a shutdown state upon detecting activity and to enter a low power shutdown if idle. This power
saving feature functions without system intervention or modifications to software or drivers.
SELECTION TABLE
All devices feature 3.0V to 5.5V power supply, 4 small charge pump capacitors, and 15kV ESD
protection.
Device
Data Rate (bps)
No. of
Drivers/Receivers
READY pin
Low-Power Shutdown
Package
SP3224E
250k
2/2
Yes
Auto On-Line® Plus
20 SSOP/TSSOP
SP3225E
1M
2/2
Yes
Auto On-Line® Plus
20 SSOP/TSSOP
SP3226E
250k
1/1
Yes
Auto On-Line® Plus
16 SSOP/TSSOP
SP3227E
1M
1/1
Yes
Auto On-Line® Plus
16 SSOP/TSSOP
Rev P 11/20/06
SP3224E-SP3227E Transceivers with Auto On-line
1
®
Plus
© 2006 Sipex Corporation
