ZT232E Low Power 5V 250kbps RS232 Transceivers
Zywyn Corporation
ZT202E/232E/310E/312E
Zywyn
Features
ZT202E, ZT232E
ZT310E, ZT312E
Low Power 5V 250kbps RS232 Transceivers
General Description
The ZT232E series devices are +5V powered EIA/TIA-232
and CCITT V.28/V.24 communication interfaces with low
power requirements. These transceivers consist of two line
drivers, two line receivers and the proprietary switch-capaci-
tor regulated voltage converters. The ZT310E and ZT312E
feature a low power shutdown mode which draws as little
current as 1µA typical with receiver outputs tri-stated and in
wake-up. These devices operate from a single +5V power
supply at the guaranteed data rate of 250k bits/sec with
enhanced electrostatic discharge (ESD) protection in all
RS232 I/O pins exceeding ±15kV HBM.
• Meets EIA/TIA-232F and CCITT V.28/V.24 specifi-
cations for V
CC
at +5V ±10%
• Low Quiescent Current – 3mA typ., 5mA max.
• Low Shutdown Current (where applicable) - 1µA
typical, 5µA max.
• Guaranteed Standard Data Rate 250kbps
• Proprietary Switch-Capacitor Regulated Voltage
Converters (patent pending)
• Use Small 0.1µF Capacitors
• Wake Up Feature (where applicable) in Shutdown
Mode
• Tri-State Receiver Outputs
• Latch-up Free
• ESD Protection for RS-232 I/O's
±15kV Human Body Model (HBM)
• Drop-in Replacements for MAX202E, MAX232E,
SP202E, SP232E, SP310E, SP312E, ST202E,
ST232E, HIN202E, HIN232E, ADM202E,ADM232L
• High Data Rate at 1000kbps Available on ZT232F
Series
Applications
•
•
•
•
•
•
•
Single Power Supply Applications
Industrial and Embedded PCs
Set Top Boxes
Terminal Adapters
POS terminals
Peripherals Interface
Routers and HUBs
C1+
V+
C1-
C2+
C2-
V-
T
2
OUT
R
2
IN
1
2
3
4
5
6
7
8
16
Vcc
GND
T
1
OUT
R
1
IN
R
1
OUT
T
1
IN
T
2
IN
R
2
OUT
ZYWYN
ZT232E
15
14
13
12
11
10
9
16-pin PDIP/nSOIC/wSOIC/TSSOP
Now Available in Green Package Option
Product Selection Guide And Cross Reference
Part
Number
# 0f
# of
# of Rx
RS232 RS232 active in
Tx
Rx
SD
2
2
2
2
2
2
2
2
0
0
0
2
# of
0.1µF
caps
4
4
4
4
Shut
Down
Wake
Up
TTL
Tri-
State
No
No
Yes
Yes
Data
Rate
(kbps)
250
250
250
250
ESD
HBM on
RS232 I/O
± 15kV
± 15kV
± 15kV
± 15kV
Pin-to-Pin Cross Reference
AN003
Analog Devices, Intersil,
Maxim, Sipex, STmicro, TI
Sipex
ZT202E
ZT232E
ZT310E
ZT312E
No
No
Yes
Yes
No
No
No
Yes
Zywyn
Specifications subject to change without notice
1
Zywyn Corporation • Tel (408) 733-3225 • Fax (408) 733-3206 • Email sales@zywyn.com • www.zywyn.com
May 2005
rev. 03
PCB Design
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