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PDF MAX3386ECUP Data sheet ( Hoja de datos )
| Número de pieza | MAX3386ECUP | |
| Descripción | 3.0V / 15kV ESD-Protected RS-232 Transceiver for PDAs and Cell Phones | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-1529; Rev 1; 10/99
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
General Description
The MAX3386E 3V-powered EIA/TIA-232 and V.28/V.24
is a communications interface with low power require-
ments, high data-rate capabilities, and enhanced elec-
trostatic discharge (ESD) protection. The MAX3386E
has two receivers and three transmitters. All RS-232
inputs and outputs are protected to ±15kV using the
IEC 1000-4-2 Air-Gap Discharge method, ±8kV using the
IEC 1000-4-2 Contact Discharge method, and ±15kV
using the Human Body Model.
A proprietary low-dropout transmitter output stage
enables true RS-232 performance from a +3.0V to +5.5V
supply with a dual charge pump. The charge pump
requires only four small 0.1µF capacitors for operation
from a +3.3V supply. The MAX3386E is capable of
running at data rates up to 250kbps while maintaining
RS-232 compliant output levels.
The MAX3386E has a unique VL pin that allows interop-
eration in mixed-logic voltage systems. Both input and
output logic levels are pin programmable through the
VL pin. The MAX3386E is available in a space-saving
TSSOP package.
Applications
Subnotebook/Palmtop Computers
PDAs and PDA Cradles
Cell Phone Data Cables
Battery-Powered Equipment
Hand-Held Equipment
Peripherals
Pin Configuration
TOP VIEW
C1+ 1
V+ 2
C1- 3
C2+ 4
C2- 5
V- 6
T1IN 7
T2IN 8
T3IN 9
R2OUT 10
MAX3386E
20 SHDN
19 VCC
18 GND
17 T1OUT
16 T2OUT
15 T3OUT
14 R1IN
13 R2IN
12 VL
11 R1OUT
TSSOP
Features
o VL Pin for Compatibility with Mixed-Voltage
Systems
o ±15kV ESD Protection on Rx Inputs and Tx Outputs
o Low 300µA Supply Current
o Guaranteed 250kbps Data Rate
o 1µA Low-Power Shutdown
o Meets EIA/TIA-232 Specifications Down to 3.0V
PART
MAX3386ECUP
MAX3386EEUP
Ordering Information
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
20 TSSOP
20 TSSOP
Typical Operating Circuit
+3.3V
CBYPASS
C1
0.1µF
C2
0.1µF
20 19 12
1 C1+ SHDN
VCC
3 C1-
4 C2+
MAX3386E
5 C2-
VL 2
V+
6
V-
7 T1IN
T1OUT 17
TTL/CMOS
INPUTS
8 T2IN
9 T3IN
TTL/CMOS
OUTPUTS
11 R1OUT
10 R2OUT
VL
VL
GND
18
T2OUT 16
T3OUT 15
R1IN 14
5k
R2IN 13
5k
C3
0.1µF
C4
0.1µF
RS-232
OUTPUTS
RS-232
INPUTS
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1 page  
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
Pin Description
PIN NAME
FUNCTION
1
C1+
Positive Terminal of the Voltage-Doubler Charge-Pump Capacitor
2 V+ +5.5V Supply Generated by the Charge Pump
3 C1- Negative Terminal of the Voltage-Doubler Charge-Pump Capacitor
4
C2+
Positive Terminal of the Inverting Charge-Pump Capacitor
5 C2- Negative Terminal of the Inverting Charge-Pump Capacitor
6 V- -5.5V Generated by the Charge Pump
7 T1IN
8
T2IN
TTL/CMOS Transmitter Inputs
9 T3IN
10 R2OUT
TTL/CMOS Receiver Outputs. Swing between 0 and VL.
11 R1OUT
12 VL Logic-Level Supply. All CMOS inputs and outputs are referenced to this supply.
13 R2IN
RS-232 Receiver Inputs
14 R1IN
15 T3OUT
16
T2OUT
RS-232 Transmitter Outputs
17 T1OUT
18
GND
Ground
19 VCC +3.0V to +5.5V Supply Voltage
20
SHDN
Shutdown Input. 0 = shutdown, 1 = normal operation.
_______________________________________________________________________________________ 5
5 Page 
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
Package Information
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX3386ECUP.PDF ] | |
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