Page 1
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For small orders, phone 1-800-835-8769.
General Description
The MAX3386E 3V-powered EIA/TIA-232 and V.28/V.24
is a communications interface with low power requirements, high data-rate capabilities, and enhanced electrostatic 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 VLpin that allows interoperation in mixed-logic voltage systems. Both input and
output logic levels are pin programmable through the
VLpin. 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
Features
♦ VLPin for Compatibility with Mixed-Voltage
Systems
♦ ±15kV ESD Protection on Rx Inputs and Tx Outputs
♦ Low 300µA Supply Current
♦ Guaranteed 250kbps Data Rate
♦ 1µA Low-Power Shutdown
♦ Meets EIA/TIA-232 Specifications Down to 3.0V
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
________________________________________________________________
Maxim Integrated Products
1
Typical Operating Circuit
19-1529; Rev 1; 10/99
PART
MAX3386ECUP
MAX3386EEUP -40°C to +85°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
20 TSSOP
20 TSSOP
Pin Configuration
Ordering Information
TOP VIEW
C1+
C1-
C2-
T1IN
T3IN
1
2
V+
3
4
MAX3386E
5
6
V-
7
8
9
10
20
SHDN
19
V
CC
18
GND
17
T1OUTC2+
16
T2OUT
15
T3OUT
14
R1IN
13
R2INT2IN
12
V
L
11
R1OUTR2OUT
+3.3V
C
BYPASS
C1
0.1µF
C2
0.1µF
TTL/CMOS
INPUTS
TTL/CMOS
OUTPUTS
20
SHDN
1
C1+
3
C1-
4
C2+
5
C2-
7
T1IN
T2IN
8
T3IN
9
11
R1OUT
R2OUT10
MAX3386E
19
V
GND
12
V
CC
L
2
V+
V-
T1OUT
T2OUT
T3OUT
V
L
R1IN
V
18
5k
L
R2IN
5k
C3
0.1µF
6
C4
0.1µF
17
RS-232
16
OUTPUTS
15
14
RS-232
INPUTS
13
TSSOP
Page 2
I
OUT
= -1mA
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(VCC= VL= +3.0V to +5.5V; C1–C4 = 0.1µF, tested at +3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF, tested at +5.0V ±10%; TA=
T
MIN
to T
MAX
; unless otherwise noted. Typical values are at VCC= VL= +3.3V, TA= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
V
CC
to GND..............................................................-0.3V to +6V
V
L
to GND...................................................-0.3V to (VCC+ 0.3V)
V+ to GND................................................................-0.3V to +7V
V- to GND .................................................................+0.3V to -7V
V+ + V-(Note 1) .............................................................. +13V
Input Voltages
T_IN, SHDN to GND ...........................................-0.3V to +6V
R_IN to GND ..................................................................±25V
Output Voltages
T_OUT to GND............................................................±13.2V
R_OUT.....................................................-0.3V to (V
L
+ 0.3V)
Short-Circuit Duration T_OUT to GND........................Continuous
Continuous Power Dissipation (T
A
= +70°C)
20-Pin TSSOP (derate 7.0mW/°C above +70°C) .......559mW
Operating Temperature Ranges
MAX3386ECUP.................................................0°C to +70°C
MAX3386EEUP ..............................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
I
OUT
= 1.6mA
R_OUT, receivers disabled
T_IN, SHDN
T_IN, SHDN
SHDN = GND, all inputs at VCCor GND
SHDN = VCC, no load
CONDITIONS
V0.4Output Voltage Low
µA±0.05 ±10Output Leakage Currents
µA±0.01 ±1Input Leakage Current
V0.5Transmitter Input Hysteresis
V
0.9
Input Logic Threshold High
1.4
2.0
2.4
V
0.8
110µAShutdown Supply Current
mA0.3 1Supply Current
UNITSMIN TYP MAXSYMBOLPARAMETER
VL= 5.0V
VL= 3.3V
VL= 2.5V
VL= 1.8V
I
OUT
= -1mA V
VL- VL-
0.6 0.1
Output Voltage High
VL= 3.3V or 5.0V
T_IN, SHDN
0.6
Input Logic Threshold Low
VL= 2.5V
V-25 +25Input Voltage Range
TA= +25°C V
0.8 1.2
Input Threshold Low
0.6 1.5
VL= 5.0V
VL= 2.5V or 3.3V
TA= +25°C V
1.8 2.4
Input Threshold High
1.5 2.4
VL= 5.0V
VL= 2.5V or 3.3V
V0.5Input Hysteresis
357TA= +25°C kΩInput Resistance
DC CHARACTERISTICS (VCC= +3.3V or +5V, TA= +25°C)
LOGIC INPUTS
RECEIVER OUTPUTS
RECEIVER INPUTS
Page 3
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
_______________________________________________________________________________________ 3
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC= VL= +3.0V to +5.5V; C1–C4 = 0.1µF, tested at +3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF, tested at +5.0V ±10%; TA=
T
MIN
to T
MAX
; unless otherwise noted. Typical values are at VCC= VL= +3.3V, TA= +25°C.)
TIMING CHARACTERISTICS
(VCC= VL= +3V to +5.5V; C1–C4 = 0.1µF, tested at +3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF, tested at +5.0V ±10%; TA= T
MIN
to T
MAX
; unless otherwise noted. Typical values are at VCC= VL= +3.3V, TA= +25°C.)
IEC 1000-4-2 Air-Gap Discharge method
Human Body Model
V
T_OUT
= ±12V, transmitters disabled;
VCC= 0 or 3.0V to 5.5V
V
T_OUT
= 0
VCC= V+ = V- = 0, transmitter output = ±2V
All transmitter outputs loaded with 3kΩ to
ground
CONDITIONS
±15
±15
µA±25Output Leakage Current
mA±60Output Short-Circuit Current
Ω300 10MOutput Resistance
V±5 ±5.4Output Voltage Swing
UNITSMIN TYP MAXSYMBOLPARAMETER
RL= 3kΩ, CL= 1000pF,
one transmitter switching
(Note 2)
V
T_OUT
> 3.7V
Receiver input to receiver output,
C
L
= 150pF
CONDITIONS
630
ns50
t
PHL
- t
PLH
Receiver Skew
ns100
t
PHL
- t
PLH
Transmitter Skew
µs100Time to Exit Shutdown
ns200Receiver Output Disable Time
ns200Receiver Output Enable Time
µs
0.15t
PLH
Receiver Propagation Delay
kbps250Maximum Data Rate
0.15t
PHL
UNITSMIN TYP MAXSYMBOLPARAMETER
IEC 1000-4-2 Contact Discharge method
kV
±8
R_IN, T_OUT
ESD Protection
VCC= 3.3V,
TA= +25°C,
RL= 3kΩ to 7kΩ,
measured from +3V
to -3V or -3V to +3V
V/µs
430
Transition-Region Slew
Rate
CL= 150pF to
1000pF
CL= 150pF to
2500pF
Note 2: Transmitter skew is measured at the transmitter zero crosspoint.
RECEIVER INPUTSTRANSMITTER OUTPUTS
ESD PROTECTION
Page 4
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
4 _______________________________________________________________________________________
Typical Operating Characteristics
(VCC= VL= +3.3V, TA = +25°C, unless otherwise noted.)
-7.5
-5.0
-2.5
0
2.5
5.0
7.5
0 1000 2000 3000 4000 5000
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX3386E toc 01
LOAD CAPACITANCE (pF)
OUTPUT VOLTAGE (V)
DATA RATE = 250kbps
LOAD = 3kΩ IN PARALLEL WITH C
L
0
2
4
6
8
10
12
14
16
0 1000 2000 3000 4000 5000
SLEW RATE vs. LOAD CAPACITANCE
MAX3386E toc 02
LOAD CAPACITANCE (pF)
SLEW RATE (V/µs)
SLEW RATE +
SLEW RATE -
-7.5
-5.0
-2.5
0
2.5
5.0
7.5
0 50 100 150 200 250
TRANSMITTER OUTPUT VOLTAGE
vs. DATA RATE
MAX3386E toc 03
DATA RATE (kbps)
OUTPUT VOLTAGE (V)
LOAD = 3kΩ, 1000pF
ONE TRANSMITTER
SWITCHING AT DATA
RATE, OTHER
TRANSMITTERS
AT 1/8 DATA RATE
0
10
20
30
40
50
60
0 1000 2000 3000 4000 5000
SUPPLY CURRENT vs. LOAD CAPACITANCE
MAX3386E toc 04
LOAD CAPACITANCE (pF)
SUPPLY CURRENT (mA)
250kbps
120kbps
20kbps
LOAD = 3kΩ,
ONE TRANSMITTER
SWITCHING AT DATA
RATE, OTHER
TRANSMITTERS
AT 1/8 DATA RATE
Page 5
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
_______________________________________________________________________________________ 5
1 C1+ Positive Terminal of the Voltage-Doubler Charge-Pump Capacitor
Pin Description
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
9 T3IN
TTL/CMOS Transmitter Inputs
10 R2OUT
11 R1OUT
12 V
L
Logic-Level Supply. All CMOS inputs and outputs are referenced to this supply.
13 R2IN
14 R1IN
15 T3OUT
16 T2OUT
17 T1OUT
RS-232 Transmitter Outputs
18 GND Ground
19 V
CC
+3.0V to +5.5V Supply Voltage
20
SHDN
Shutdown Input. 0 = shutdown, 1 = normal operation.
NAME FUNCTIONPIN
TTL/CMOS Receiver Outputs. Swing between 0 and VL.
RS-232 Receiver Inputs
Page 6
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
6 _______________________________________________________________________________________
Detailed Description
Dual Charge-Pump
Voltage Converter
The MAX3386E’s internal power supply consists of a
regulated dual charge pump that provides output voltages of +5.5V (doubling charge pump) and -5.5V
(inverting charge pump), regardless of the input voltage
(VCC) over a +3.0V to +5.5V range. The charge pumps
operate in a discontinuous mode: if the output voltages
are less than 5.5V, the charge pumps are enabled; if
the output voltages exceed 5.5V, the charge pumps are
disabled. Each charge pump requires a flying capacitor
(C1, C2) and a reservoir capacitor (C3, C4) to generate
the V+ and V- supplies.
RS-232 Transmitters
The transmitters are inverting level translators that convert
CMOS-logic levels to 5.0V EIA/TIA-232 levels.
The MAX3386E’s transmitters guarantee a 250kbps data
rate with worst-case loads of 3kΩ in parallel with 1000pF,
providing compatibility with PC-to-PC communication
software (such as LapLink™). Transmitters can be paralleled to drive multiple receivers or mice. Figure 1 shows a
complete system connection.
These RS-232 output stages are turned off (high
impedance) when the device is in shutdown mode.
When the power is off, the MAX3386E permits the outputs
to be driven up to ±12V.
The transmitter inputs do not have pull-up resistors.
Connect unused inputs to GND or V
L
.
RS-232 Receivers
The receivers convert RS-232 signals to CMOS-logic
output levels. The MAX3386E’s receivers have inverting
three-state outputs, which depend on the shutdown
state of the device.
Shutdown Mode
Supply current falls to less than 1µA when the MAX3386E
is placed in shutdown mode (SHDN logic low). When
shut down, the device’s charge pumps are turned off, V+
decays to VCC, V- is pulled to ground, and the transmitter
outputs are disabled (high impedance). The time
required to exit shutdown is typically 100µs, as shown in
Figure 2. Connect SHDN to VCCif the shutdown mode
is not used. In shutdown mode, the receiver outputs are
high impedance (Table 1).
Figure 1. Interface Under Control of PMU
LapLink is a trademark of Traveling Software.
Figure 2. Transmitter Outputs when Exiting Shutdown
Table 1. Shutdown Logic Truth Table
TRANSMITTER
OUTPUTS
InactiveL High-Z
CHARGE
PUMP
ActiveH ActiveActive
High-Z
SHDN
RECEIVER
OUTPUTS
POWER-
MANAGEMENT
UNIT OR
KEYBOARD
CONTROLLER
I/O CHIP
POWER SUPPLY
SHDN
V
L
V
CC
I/O
CHIP
WITH
UART
CPU
MAX3386E
RS-232
5V/div
2V/div
VCC = 3.3V
C1–C4 = 0.1µF
50µs/div
T2
T1
Page 7
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
_______________________________________________________________________________________ 7
VLLogic Supply Input
Unlike other RS-232 interface devices where the receiver
outputs swing between 0 and VCC, the MAX3386E features a separate logic supply input (VL) that sets V
OH
for the receiver outputs and sets thresholds for the
receiver inputs. This feature allows a great deal of flexibility in interfacing to many different types of systems
with different logic levels. Connect this input to the host
logic supply (1.8V ≤ VL≤ VCC). Also see the
Typical
PDA/Cell-Phone Application
section.
±15kV ESD Protection
As with all Maxim devices, ESD-protection structures are
incorporated on all pins to protect against electrostatic
discharges (ESDs) encountered during handling and
assembly. The MAX3386E’s driver outputs and receiver
inputs have extra protection against static electricity.
Maxim has developed state-of-the-art structures to protect these pins against an ESD of ±15kV without damage.
The ESD structures withstand high ESD in all states: normal operation, shutdown, and powered down. After an
ESD event, Maxim’s “E” version devices keep working
without latchup, whereas competing RS-232 products
can latch and must be powered down to remove latchup.
ESD protection can be tested in various ways. The transmitter outputs and receiver inputs of this product family
are characterized for protection to the following limits:
1) ±15kV using the Human Body Model
2) ±8kV using the Contact Discharge method specified
in IEC 1000-4-2
3) ±15kV using IEC 1000-4-2’s Air-Gap Discharge
method
ESD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents
test setup, methodology, and results.
Human Body Model
Figure 3a shows the Human Body Model, and Figure 3b
shows the current waveform it generates when discharged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of interest,
which is then discharged into the test device through a
1.5kΩ resistor.
IEC 1000-4-2
The IEC 1000-4-2 standard covers ESD testing and
performance of finished equipment; it does not specifically refer to ICs. The MAX3386E helps you design
equipment that meets Level 4 (the highest level) of IEC
1000-4-2, without the need for additional ESD-protection
components.
The major difference between tests done using the
Human Body Model and IEC 1000-4-2 is higher peak
current in IEC 1000-4-2, because series resistance is
lower in the IEC 1000-4-2 model. Hence, the ESD withstand voltage measured to IEC 1000-4-2 is generally
lower than that measured using the Human Body
Model. Figure 4a shows the IEC 1000-4-2 model, and
Figure 4b shows the current waveform for the ±8kV IEC
1000-4-2 Level 4 ESD Contact-Discharge test.
The air-gap test involves approaching the device with a
charged probe. The contact-discharge method connects
the probe to the device before the probe is energized.
Figure 3a. Human Body ESD Test Model
Figure 3b. Human Body Current Waveform
R
C
1M
CHARGE-CURRENT
LIMIT RESISTOR
HIGH-
VOLTAGE
DC
SOURCE
IP 100%
90%
AMPERES
36.8%
10%
0
C
s
100pF
0
t
RL
R
D
Ω
1500
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
I
r
TIME
t
DL
CURRENT WAVEFORM
DEVICE
UNDER
TEST
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
Page 8
Machine Model
The Machine Model for ESD tests all pins using a
200pF storage capacitor and zero discharge resistance. Its objective is to emulate the stress caused by
contact that occurs with handling and assembly during
manufacturing. All pins require this protection during
manufacturing, not just RS-232 inputs and outputs.
Therefore, after PC board assembly, the Machine
Model is less relevant to I/O ports.
__________Applications Information
Capacitor Selection
The capacitor type used for C1–C4 is not critical for
proper operation; polarized or nonpolarized capacitors
can be used. The charge pump requires 0.1µF capacitors
for 3.3V operation. For other supply voltages, see
Table 2 for required capacitor values. Do not use values
smaller than those listed in Table 2. Increasing the
capacitor values (e.g., by a factor of 2) reduces ripple
on the transmitter outputs and slightly reduces power
consumption. C2, C3, and C4 can be increased without
changing C1’s value. However, do not increase C1
without also increasing the values of C2, C3, and C4 to
maintain the proper ratios (C1 to the other capacitors).
When using the minimum required capacitor values,
make sure the capacitor value does not degrade
excessively with temperature. If in doubt, use capacitors
with a larger nominal value. The capacitor’s equivalent
series resistance (ESR), which usually rises at low temperatures, influences the amount of ripple on V+ and V-.
Power-Supply Decoupling
In most circumstances, a 0.1µF bypass capacitor is
adequate. In applications that are sensitive to powersupply noise, decouple VCCto ground with a capacitor of
the same value as charge-pump capacitor C1. Connect
bypass capacitors as close to the IC as possible.
Operation Down to 2.7V
Transmitter outputs will meet EIA/TIA-562 levels of
±3.7V with supply voltages as low as +2.7V.
Transmitter Outputs when
Exiting Shutdown
Figure 2 shows two transmitter outputs when exiting
shutdown mode. As they become active, the two
transmitter outputs are shown going to opposite RS-232
levels (one transmitter input is high; the other is low).
Each transmitter is loaded with 3kΩ in parallel with
2500pF. The transmitter outputs display no ringing or
undesirable transients as they come out of shutdown.
Note that the transmitters are enabled only when the
magnitude of V- exceeds approximately 3V.
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
8 _______________________________________________________________________________________
Figure 4a. IEC 1000-4-2 ESD Test Model
Figure 4b. IEC 1000-4-2 ESD Generator Current Waveform
V
CC
(V)
0.10.1
C2, C3, C4
(µF)
3.0 to 3.6
0.330.047
10.223.0 to 5.5
4.5 to 5.5
C1
(µF)
Table 2. Minimum Required Capacitor
Values
R
C
HIGH-
VOLTAGE
DC
SOURCE
50M to 100M
CHARGE-CURRENT
LIMIT RESISTOR
C
150pF
s
330
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
I
100%
90%
PEAK
I
10%
RD
Ω
DEVICE
UNDER
TEST
tR = 0.7ns to 1ns
30ns
60ns
t
Page 9
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
High Data Rates
The MAX3386E maintains the RS-232 ±5.0V minimum
transmitter output voltage even at high data rates.
Figure 5 shows a transmitter loopback test circuit. Figure 6
shows a loopback test result at 120kbps, and Figure 7
shows the same test at 250kbps. For Figure 6, all transmitters were driven simultaneously at 120kbps into RS-232
loads in parallel with 1000pF. For Figure 7, a single transmitter was driven at 250kbps, and all transmitters were
loaded with an RS-232 receiver in parallel with 1000pF.
Interconnection with
3V and 5V Logic
The MAX3386E can directly interface with various 5V
logic families, including ACT and HCT CMOS. The logic
voltage power-supply pin VLsets the output voltage
level of the receivers and the input thresholds of the
transmitters.
Typical PDA/Cell-Phone Application
The MAX3386E is designed with PDA applications in
mind. Two transmitters and two receivers handle standard full-duplex communication protocol, while an extra
transmitter allows a ring indicator (RI) signal to alert the
UART on the PC. Without the ring indicator transmitter,
solutions for these applications would require softwareintensive polling of the cradle inputs.
The RI signal is generated when a PDA, cellular phone, or
other “cradled” device is plugged into its cradle. This
generates a logic-low signal to RI transmitter input, creating +6V at the ring indicate pin. The PC’s UART RI input
is the only pin that can generate an interrupt from signals
arriving through the RS-232 port. The interrupt routine for
this UART will then service the RS-232 full-duplex communication between the PDA and the PC.
As cell phone design becomes more like that of PDAs,
cell phones will require similar docking ability and communication protocol. Cell phones operate on a single
lithium-ion (Li+) battery and work with a power-supply
voltage of +2.7V to +4V. The baseband logic coming
from the phone connector can be as low as 1.8V at the
transceivers. To prevent forward biasing of a device
internal to the cell phone, the MAX3386E comes with a
logic power-supply pin (VL) that limits the logic levels
presented to the phone. The receiver outputs will sink
to zero for low outputs, but will not exceed VLfor logic
highs. The input logic levels for the transmitters are also
altered, scaled by the magnitude of the VLinput. The
device will work with VLas low as 1.8V before the
charge-pump noise will begin to cause the transmitter
outputs to oscillate. This is useful with cell phones and
other power-efficient devices with core logic voltage
levels that go as low as 1.8V.
Figure 5. Loopback Test Circuit
Figure 6. Loopback Test Results at 120kbps
_______________________________________________________________________________________ 9
V
CC
0.1µF
V
C1+
C1
C2
V
CC
T1IN
T1OUT
R1OUT
C1-
C2+
C2-
T_ IN
R_ OUT
SHDN
VCC = 3.3V
CC
V+
MAX3386E
V-
T_ OUT
R_ IN
5k
GND
2µs/div
C3
C4
1000pF
5V/div
5V/div
5V/div
Page 10
Chip Information
TRANSISTOR COUNT: 1267
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
10 ______________________________________________________________________________________
Figure 7. Loopback Test Results at 250kbps
T1IN
T1OUT
R1OUT
VCC = 3.3V
2µs/div
5V/div
5V/div
5V/div
Page 11
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
______________________________________________________________________________________ 11
Package Information
TSSOP.EPS
Page 12
MAX3386E
3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12
____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
NOTES
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