MAX3319ECAE+ Maxim Integrated Products, MAX3319ECAE+ Datasheet

IC TXRX RS232 460KBPS 16-SSOP

MAX3319ECAE+

Manufacturer Part Number
MAX3319ECAE+
Description
IC TXRX RS232 460KBPS 16-SSOP
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet

Specifications of MAX3319ECAE+

Number Of Drivers/receivers
2/2
Protocol
RS232
Voltage - Supply
2.25 V ~ 3 V
Mounting Type
Surface Mount
Package / Case
16-SSOP
Propagation Delay Time Ns
0.175 us
Operating Supply Voltage
2.5 V to 3 V
Supply Current
0.3 mA
Operating Temperature Range
0 C to + 70 C
Data Rate
460 Kbps
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
________________General Description
The MAX3316E–MAX3319E are 2.5V powered RS-232
compatible transceivers. These devices feature shut-
down (MAX3317E), AutoShutdown Plus™ (MAX3318E/
MAX3319E), and enhanced electrostatic discharge
(ESD) protection integrated into the chip. All transmitter
outputs and receiver inputs 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.
All devices are guaranteed at a data rate of 460kbps.
The transceivers have a proprietary low-dropout trans-
mitter output stage enabling RS-232 compatible opera-
tion from a +2.25V to +3.0V supply with a dual charge
pump. The charge pump requires only four 0.1µF
capacitors. The MAX3318E/MAX3319E feature a logic-
level output (READY) that asserts when the charge
pump is regulating and the device is ready to begin
transmitting.
The MAX3318E/MAX3319E achieve a 1µA supply current
using Maxim’s revolutionary AutoShutdown Plus feature.
These devices automatically enter a low-power shut-
down mode when the RS-232 cable is disconnected or
the transmitters of the connected peripherals are inactive
for more than 30 seconds. They turn on again when
they sense a valid transition at any transmitter or receiver
input. AutoShutdown Plus saves power without
changes to the existing BIOS or operating system. The
MAX3317E also features a 1µA shutdown mode that
can be entered by driving SHDN low. The MAX3317E’s
receivers remain active while in shutdown mode, allowing
external devices such as modems to be monitored
using only 1µA supply current.
These devices are available in space-saving packages:
MAX3316E (16-pin SSOP and 20-pin TSSOP), MAX3317E/
MAX3318E (20-pin SSOP and 20-pin TSSOP), and
MAX3319E (16-pin SSOP).
________________________Applications
19-1616; Rev 1; 6/00
Selector Guide and Typical Application Circuits appear at
end of data sheet.
AutoShutdown Plus is a trademark of Maxim Integrated Products.
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Palmtop Computers
Hand-Held Instruments
Pagers
Cellular Phones
GPS
Handy Terminals
Hand-Held Electronic Books
±15kV ESD-Protected, 2.5V, 1µA, 460kbps,
________________________________________________________________ Maxim Integrated Products
RS-232 Compatible Transceivers
o ESD Protection for RS-232 I/O Pins
o 300µA Operating Supply Current
o 1µA Low-Power Shutdown with Receivers Active
o Guaranteed 460kbps Data Rate
o Guaranteed 4V/µs Slew Rate
o RS-232 Compatible Down to 2.25V
____________________________Features
MAX3316ECUP
MAX3316ECAE
MAX3316EEUP
MAX3316EEAE
MAX3317ECUP
MAX3317ECAP
MAX3317EEUP
MAX3317EEAP
MAX3318ECUP
MAX3318ECAP
MAX3318EEUP
MAX3318EEAP
MAX3319ECAE
MAX3319EEAE
Pin Configurations continued at end of data sheet.
PART
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge
READY
T2OUT
R2OUT
R2IN
C1+
C2+
C1-
C2-
V+
V-
10
TEMP. RANGE
1
2
3
4
5
6
7
8
9
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
SSOP/TSSOP
Ordering Information
MAX3318E
Pin Configurations
20
19
18
17
16
15
14
13
12
11
FORCEOFF
V
GND
T1OUT
R1IN
R1OUT
FORCEON
T1IN
T2IN
INVALID
PIN-PACKAGE
20 TSSOP
16 SSOP
20 TSSOP
16 SSOP
20 TSSOP
20 SSOP
20 TSSOP
20 SSOP
20 TSSOP
20 SSOP
20 TSSOP
20 SSOP
16 SSOP
16 SSOP
CC
1

Related parts for MAX3319ECAE+

MAX3319ECAE+ Summary of contents

Page 1

... Handy Terminals Hand-Held Electronic Books Selector Guide and Typical Application Circuits appear at end of data sheet. AutoShutdown Plus is a trademark of Maxim Integrated Products. ________________________________________________________________ Maxim Integrated Products For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. ...

Page 2

ESD-Protected, 2.5V, 1µA, 460kbps, RS-232 Compatible Transceivers ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0. GND (Note 1) ..................................................-0. GND (Note 1) ...................................................-7V to +0. |V-| (Note 1) .................................................................+13V ...

Page 3

ESD-Protected, 2.5V, 1µA, 460kbps, ELECTRICAL CHARACTERISTICS (continued +2.25V to +3.0V, C1–C4 = 0.1µ +25°C.) A PARAMETER SYMBOL Output Resistance Output Short-Circuit Current Output Leakage Current ESD PROTECTION R_IN, T_OUT AutoShutdown Plus (FORCEON = ...

Page 4

ESD-Protected, 2.5V, 1µA, 460kbps, RS-232 Compatible Transceivers TIMING CHARACTERISTICS (continued +2.25V to +3.0V, C1–C4 = 0.1µ +25°C.) A PARAMETER SYMBOL Transition-Region Slew Rate Note 2: A transmitter/receiver edge is defined as a transition ...

Page 5

ESD-Protected, 2.5V, 1µA, 460kbps +2.5V, C1–C4 = 0.1µF, 460kbps data rate, all transmitters loaded with 3kΩ MAX3316E/MAX3317E OPERATING SUPPLY CURRENT vs. LOAD CAPACITANCE 35 T1 TRANSMITTING AT SPECIFIED DATA RATE T2 TRANSMITTING AT 20kbps 30 ...

Page 6

ESD-Protected, 2.5V, 1µA, 460kbps, RS-232 Compatible Transceivers (V = +2.5V, C1–C4 = 0.1µF, 460kbps data rate, all transmitters loaded with 3kΩ TRANSMITTER SKEW vs. ) LOAD CAPACITANCE ( PLH PHL 500 T1 TRANSMITTING AT 460kbps ...

Page 7

ESD-Protected, 2.5V, 1µA, 460kbps, PIN MAX3316E MAX3317E MAX3318E MAX3319E SSOP TSSOP — 20 — — — — — — — — Detailed Description Dual Charge-Pump Voltage Converter The MAX3316E–MAX3319Es’ internal power supply consists of a regulated dual charge pump ...

Page 8

ESD-Protected, 2.5V, 1µA, 460kbps, RS-232 Compatible Transceivers Table 1. Output Control Truth Table (MAX3318E/MAX3319E) OPERATION FORCEON STATUS Shutdown (Forced X Off) Normal Operation 1 (Forced On) Normal Operation 0 (AutoShutdown Plus) Shutdown 0 (AutoShutdown Plus) INVALID* Normal Operation INVALID* ...

Page 9

ESD-Protected, 2.5V, 1µA, 460kbps, +2.5V C 0.1µF BYPASS C1+ C1 0.1µF C1- MAX3316E MAX3317E C2+ MAX3318E C2 0.1µF MAX3319E C2 OUT Figure 1a. RS-232 Compatibility Circuit 5V/div 5V/div 5V/div Figure 1b. MAX3316E–MAX3319E Transmitter Output Compatibility with ...

Page 10

ESD-Protected, 2.5V, 1µA, 460kbps, RS-232 Compatible Transceivers By connecting FORCEON to INVALID, the MAX3318E/ MAX3319E shut down when no valid receiver level is detected and wake up when a valid receiver level is detected. A system with AutoShutdown Plus ...

Page 11

ESD-Protected, 2.5V, 1µA, 460kbps, RECEIVER INPUTS TRANSMITTER INPUTS TRANSMITTER OUTPUTS V INVALID CC t INVL OUTPUT t INVH OUTPUT MAX3318E/MAX3319E Figure 4b. AutoShutdown Plus, INVALID , and READY Timing Diagram ...

Page 12

ESD-Protected, 2.5V, 1µA, 460kbps, RS-232 Compatible Transceivers The IEC 1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifi- cally refer to ICs. The MAX3316E–MAX3319E help you design equipment that meets Level 4 (the highest ...

Page 13

ESD-Protected, 2.5V, 1µA, 460kbps, 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 capaci- tors. Increasing the capacitor values (e.g ...

Page 14

ESD-Protected, 2.5V, 1µA, 460kbps, RS-232 Compatible Transceivers TOP VIEW N. GND C2 T1OUT C2- 6 MAX3316E C2 R1IN ...

Page 15

ESD-Protected, 2.5V, 1µA, 460kbps, NO. OF DRIVERS/ PART RECEIVERS MAX3316E 2/2 MAX3317E 2/2 MAX3318E 2/2 MAX3319E 1/1 +2.5V 19 0.1µ C1 0.1µF C1- MAX3317E 5 C2 0.1µF C2- 13 T1IN CMOS INPUTS ...

Page 16

... 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. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Typical Application Circuits (continued) +2 ...

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