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PDF MAX13088E Data sheet ( Hoja de datos )

Número de pieza MAX13088E
Descripción (MAX13080E - MAX13089E) RS-485/RS-422 Transceivers
Fabricantes Maxim Integrated Products 
Logotipo Maxim Integrated Products Logotipo



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MAX13080E–MAX13084E/
AVAILABLE
MAX13086E–MAX13089E
+5.0V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
General Description
The MAX13080E–MAX13089E +5.0V, ±15kV ESD-protect-
ed, RS-485/RS-422 transceivers feature one driver and
one receiver. These devices include fail-safe circuitry,
guaranteeing a logic-high receiver output when receiver
inputs are open or shorted. The receiver outputs a logic-
high if all transmitters on a terminated bus are disabled
(high impedance). The MAX13080E family include a hot-
swap capability to eliminate false transitions on the bus
during power-up or hot insertion.
The MAX13080E/MAX13081E/MAX13082E feature
reduced slew-rate drivers that minimize EMI and
reduce reflections caused by improperly terminated
cables, allowing error-free data transmission up to
250kbps. The MAX13083E/MAX13084E also feature
slew-rate-limited drivers but allow transmit speeds up to
500kbps. The MAX13086E/MAX13087E/ MAX13088E
driver slew rates are not limited, making transmit
speeds up to 16Mbps possible. The MAX13089E slew
rate is pin selectable for 250kbps, 500kbps, and
16Mbps.
The MAX13082E/MAX13088E are intended for half-
duplex communications, and the MAX13080E/
MAX13081E/MAX13083E/MAX13084E/MAX13086E/
MAX13087E are intended for full-duplex communica-
tions. The MAX13089E is selectable for half-duplex or
full-duplex operation. It also features independently
programmable receiver and transmitter output phase
through separate pins.
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the drivers disabled. All devices have a 1/8-unit load
receiver input impedance, allowing up to 256 trans-
ceivers on the bus.
The MAX13080E/MAX13083E/MAX13086E/MAX13089E
are available in 14-pin PDIP and 14-pin SO packages. The
MAX13081E/MAX13082E/MAX13084E/MAX13087E/
MAX13088E are available in 8-pin PDIP and 8-pin SO
packages. The devices operate over the commercial,
extended, and automotive temperature ranges.
Applications
Utility Meters
Lighting Systems
Industrial Control
Telecom
Security Systems
Pin Configurations appear at end of data sheet.
FunctionInasl Dtriuamgreanmtastcioonntinued at end of data sheet.
UCSP is Partorafidbeumsark of Maxim Integrated Products, Inc.
Features
o +5.0V Operation
o Extended ESD Protection for RS-485/RS-422 I/O Pins
±15kV Human Body Model
o True Fail-Safe Receiver While Maintaining
EIA/TIA-485 Compatibility
o Hot-Swap Input Structures on DE and RE
o Enhanced Slew-Rate Limiting Facilitates Error-
Free Data Transmission
(MAX13080E–MAX13084E/MAX13089E)
o Low-Current Shutdown Mode (Except
MAX13081E/MAX13084E/MAX13087E)
o Pin-Selectable Full-/Half-Duplex Operation
(MAX13089E)
o Phase Controls to Correct for Twisted-Pair
Reversal (MAX13089E)
o Allow Up to 256 Transceivers on the Bus
o Available in Industry-Standard 8-Pin SO Package
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX13080ECPD+
0°C to +70°C 14 PDIP
MAX13080ECSD+
0°C to +70°C 14 SO
MAX13080EEPD+ -40°C to +85°C 14 PDIP
MAX13080EESD+ -40°C to +85°C 14 SO
MAX13080EAPD+ -40°C to +125°C 14 PDIP
MAX13080EASD+ -40°C to +125°C 14 SO
+Denotes a lead(Pb)-free/RoHS-compliant package.
Ordering Information continued at end of data sheet.
Selector Guide, Pin Configurations, and Typical Operating
Circuits appear at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-3590; Rev 2; 11/11

1 page




MAX13088E pdf
MAX13080E–MAX13084E/
MAX13086E–MAX13089E
+5.0V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
DRIVER SWITCHING CHARACTERISTICS
MAX13083E/MAX13084E/MAX13089E WITH SRL = VCC (500kbps)
(VCC = +5.0V ±10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA = +25°C.)
PARAMETER
Driver Propagation Delay
Driver Differential Output Rise or
Fall Time
SYMBOL
tDPLH
tDPHL
CONDITIONS
CL = 50pF, RL = 54Ω, Figures 2 and 3
tR , tF CL = 50pF, RL = 54Ω, Figures 2 and 3
MIN TYP MAX
200 1000
200 1000
250 900
Differential Driver Output Skew
|tDPLH - tDPHL|
Maximum Data Rate
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Driver Enable from Shutdown to
Output High
tDSKEW CL = 50pF, RL = 54Ω, Figures 2 and 3
tDZH
tDZL
tDLZ
tDHZ
Figure 4
Figure 5
Figure 5
Figure 4
tDZH(SHDN) Figure 4
500
140
2500
2500
100
100
5500
Driver Enable from Shutdown to
Output Low
Time to Shutdown
tDZL(SHDN) Figure 5
tSHDN
5500
50 340 700
UNITS
ns
ns
ns
kbps
ns
ns
ns
ns
ns
ns
ns
RECEIVER SWITCHING CHARACTERISTICS
MAX13083E/MAX13084E/MAX13089E WITH SRL = VCC (500kbps)
(VCC = +5.0V ±10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA = +25°C.)
PARAMETER
Receiver Propagation Delay
Receiver Output Skew
|tRPLH - tRPHL|
Maximum Data Rate
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from Low
Receiver Disable Time from High
Receiver Enable from Shutdown
to Output High
SYMBOL
tRPLH
tRPHL
CONDITIONS
CL = 15pF, Figures 6 and 7
tRSKEW CL = 15pF, Figures 6 and 7
tRZL
tRZH
tRLZ
tRHZ
Figure 8
Figure 8
Figure 8
Figure 8
tRZH(SHDN) Figure 8
MIN TYP MAX
200
200
30
500
50
50
50
50
5500
Receiver Enable from Shutdown
to Output Low
Time to Shutdown
tRZL(SHDN) Figure 8
tSHDN
5500
50 340 700
UNITS
ns
ns
kbps
ns
ns
ns
ns
ns
ns
ns
Maxim Integrated
5

5 Page





MAX13088E arduino
MAX13080E–MAX13084E/
MAX13086E–MAX13089E
+5.0V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
Test Circuits and Waveforms (continued)
B RECEIVER
ATE VID
OUTPUT
R
A
Figure 6. Receiver Propagation Delay Test Circuit
A
B
VOH
VOL VCC/2
RO
tRPLH
THE RISE TIME AND FALL TIME OF INPUTS A AND B < 4ns
Figure 7. Receiver Propagation Delays
+1V
-1V
tRPHL
+1.5V
-1.5V
S3
VID R
1kΩ
CL
15pF
S1
VCC
S2
GENERATOR
50Ω
RE
RO
RE
S1 OPEN
S2 CLOSED
S3 = +1.5V
S1 OPEN
S2 CLOSED
S3 = +1.5V
VCC/2
tRHZ
VCC
tRZH, tRZH(SHDN)
0
VOH
VOH / 2
0
VCC
0
0.25V
RO
Figure 8. Receiver Enable and Disable Times
VOH
0
Maxim Integrated
S1 CLOSED
S2 OPEN
S3 = -1.5V
VCC
VCC/2
RE
0
tRZL, tRZL(SHDN)
VCC
(VOL + VCC) / 2
RO
VOL
RE
tRLZ
S1 CLOSED
S2 OPEN
S3 = -1.5V
VCC/2
VCC
0
VCC
RO 0.25V
VOL
11

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