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PDF MAX13184E Data sheet ( Hoja de datos )

Número de pieza MAX13184E
Descripción (MAX13181E - MAX13184E) RS-485 Transceiver
Fabricantes Maxim Integrated Products 
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19-0879; Rev 0; 7/07
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
General Description
The MAX13181E–MAX13184E are full-duplex and selec-
table half-/full-duplex RS-485 transceivers in a tiny 2mm x
2mm µDFN package. These devices are designed for
space-constrained applications by including extended
ESD protection to ±15kV per Human Body Model (HBM)
and integrating pullup/pulldown resistors on the DE, RE
and H/F inputs to reduce external components. The
MAX13182E/MAX13184E feature a low-current shutdown
mode for power-sensitive applications.
These devices have a 1/8 unit-load input receiver
that allows up to 256 transceivers on the bus. The
MAX13181E/MAX13182E feature reduced slew-rate
drivers to minimize EMI and reflections that are caused
by improperly terminated cables. The slew-rate limited
MAX13181E/MAX13182E allow error-free data transmis-
sion up to 250kbps. The MAX13183E/MAX13184E feature
full-speed drivers, allowing data rates of up to 16Mbps.
The MAX13182E/MAX13184E are configured for full-
duplex operation, while the MAX13181E/MAX13183E
feature pin-selectable half- or full-duplex operation. All
driver outputs and receiver inputs include extended
ESD protection.
The MAX13181E–MAX13184E are available in a tiny 10-
pin, 2mm x 2mm µDFN. The MAX13183E/MAX13184E are
also available in industry-standard 14-pin SO packages.
The devices operate over the extended -40°C to +85°C
temperature range.
Applications
Industrial Control
Motor Drive Control
Telecom
Security System
Instrumentation
Features
Available in Tiny, 10-Pin, 2mm x 2mm, µDFN and
14-Pin SO Packages
+5.0V Operation
Extended ESD Protection
±15kV Human Body Model
±12kV IEC 61000-4-2 Air-Gap Disharge
±6kV IEC 61000-4-2 Contact Disharge
Slew-Rate Limiting Facilitates Error-Free Data
Transmission (MAX13181E/MAX13182E)
2.5µA (typ) Low-Current Shutdown Mode
1/8-Unit Load Allows Up to 256 Transceivers on
the Bus
Pin Configurations
TOP VIEW
A B Z Y GND
10 9 8 7 6
A B Z Y GND
10 9 8 7 6
MAX13181E
MAX13183E
+
1234
VCC RO H/F DE
µDFN
5
DI
MAX13182E
MAX13184E
+
1234
VCC RO RE DE
µDFN
5
DI
Pin Configurations continued at end of data sheet.
Selector Guide
PART
MAX13181E
MAX13182E
MAX13183E
MAX13184E
HALF/FULL
DUPLEX
Selectable
Full
Selectable
Full
MAXIMUM DATA
RATE
250 kbps
250 kbps
16 Mbps
16 Mbps
SLEW-RATE
LIMITED
Yes
Yes
No
No
LOW-POWER
SHUTDOWN
No
Yes
No
Yes
RECEIVER
ENABLE
No
Yes
No
Yes
Ordering Information
PART
TEMP RANGE
MAX13181EELB+
-40°C to +85°C
MAX13182EELB+
-40°C to +85°C
MAX13182EESD+
-40°C to +85°C
+Denotes a lead-free package.
PIN-PACKAGE
10 µDFN
10 µDFN
14 SO
TOP MARK
PKG CODE
ABC
L1022-1
ABD
L1022-1
— S14-1
Ordering Information continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing delivery, and ordering information please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

1 page




MAX13184E pdf
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
Y
VOD
Z
RL
2
CL
RL
2
VOC
Figure 1. Driver Differential Output
A (Y)
B (Z) VOH
VOL
Figure 2. Receiver Differential Input
3V
DI
0
1.5V
Z
Y
VO
VDIFF 0
-VO
VO
1/2 VO
10%
tDR
Figure 3. Driver Propagation Delay
tDPLH
tDPHL
VDIFF = V (Y) - V (Z)
90% 90%
tDF
tDSKEW = | tDPLH - tDPHL
1/2 VO
10%
0 OR 3V
D
GENERATOR
50Ω
S1
OUT
CL RL = 500Ω
50pF
RO
CL
GND
DE
tDZH , tDZH(SHDN)
VCC / 2
VCC
0
OUT VOM = (0 + VOH) / 2
Figure 4a. Driver Enable and Disable Times (tDHZ, tDZH, tDZH(SHDN))
0.5V
tDHZ
VOH
0
_______________________________________________________________________________________ 5

5 Page





MAX13184E arduino
+5.0V, ±15kV ESD-Protected, Half-Duplex/
Full-Duplex, RS-485 Transceiver in µDFN
Pin Description
MAX13181E/ MAX13182E/ MAX13182E/
MAX13183E MAX13184E MAX13184E NAME
FUNCTION
µDFN
SO
1
1
14
VCC
Positive Supply, VCC = +4.5V to +5.5V. Bypass VCC with a 0.1µF ceramic
capacitor to ground.
2
2
2
RO
Receiver Output. When RE is low and (A-B) 200mV, RO is high; if (A-B)
-200mV, RO is low.
—3
3
RE
Receiver Output Enable. Drive RE low to enable RO. Drive RE high to
disable the receiver. RE input has an internal pullup resistor.
Half-/Full-Duplex Selector Input. Connect H/F to VCC for half-duplex mode.
3 — — H/F Leave H/F unconnected or connect H/F to GND for full-duplex mode. H/F
input has an internal pulldown resistor.
4
4
4
DE
Driver Output Enable. Drive DE high to enable the driver. Driver output is high
impedance when DE is low. DE input has an internal pulldown resistor.
Driver Input. With DE high, a low on DI forces noninverting output low and
5 5 5 DI inverting output high. Similarly, a high on DI forces noninverting output high
and inverting output low.
6 6 6, 7 GND Ground
7
7
9
Y
Noninverting Driver Output. (Also noninverting receiver input in half-duplex
mode.)
8 8 10 Z Inverting Driver Output. (Also inverting receiver input in half-duplex mode.)
9 9 11 B Inverting Receiver Input
10 10 12 A Noninverting Receiver Input
1, 8, 13
N.C. No Connection. N.C. is not internally connected.
Detailed Description
The MAX13181E–MAX13184E high-speed transceivers
for RS-485 communication contain one driver and one
receiver. These devices feature 1/8 unit-load input
impedance that allows up to 256 receivers on the bus.
All devices feature integrated pullup/pulldown resistors
on the DE, RE, and H/F inputs to reduce external com-
ponents. The MAX13182E/MAX13184E feature a low-
current shutdown mode for power-sensitive applications.
The MAX13181E/MAX13182E feature reduced slew-rate
drivers to minimize EMI and reflections that are caused
by improperly terminated cables. The slew-rate limited
MAX13181E/MAX13182E allow error-free transmission
up to 250Kbps. The MAX13183E/MAX13184E feature
full-speed drivers allowing data rate of up to 16Mbps.
The MAX13182E/MAX13184E are configured for full-
duplex operation. The MAX13181E/MAX13183E feature
selectable half- or full-duplex operation by driving H/F
input high or low, respectively. All devices operate from
a single +5.0V supply.
±15kV ESD Protection
As with all Maxim devices, ESD-protection structures
are incorporated on all pins to protect against electro-
static discharges encountered during handling and
assembly. The driver outputs of the MAX13181E–
MAX13184E family have extra protection against static
electricity. Maxim’s engineers have developed state-of-
the-art structures to protect these driver outputs against
ESD of ±15kV with VCC = 5V, and regardless of the
logic state of DE and DI.
The ESD-protected pins are tested with reference to the
ground pin in a powered-down condition. They are test-
ed to ±15kV using the Human Body Model, ±12kV using
the IEC 61000-4-2 Air-Gap Discharge Model, and to
±6kV using the IEC 61000-4-2 Contact Discharge Model.
ESD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents
test setup, test methodology, and test results.
______________________________________________________________________________________ 11

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