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MAX3292ESD+ Datasheet

  • MAX3292ESD+

  • IC, RS422/RS485 TXRX 10MBPS 5.25V SOIC14; No. of Drivers:1; ...

  • 16頁

  • Maxim   Maxim

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19-1405; Rev 1; 4/99
RS-485/RS-422 Transceivers with Preemphasis
for High-Speed, Long-Distance Communication
________________General Description
The MAX3291/MAX3292 high-speed RS-485/RS-422
transceivers feature driver preemphasis circuitry, which
extends the distance and increases the data rate of reli-
able communication by reducing intersymbol interfer-
ence (ISI) caused by long cables. The MAX3291 is
programmable for data rates of 5Mbps to 10Mbps,
while the MAX3292 is programmable for data rates up
to 10Mbps by using a single external resistor.
The MAX3291/MAX3292 are full-duplex devices that
operate from a single +5V supply and offer a low-cur-
rent shutdown mode that reduces supply current to
100nA. They feature driver output short-circuit current
limiting and a fail-safe receiver input that guarantees a
logic-high output if the input is open circuit. A 1/4-unit-
load receiver input impedance allows up to 128 trans-
ceivers on the bus.
____________________________Features
o
Preemphasis Increases the Distance and Data
Rate of Reliable RS-485/RS-422 Communication
o
Data Rate
Optimized for 5Mbps to 10Mbps (MAX3291)
Programmable up to 10Mbps (MAX3292)
o
100nA Low-Current Shutdown Mode
o
Allow Up to 128 Transceivers on the Bus
o
-7V to +12V Common-Mode Input Voltage Range
o
Pin-Compatible with 鈥?5180, MAX489, MAX491
MAX3080, MAX3083, MAX3086, MAX1482
MAX3291/MAX3292
_______________Ordering Information
PART
MAX3291CSD
TEMP. RANGE
0擄C to +70擄C
0擄C to +70擄C
-40擄C to +85擄C
-40擄C to +85擄C
0擄C to +70擄C
0擄C to +70擄C
-40擄C to +85擄C
-40擄C to +85擄C
PIN-PACKAGE
14 SO
14 Plastic DIP
14 SO
14 Plastic DIP
14 SO
14 Plastic DIP
14 SO
14 Plastic DIP
________________________Applications
Long-Distance, High-Speed RS-485/RS-422
Communications
Telecommunications
Industrial-Control Local Area Networks
MAX3291CPD
MAX3291ESD
MAX3291EPD
MAX3292CSD
MAX3292CPD
MAX3292ESD
MAX3292EPD
Typical Operating Circuit and Functional Diagram
R
PSET
*
R
PSET
*
1碌F
PEE
(PSET)
C
PSET
*
V
CC
14
1
(V
CCD
)
RO
RE
DE
DI
2
3
4
5
Z 10
Y 9
R = Z
O
R = Z
O
11
12
B
A
13
R = Z
O
R = Z
O
9
10
Y
Z
A 12
B 11
PEE
(PSET)
C
PSET
*
V
CC
14
1
(V
CCD
)
1碌F
13
5
DI
4 DE
3
RE
2
RO
( ) ARE FOR MAX3292
* MAX3292 ONLY
Z
O
= THE CHARACTERISTIC
IMPEDANCE OF THE CABLE
MAX3291
MAX3292
7(6)
GND
MAX3291
MAX3292
7(6)
GND
Pin Configuration appears at end of data sheet.
________________________________________________________________
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.

MAX3292ESD+ 產品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 50

  • 集成電路 (IC)

  • 接口 - 驅動器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • 1/1

  • RS422，RS485

  • 4.75 V ~ 5.25 V

  • 表面貼裝

  • 14-SOIC（0.154"，3.90mm 寬）

  • 14-SOIC

  • 管件

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