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MAX3170 Datasheet

  • MAX3170

  • " +3.3V, Multiprotocol, 3 Tx/3 Rx, Software- Selectable Cloc...

  • 344.54KB

  • Maxim   Maxim

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19-1703; Rev 0; 4/00
+3.3V, Multiprotocol, 3 Tx/3 Rx, Software-
Selectable Clock/Data Transceiver
General Description
The MAX3170 is a three-driver/three-receiver multipro-
tocol transceiver that operates from a +3.3V single sup-
ply. The MAX3170, along with the MAX3171/MAX3173
and MAX3172/MAX3174, form a complete software-
selectable data terminal equipment (DTE) or data com-
munications equipment (DCE) interface port that
supports the V.28 (RS-232), V.11 (RS-449/V.36, EIA530,
EIA530-A, X.21), and V.35 protocols. The MAX3170
transceiver carries the high-speed clock and data sig-
nals, while the MAX3171 or MAX3173 carries the con-
trol signals. The MAX3170 can be terminated by the
MAX3172 or MAX3174 software-selectable resistor ter-
mination network or by a discrete termination network.
An internal charge pump and proprietary low-dropout
transmitter output stage allow V.11-, V.28-, and V.35-
compliant operation from a +3.3V single supply. A no-
cable mode is entered when all mode pins (M0, M1,
and M2) are pulled high or left unconnected. In no-
cable mode, supply current decreases to 1mA and all
transmitter and receiver outputs are disabled (high
impedance). Short-circuit limiting and thermal shut-
down circuitry protect the drivers against excessive
power dissipation.
o
3V/5V Logic-Compatible I/O
o
Certified TBR-1 and TBR-2 Compliant (NET1 and
NET2)鈥擯ending Completion
o
Supports V.28 (RS-232), V.11 (RS-449/V.36,
EIA530, EIA530-A, X.21), and V.35 Protocols
o
Software-Selectable DTE/DCE
o
Complete DTE/DCE Port with MAX3171/MAX3173
and MAX3172/MAX3174
o
True Fail-Safe Receiver Operation
o
Available in Small 28-Pin SSOP Package
o
10Mbps Operation (V.11/V.35)
o
Requires Only Four Tiny Surface-Mount
Capacitors
o
All Transmitter Outputs Are Fault Protected to
鹵15V to Survive Cable Miswiring
Features
o
Industry鈥檚 First +3.3V Single-Supply Transceiver
MAX3170
________________________Applications
Data Networking
CSU and DSU
Data Routers
PCI Cards
Telecommunications
PART
MAX3170CAI
Ordering Information
TEMP. RANGE
0擄C to +70擄C
PIN-PACKAGE
28 SSOP
Pin Configuration appears at end of data sheet.
Typical Operating Circuit
CTS
DSR
DCD
DTR
RTS
LL
RXD
RXC
TXC
SCTE TXD
MAX3171
MAX3173
R3
R2
R1
D3
D2
D1
MAX3172
MAX3174
R3
R2
R1
D3
D2
D1
MAX3170
R4
D4
13 5
CTS B
CTS A
10 8
DSR B
DSR A
22 6
DCD B
DCD A
23 20 19 4
DTR B
DTR A
RTS B
RTS A
1
SHIELD
7
SG
DB-25 CONNECTOR
18
LL A
16 3
9 17
12 15 11 24 14 2
TXC B
TXC A
SCTE B
SCTE A
TXD B
TXD A
________________________________________________________________
Maxim Integrated Products
RXD B
RXD A
RXC B
RXC A
1
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.

MAX3170 PDF文件相關(guān)型號(hào)

MAX3170CAI

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