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ISL32177E の電気的特性と機能

ISL32177EのメーカーはIntersil Corporationです、この部品の機能は「(ISL32173E - ISL32277E) RS-485/RS-422 Receivers」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL32177E
部品説明 (ISL32173E - ISL32277E) RS-485/RS-422 Receivers
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL32177E Datasheet, ISL32177E PDF,ピン配置, 機能
QUAD, ±16.5kV ESD Protected, 3.0V to 5.5V,
RS-485/RS-422 Receivers
ISL32173E, ISL32175E, ISL32177E, ISL32273E, ISL32275E,
ISL32277E
These Intersil devices are ±16.5kV IEC61000-4-2 ESD
protected, 3.0V to 5.5V powered, QUAD receivers for
balanced communication using the RS-485 and RS-422
standards. Each receiver has low input currents
(±200μA), so it presents a 1/4 unit load to the RS-485
bus, and allows up to 128 receivers on the bus.
The ISL32173E, ISL32175E, ISL32177E are high data
rate receivers that operate at data rates up to 80Mbps.
Their 8ns maximum propagation delay skew (tolerance)
guarantees excellent part-to-part matching. The
ISL32273E, ISL32275E, ISL32277E are reduced supply
current versions that operate at data rates up to 20Mbps.
Receiver outputs are tri-statable, and incorporate a hot
plug feature to keep them disabled during power up and
down. Versions are available with a common EN/EN (‘173
pinout), a two channel EN12/EN34 (‘175 pinout), or a
versatile individual channel enable (see Table 1)
A 26% smaller footprint is available with the ISL32177E
and ISL32277E QFN packages, and these two devices
also feature a logic supply pin (VL). The VL supply sets
the switching points of the enable inputs, and the
receiver outputs’ VOH, to levels compatible with a lower
supply voltage in mixed voltage systems. Individual
channel and group enable pins increase the ISL32177E
and ISL32277E’s flexibility.
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Features
• IEC61000 ESD Protection (RS-485 Inputs) ±16.5kV
- Class 3 ESD on all Other Pins . . . . . .>8kV HBM
• Wide Supply Range. . . . . . . . . . . . . 3.0V to 5.5V
• Wide Common Mode Range . . . . . . . -7V to +12V
• Low Part-to-Part Propagation Delay
Tolerance . . . . . . . . . . . . . . . . . . . ±4ns (max)
• Specified for +125°C Operation
• Fail-Safe Open Rx Inputs
• 1/4 Unit Load Allows 128 Devices on the Bus
• Available in Industry Standard Pinouts (‘173/’175)
and a 4x4 QFN (ISL32X77E) with Added Features
• Logic Supply Pin (VL) Eases Operation in Mixed
Supply Systems (ISL32X77E)
• High Data Rates . . . . . . . . . up to 80M or 20Mbps
• Low Shutdown Supply Current . . . . . . . . . . 60μA
• Tri-statable Rx Outputs
• 5V Tolerant Logic Inputs When VCC = 3.3V
Applications*(see page 19)
• Telecom Equipment
• Motor Controllers/Encoders
• Programmable Logic Controllers
• Industrial/Process Control Networks
ISL32177E Part-to-Part Prop
Delay Variability
VCC = 3.3V, +25°C
# of DEVICES = 270
ISL3217XE Data Rate and VL
Performance
1
0
A-B
-1
80Mbps
VCC = 3.3V
RECEIVER PROPAGATION DELAY (ns)
3.0
2.5
2.0
1.5
1.0
0.5
0
-0.5
VL = 2.5V
VL = 1.8V
VL = 1.6V
TIME (4ns/DIV)
November 19, 2009
FN7529.0
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

1 Page





ISL32177E pdf, ピン配列
ISL32173E, ISL32175E, ISL32177E, ISL32273E, ISL32275E, ISL32277E
Pin Descriptions
ISL32173E, ISL32175E, ISL32177E,
ISL32273E ISL32275E ISL32277E
PIN NUMBER PIN NUMBER PIN NUMBER
PIN
FUNCTION
4, 12
-
4, 15
EN, EN Group driver output enables, that are internally pulled high to
VCC. All receiver outputs are enabled by driving EN high OR EN
low, and the outputs are all high impedance when EN is low AND
EN is high (i.e., if using only the active high EN, connect EN to
VCC or VL through a 1kΩ resistor; if using only the active low EN,
connect EN directly to GND). If the group enable function isn’t
required, connect EN to VCC (or VL) through a 1kΩ or greater
resistor, or connect EN directly to GND. (ISL32X73E and
ISL32X77E only)
- 4, 12 - EN12, EN34 Paired driver output enables, that are internally pulled high to
VCC. Driving EN12 (EN34) high enables the channel 1 and 2
(3 and 4) RO outputs. Driving EN12 (EN34) low disables the
channel 1 and 2 (3 and 4) outputs. If the enable function isn’t
required, connect EN12 and EN34 to VCC (or VL) through a 1kΩ
or greater resistor. (ISL32X75E only).
-
-
2, 3,
EN1, EN2, Individual receiver output enables that are internally pulled high
16, 17
EN3, EN4 to VCC. Forcing ENX high (along with EN high OR EN low) enables
the channel X output (ROX). Driving ENX low disables the
channel X output, regardless of the states of EN and EN. If the
individual channel enable function isn’t required, connect ENX to
VCC (or VL) through a 1kΩ or greater resistor. (ISL32X77E only)
- - 9 SHDNEN Low power SHDN mode enable that is internally pulled high to
VCC. A high level allows the ISL32X77E to enter a low power
mode when all channels are disabled. A low level prevents the
device from entering the low power mode. (ISL32X77E only)
3, 5,
11, 13
3, 5,
11, 13
1, 6,
13, 18
RO1, RO2,
RO3, RO4
Channel X receiver output: If A - B 200mV, RO is high;
If A - B -200mV, RO is low. RO = High if A and B are unconnected
(floating).
88
2, 6,
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1, 7,
9, 15
16
2, 6,
10, 14
1, 7,
9, 15
16
--
--
10, PD
24, 7,
12, 19
23, 8,
11, 20
22
21
5, 14
GND
A1, A2,
A3, A4
B1, B2,
B3, B4
VCC
VL
NC
Ground connection. This is also the potential of the QFN thermal
pad.
±16.5kV IEC61000-4-2 ESD Protected RS-485/422 level,
channel X noninverting receiver input.
±16.5kV IEC61000-4-2 ESD Protected RS-485/422 level,
channel X inverting receiver input.
System power supply input (3.0V to 5.5V). On devices with a VL
pin, power up VCC first.
Logic power supply input (1.4V to VCC) that powers all the
TTL/CMOS inputs and outputs (logic pins). VL sets the VIH and
VIL levels of the enable and SHDNEN pins, and sets the VOH level
of the RO pins. Connect the VL pin to the lower voltage power
supply of a logic device (e.g., UART or μcontroller) interfacing
with the ISL32X77E logic pins. Power up this supply after VCC,
and keep VL VCC. To minimize input current and SHDN supply
current, logic pins that are strapped high externally (preferably
through a 1kΩ resistor) should connect to VCC, but they may also
connect to VL. (ISL32X77E only)
No Connection.
3 FN7529.0
November 19, 2009


3Pages


ISL32177E 電子部品, 半導体
ISL32173E, ISL32175E, ISL32177E, ISL32273E, ISL32275E, ISL32277E
Typical Operating Circuits (1 of 4 Channels Shown) (Continued)
NETWORK WITH VL PIN FOR INTERFACING TO LOWER VOLTAGE LOGIC DEVICES
VCC
LOGIC
DEVICE
(μP, ASIC,
UART)
+1.8V +3.3V TO 5V
21 22 1kΩ
VL VCC 9
SHDNEN
15
ISL32X77E EN 4
EN
1 RO1 R
A1 24
B1 23
RT
2 EN1
+
0.1μF
GND
10
+3.3V TO 5V +2.5V
1kΩ
+ 0.1μF
21
20
22
VCC
SHDNEN
VL
14 EN ISL32179E
2, 3, 15, 16 EN1-EN4
24 Y
1Z
D
DI
23
EN
GND
4
9
VCC
LOGIC
DEVICE
(μP, ASIC,
UART)
USING INDIVIDUAL
CHANNEL ENABLES AND
CONFIGURED FOR LOWEST
SHDN SUPPLY CURRENT
NOTE: POWER UP VCC BEFORE VL
USING ACTIVE
HIGH GROUP ENABLE
AND CONFIGURED FOR
LOWEST SHDN SUPPLY
CURRENT
NOTE: POWER UP VCC BEFORE VL
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6 FN7529.0
November 19, 2009

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
ISL32177E

(ISL32173E - ISL32277E) RS-485/RS-422 Receivers

Intersil Corporation
Intersil Corporation


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