DataSheet.jp

ISL8489 の電気的特性と機能

ISL8489のメーカーはIntersil Corporationです、この部品の機能は「5V/ Low Power/ High Speed or Slew Rate Limited/ RS-485/RS-422 Transceivers」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL8489
部品説明 5V/ Low Power/ High Speed or Slew Rate Limited/ RS-485/RS-422 Transceivers
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




このページの下部にプレビューとISL8489ダウンロード(pdfファイル)リンクがあります。

Total 16 pages

No Preview Available !

ISL8489 Datasheet, ISL8489 PDF,ピン配置, 機能
®
Data Sheet
ISL8483, ISL8485, ISL8488,
ISL8489, ISL8490, ISL8491
December 2003
FN6046.3
5V, Low Power, High Speed or Slew Rate
Limited, RS-485/RS-422 Transceivers
The Intersil RS-485/RS-422 devices are BiCMOS 5V
powered, single transceivers that meet both the RS-485 and
RS-422 standards for balanced communication. Unlike
competitive devices, this Intersil family is specified for 10%
tolerance supplies (4.5V to 5.5V).
The ISL8483, ISL8488, and ISL8489 utilize slew rate limited
drivers which reduce EMI, and minimize reflections from
improperly terminated transmission lines, or unterminated
stubs in multidrop and multipoint applications.
Data rates up to 5Mbps are achievable by using the
ISL8485, ISL8490, or ISL8491, which feature higher slew
rates.
All devices present a “single unit load” to the RS-485 bus,
which allows up to 32 transceivers on the network.
Receiver (Rx) inputs feature a “fail-safe if open” design,
which ensures a logic high Rx output if Rx inputs are
floating.
Driver (Tx) outputs are short circuit protected, even for
voltages exceeding the power supply voltage. Additionally,
on-chip thermal shutdown circuitry disables the Tx outputs to
prevent damage if power dissipation becomes excessive.
The ISL8488 - 91 are configured for full duplex (separate Rx
input and Tx output pins) applications. The ISL8488 and
ISL8490 are offered in space saving 8 lead packages for
applications not requiring Rx and Tx output disable functions
(e.g., point-to-point). Half duplex configurations (ISL8483,
ISL8485) multiplex the Rx inputs and Tx outputs to allow
transceivers with Rx and Tx disable functions in 8 lead
packages.
Features
• Specified for 10% Tolerance Supplies
• Class 3 ESD Protection (HBM) on all Pins. . . . . . . . >7kV
• High Data Rates. . . . . . . . . . . . . . . . . . . . . . up to 5Mbps
• Slew Rate Limited Versions for Error Free Data
Transmission at 250kbps (ISL8483, ISL8488, ISL8489)
• Single Unit Load Allows up to 32 Devices on the Bus
• 1nA Low Current Shutdown Mode (ISL8483)
• Low Quiescent Current:
- 160µA (ISL8483, ISL8488, ISL8489)
- 340µA (ISL8485, ISL8490, ISL8491)
• -7V to +12V Common Mode Input Voltage Range
• Three State Rx and Tx Outputs (Except ISL8488,
ISL8490)
• 30ns Propagation Delays, 5ns Skew (ISL8485, ISL8490,
ISL8491)
• Full Duplex and Half Duplex Pinouts
• Operate from a Single +5V Supply (10% Tolerance)
• Current Limiting and Thermal Shutdown for driver
Overload Protection
Applications
• Factory Automation
• Security Networks
• Building Environmental Control Systems
• Industrial/Process Control Networks
• Level Translators (e.g., RS-232 to RS-422)
• RS-232 “Extension Cords”
TABLE 1. SUMMARY OF FEATURES
PART HALF/FULL NO. OF DEVICES DATA RATE SLEW-RATE
RECEIVER/
QUIESCENT LOW POWER PIN
NUMBER DUPLEX ALLOWED ON BUS (Mbps)
LIMITED? DRIVER ENABLE? ICC (µA) SHUTDOWN? COUNT
ISL8483
Half
32 0.25 Yes Yes 160 Yes 8
ISL8485
Half
32
5 No
Yes 340 No 8
ISL8488
Full
32 0.25 Yes No 160 No 8
ISL8489
Full
32 0.25 Yes Yes 160 No 14
ISL8490
Full
32
5 No
No 340 No 8
ISL8491
Full
32
5 No
Yes 340 No 14
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.

1 Page





ISL8489 pdf, ピン配列
ISL8483, ISL8485, ISL8488, ISL8489, ISL8490, ISL8491
Truth Tables
TRANSMITTING
INPUTS
OUTPUTS
RE DE
DI
Z
Y
X1101
X1010
0
0
X
High-Z
High-Z
1 0 X High-Z * High-Z *
*Shutdown Mode for ISL8483 (see Note 7)
RECEIVING
INPUTS
OUTPUT
RE DE DE A-B
Half Duplex Full Duplex
RO
0 0 X +0.2V 1
0 0 X -0.2V 0
0 0 X Inputs Open 1
1 0 0 X High-Z *
1 1 1 X High-Z
*Shutdown Mode for ISL8483 (see Note 7)
Pin Descriptions
PIN FUNCTION
RO Receiver output: If A > B by at least 0.2V, RO is high; If A < B by 0.2V or more, RO is low; RO = High if A and B are unconnected (floating).
RE Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high.
DE Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low.
DI Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low.
GND Ground connection.
A/Y Noninverting receiver input and noninverting driver output. Pin is an input (A) if DE = 0; pin is an output (Y) if DE = 1.
B/Z Inverting receiver input and inverting driver output. Pin is an input (B) if DE = 0; pin is an output (Z) if DE = 1.
A Noninverting receiver input.
B Inverting receiver input.
Y Noninverting driver output.
Z Inverting driver output.
VCC System power supply input (4.5V to 5.5V).
NC No Connection.
3


3Pages


ISL8489 電子部品, 半導体
ISL8483, ISL8485, ISL8488, ISL8489, ISL8490, ISL8491
Electrical Specifications
Test Conditions: VCC
Typicals are at VCC =
= 4.5V
5V, TA
to
=
5.5V; Unless
25oC, Note 2
Otherwise Specified.
(Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(oC) MIN TYP MAX UNITS
Receiver Input Resistance
No-Load Supply Current, Note 3
RIN -7V VCM 12V
ICC ISL8488, ISL8489, DE, DI, RE = 0V or VCC
ISL8490, ISL8491, DE, DI, RE = 0V or VCC
ISL8485, DI, RE = 0V or DE = VCC
VCC
DE = 0V
Full 12
Full -
Full -
Full -
Full -
- - k
160 250 µA
340 500 µA
550 900 µA
340 500 µA
ISL8483, DI, RE = 0V or DE = VCC
VCC
DE = 0V
Full -
Full -
390 650 µA
160 250 µA
Shutdown Supply Current
ISHDN ISL8483, DE = 0V, RE = VCC, DI = 0V or VCC
Driver Short-Circuit Current,
VO = High or Low
IOSD1 DE = VCC, -7V VY or VZ 12V, Note 4
Receiver Short-Circuit Current
IOSR 0V VO VCC
SWITCHING CHARACTERISTICS (ISL8485, ISL8490, ISL8491)
Full -
Full 35
Full 7
1 50 nA
- 250 mA
- 85 mA
Driver Input to Output Delay
tPLH, tPHL RDIFF = 54, CL = 100pF, Figure 2
Driver Output Skew
tSKEW RDIFF = 54, CL = 100pF, Figure 2
Driver Differential Rise or Fall Time tR, tF RDIFF = 54, CL = 100pF, Figure 2
Driver Enable to Output High
tZH CL = 100pF, SW = GND, Figure 3
Driver Enable to Output Low
tZL CL = 100pF, SW = VCC, Figure 3
Driver Disable from Output High
tHZ CL = 15pF, SW = GND, Figure 3
Driver Disable from Output Low
tLZ CL = 15pF, SW = VCC, Figure 3
Receiver Input to Output Delay
tPLH, tPHL Figure 4
Receiver Skew | tPLH - tPHL |
tSKD Figure 4
Receiver Enable to Output High
tZH CL = 15pF, SW = GND, Figure 5
Receiver Enable to Output Low
tZL CL = 15pF, SW = VCC, Figure 5
Receiver Disable from Output High tHZ CL = 15pF, SW = GND, Figure 5
Receiver Disable from Output Low tLZ CL = 15pF, SW = VCC, Figure 5
Maximum Data Rate
fMAX
SWITCHING CHARACTERISTICS (ISL8483, ISL8488, ISL8489)
Full 18
Full -
Full 3
Full -
Full -
Full -
Full -
Full 30
25 -
Full -
Full -
Full -
Full -
Full 5
30 50 ns
2 10 ns
11 25 ns
17 70 ns
14 70 ns
19 70 ns
13 70 ns
40 150 ns
5 - ns
9 50 ns
9 50 ns
9 50 ns
9 50 ns
- - Mbps
Driver Input to Output Delay
tPLH, tPHL RDIFF = 54, CL = 100pF, Figure 2
Driver Output Skew
tSKEW RDIFF = 54, CL = 100pF, Figure 2
Driver Differential Rise or Fall Time tR, tF RDIFF = 54, CL = 100pF, Figure 2
Driver Enable to Output High
tZH CL = 100pF, SW = GND, Figure 3, Note 5
Driver Enable to Output Low
tZL CL = 100pF, SW = VCC, Figure 3, Note 5
Driver Disable from Output High
tHZ CL = 15pF, SW = GND, Figure 3
Driver Disable from Output Low
tLZ CL = 15pF, SW = VCC, Figure 3
Receiver Input to Output Delay
tPLH, tPHL Figure 4
Receiver Skew | tPLH - tPHL |
tSKD Figure 4
Receiver Enable to Output High
tZH CL = 15pF, SW = GND, Figure 5, Note 6
Receiver Enable to Output Low
tZL CL = 15pF, SW = VCC, Figure 5, Note 6
Receiver Disable from Output High tHZ CL = 15pF, SW = GND, Figure 5
Full 250
Full -
Full 250
Full 250
Full 250
Full 300
Full 300
Full 250
25 -
Full -
Full -
Full -
800 2000
160 800
800 2000
- 2000
- 2000
- 3000
- 3000
350 2000
25 -
10 50
10 50
10 50
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
6

6 Page



ページ 合計 : 16 ページ
 
PDF
ダウンロード
[ ISL8489 データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
ISL8483

5V/ Low Power/ High Speed or Slew Rate Limited/ RS-485/RS-422 Transceivers

Intersil Corporation
Intersil Corporation
ISL8483E

ESD Protected to 15kV/ 5V/ Low Power/ High Speed or Slew Rate Limited/ RS-485/RS-422 Transceivers

Intersil Corporation
Intersil Corporation
ISL8483IB

5V/ Low Power/ High Speed or Slew Rate Limited/ RS-485/RS-422 Transceivers

Intersil Corporation
Intersil Corporation
ISL8483IB-T

5V/ Low Power/ High Speed or Slew Rate Limited/ RS-485/RS-422 Transceivers

Intersil Corporation
Intersil Corporation


www.DataSheet.jp    |   2020   |  メール    |   最新    |   Sitemap