データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

ISL3241EIRZ データシート(PDF) 8 Page - Intersil Corporation

部品番号 ISL3241EIRZ
部品情報  QFN Packaged, 짹15kV ESD Protected, 2.7V to 3.6V, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply Pin
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  INTERSIL [Intersil Corporation]
ホームページ  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL3241EIRZ データシート(HTML) 8 Page - Intersil Corporation

Back Button ISL3241EIRZ Datasheet HTML 4Page - Intersil Corporation ISL3241EIRZ Datasheet HTML 5Page - Intersil Corporation ISL3241EIRZ Datasheet HTML 6Page - Intersil Corporation ISL3241EIRZ Datasheet HTML 7Page - Intersil Corporation ISL3241EIRZ Datasheet HTML 8Page - Intersil Corporation ISL3241EIRZ Datasheet HTML 9Page - Intersil Corporation ISL3241EIRZ Datasheet HTML 10Page - Intersil Corporation ISL3241EIRZ Datasheet HTML 11Page - Intersil Corporation ISL3241EIRZ Datasheet HTML 12Page - Intersil Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 16 page
background image
8
FN6768.1
May 13, 2010
Detailed Description
The ISL324xE operate from a single +2.7V to +3.6V supply,
guarantee a 250kbps minimum data rate, require only four
small external 0.1µF capacitors, feature low power
consumption, and meet all ElA RS-232 and V.28
specifications even with VCC = 3.0V. The circuit is divided
into three sections: The charge pump, the transmitters, and
the receivers.
Charge-Pump
Intersil’s new ISL324xE devices utilize regulated on-chip
dual charge pumps as voltage doublers, and voltage
inverters to generate ±5.5V transmitter supplies from a VCC
supply as low as 3.0V. This allows them to maintain RS-232
compliant output levels over the ±10% tolerance range of
3.3V powered systems. The efficient on-chip power supplies
require only four small, external 0.1µF capacitors for the
voltage doubler and inverter functions. The charge pumps
operate discontinuously (i.e., they turn off as soon as the V+
and V- supplies are pumped up to the nominal values),
resulting in significant power savings.
Transmitters
The transmitters are proprietary, low dropout, inverting
drivers that translate logic input levels to EIA/TIA-232 output
levels. Coupled with the on-chip ±5.5V supplies, these
transmitters deliver true RS-232 levels over a wide range of
single supply system voltages.
All transmitter outputs disable and assume a high
impedance state when the device enters the power-down
mode (see Table 2). These outputs may be driven to
±12V
when disabled.
The devices guarantee a 250kbps data rate for full load
conditions (3k
Ω and 1000pF), V
CC ≥ 3.0V, with one
transmitter operating at full speed. Under more typical
conditions of VCC ≥ 3.3V, RL = 3kΩ, and CL = 200pF, one
transmitter easily operates at greater than 1Mbps.
The transmitter input switching threshold is set by the
voltage applied to the VL pin, so tying VL to a voltage lower
than VCC reduces the Tx input VIH and VIL to values
compatible with logic ICs (e.g., UARTs and µcontrollers)
powered by the VL voltage (see Figure 9 and Table 3).
Transmitter inputs float if left unconnected (there are no
pull-up resistors), and may cause supply current increases.
Connect unused inputs to GND for the best performance.
Receivers
All the ISL324xE devices contain standard inverting
receivers that three-state via the EN or FORCEOFF control
lines. Additionally, these products include noninverting
“monitor” receivers (denoted by the ROUTB label) that are
always active, regardless of the state of any control lines. All
the receivers convert RS-232 signals to CMOS output levels,
swinging between GND and VL, and accept inputs up to
±25V while presenting the required 3k
Ω to 7kΩ input
impedance (see Figure 4) even if the power is off
(VCC = 0V). The receivers’ Schmitt trigger input stage uses
hysteresis to increase noise immunity and decrease errors
due to slow input signal transitions.
The ISL3241E inverting receivers disable only when EN is
driven high. ISL3243E receivers disable during forced
(manual) powerdown, but not during automatic powerdown
(see Table 2).
FIGURE 3A. TEST CIRCUIT
FIGURE 3B. MEASUREMENT POINTS
FIGURE 3. RECEIVER ENABLE AND DISABLE TIMES
Test Circuits and Waveforms (Continued)
PARAMETER
RIN
SW
tPHZ and tPZH
GND
GND
tPLZ and tPZL
VCC
VL
R
EN
RIN
VCC
SIGNAL
GENERATOR
CL
OR
FORCEOFF
ROUT
VL
GND
SW
1k
Ω
OR
GND
VL
FORCEON
OR SHDN
ROUT
VL
0V
50%
50%
VOH
0V
50%
VOH - 0.3V
tPHZ
ROUT
VL
VOL
50%
VOL + 0.3V
tPLZ
FORCEOFF
OUTPUT HIGH
OUTPUT LOW
tPZL
tPZH
VL
0V
50%
50%
EN
RXOUT
GND
≤ VROUT ≤ VL
5k
Ω
RXIN
-25V
≤ VRIN ≤ +25V
GND
VL
FIGURE 4.
INVERTING RECEIVER CONNECTIONS
ISL3241E, ISL3243E


同様の部品番号 - ISL3241EIRZ

メーカー部品番号データシート部品情報
logo
Intersil Corporation
ISL3241EIRZ INTERSIL-ISL3241EIRZ Datasheet
681Kb / 16P
   QFN Packaged, ±15kV ESD Protected, 2.7V to 3.6V, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply Pin
June 18, 2012
logo
Renesas Technology Corp
ISL3241EIRZ RENESAS-ISL3241EIRZ Datasheet
962Kb / 16P
   QFN Packaged, 짹15kV ESD Protected, 2.7V to 3.6V, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply Pin
More results

同様の説明 - ISL3241EIRZ

メーカー部品番号データシート部品情報
logo
Renesas Technology Corp
ISL3241E RENESAS-ISL3241E Datasheet
962Kb / 16P
   QFN Packaged, 짹15kV ESD Protected, 2.7V to 3.6V, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply Pin
logo
Intersil Corporation
ISL3241EIRZ INTERSIL-ISL3241EIRZ Datasheet
681Kb / 16P
   QFN Packaged, ±15kV ESD Protected, 2.7V to 3.6V, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply Pin
June 18, 2012
ISL4221E INTERSIL-ISL4221E_07 Datasheet
415Kb / 13P
   QFN Packaged, 짹15kV ESD Protected, 2.7V to 5.5V, 150nA, 250kBps, RS-232 Transmitters/Receivers
ISL4260E INTERSIL-ISL4260E Datasheet
341Kb / 11P
   QFN Packaged, 짹15kV ESD Protected, 3V to 5.5V, 150nA, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply
logo
Renesas Technology Corp
ISL3232E RENESAS-ISL3232E Datasheet
661Kb / 14P
   QFN Packaged, 짹15kV ESD Protected, 2.7V to 5.5V, 150nA, 250kbps, RS-232 Transmitters/Receivers
ISL4241E RENESAS-ISL4241E Datasheet
684Kb / 14P
   QFN Packaged, 짹15kV ESD Protected, 2.7V to 5.5V, 10Nanoamp, 250kbps, RS-232 Transmitters/Receivers
ISL4260E RENESAS-ISL4260E Datasheet
599Kb / 11P
   QFN Packaged, 짹15kV ESD Protected, 3V to 5.5V, 150nA, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply
logo
Intersil Corporation
ISL3232EIRZ INTERSIL-ISL3232EIRZ Datasheet
279Kb / 14P
   QFN Packaged, ±15kV ESD Protected, 2.7V to 5.5V, 150nA, 250kbps, RS-232 Transmitters/Receivers
May 13, 2010
ISL4221E INTERSIL-ISL4221E Datasheet
401Kb / 13P
   QFN Packaged, /-15kV ESD Protected, 2.7V to 5.5V, 150Nanoamp, 250kBps, RS-232 Transmitters/Receivers
ISL83386E INTERSIL-ISL83386E Datasheet
231Kb / 10P
   짹15kV ESD Protected, 3V to 5.5V, 1 Microamp, 250kbps, RS-232 Transmitters/Receivers with Separate Logic Supply
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


データシート ダウンロード

Go To PDF Page


リンク URL




プライバシーポリシー
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   リンク交換   |   メーカーリスト
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com