Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

ISL83220E Datasheet(PDF) 4 Page - Intersil Corporation

Part No. ISL83220E
Description  /-15kV ESD Protected, 3V to 5.5V, 1Microamp, 250kbps, RS-232 Transmitters/Receivers
Download  11 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL83220E Datasheet(HTML) 4 Page - Intersil Corporation

  ISL83220E Datasheet HTML 1Page - Intersil Corporation ISL83220E Datasheet HTML 2Page - Intersil Corporation ISL83220E Datasheet HTML 3Page - Intersil Corporation ISL83220E Datasheet HTML 4Page - Intersil Corporation ISL83220E Datasheet HTML 5Page - Intersil Corporation ISL83220E Datasheet HTML 6Page - Intersil Corporation ISL83220E Datasheet HTML 7Page - Intersil Corporation ISL83220E Datasheet HTML 8Page - Intersil Corporation ISL83220E Datasheet HTML 9Page - Intersil Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 11 page
background image
4
Detailed Description
The ISL83220E operates from a single +3V to +5.5V supply,
guarantees a 250kbps minimum data rate, requires only four
small external 0.1
µF capacitors, features low power
consumption, and meets all ElA RS-232C and V.28
specifications. The circuit is divided into three sections: The
charge pump, the transmitter, and the receiver.
Charge-Pump
Intersil’s new 3.3V family utilizes 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 these devices 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 0.1
µF capacitors for the
voltage doubler and inverter functions, even at VCC = 3.3V.
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 TTL/CMOS inputs 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.
The transmitter output disables and assumes a high
impedance state when the device enters the powerdown
mode (see Table 2). This output may be driven to
±12V when
disabled.
All devices guarantee a 250kbps data rate for full load
conditions (3k
Ω and 1000pF), VCC ≥ 3.0V. Under more
typical conditions of VCC ≥ 3.3V, RL = 3kΩ, and CL = 250pF,
the ISL83220E easily operates at 900kbps.
Transmitter inputs float if left unconnected, and may cause
ICC increases.
Input Threshold High
VCC = 3.3V
Full
-
1.5
2.4
V
VCC = 5.0V
Full
-
1.8
2.4
V
Input Hysteresis
25
-
0.3
-
V
Input Resistance
Full
357
k
TIMING CHARACTERISTICS
Maximum Data Rate
RL = 3kΩ, CL = 1000pF, One Transmitter Switching
Full
250
500
-
kbps
Transmitter Propagation Delay
Transmitter Input to
Transmitter Output,
RL = 3kΩ, CL = 1000pF
tPHL
25
-
1.0
-
µs
tPLH
25
-
1.0
-
µs
Receiver Propagation Delay
Receiver Input to Receiver
Output, CL = 150pF
tPHL
25
-
0.20
-
µs
tPLH
25
-
0.30
-
µs
Receiver Output Enable Time
Normal Operation
25
-
200
-
ns
Receiver Output Disable Time
Normal Operation
25
-
200
-
ns
Transmitter Skew
tPHL - tPLH (Note 3)
25
-
100
500
ns
Receiver Skew
tPHL - tPLH
Full
-
100
1000
ns
Transition Region Slew Rate
VCC = 3.3V,
RL = 3kΩ to 7kΩ,
Measured From 3V to -3V or
-3V to 3V
CL = 150pF to 2500pF
25
4
-
30
V/
µs
CL = 150pF to 1000pF
25
6
-
30
V/
µs
ESD PERFORMANCE
RS-232 Pins (TOUT, RIN)
Human Body Model
25
-
±15
-
kV
IEC1000-4-2 Contact Discharge
25
-
±8-
kV
IEC1000-4-2 Air Gap Discharge
25
-
±15
-
kV
All Other Pins
Human Body Model
25
-
±3-
kV
NOTE:
3. Transmitter skew is measured at the transmitter zero crossing points.
Electrical Specifications
Test Conditions: VCC = 3V to 5.5V, C1 - C4 = 0.1µF; Unless Otherwise Specified.
Typicals are at TA = 25
oC (Continued)
PARAMETER
TEST CONDITIONS
TEMP
(oC)
MIN
TYP
MAX
UNITS
ISL83220E


Html Pages

1  2  3  4  5  6  7  8  9  10  11 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
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