參數(shù)資料
型號： ISL83220
廠商： Intersil Corporation
元件分類： RS-232
英文描述： 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
中文描述： 5V的高速RS - 232收發(fā)器與0.1uF電容
文件頁數(shù)： 4/11頁
文件大?。?/td> 267K
代理商： ISL83220
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
μ
F 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 V
CC
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
μ
F capacitors for the
voltage doubler and inverter functions, even at V
CC
= 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
and 1000pF), V
CC
≥
3.0V. Under more
typical conditions of V
CC
≥
3.3V, R
L
= 3k
, and C
L
= 250pF,
the ISL83220E easily operates at 900kbps.
Transmitter inputs float if left unconnected, and may cause
I
CC
increases.
Input Threshold High
V
CC
= 3.3V
Full
-
1.5
2.4
V
V
CC
= 5.0V
Full
-
1.8
2.4
V
Input Hysteresis
25
-
0.3
-
V
Input Resistance
Full
3
5
7
k
TIMING CHARACTERISTICS
Maximum Data Rate
R
L
= 3k
,
C
L
= 1000pF, One Transmitter Switching
Full
250
500
-
kbps
Transmitter Propagation Delay
Transmitter Input to
Transmitter Output,
R
L
= 3k
,
C
L
= 1000pF
t
PHL
25
-
1.0
-
μ
s
t
PLH
25
-
1.0
-
μ
s
Receiver Propagation Delay
Receiver Input to Receiver
Output, C
L
= 150pF
t
PHL
25
-
0.20
-
μ
s
t
PLH
25
-
0.30
-
μ
s
Receiver Output Enable Time
Normal Operation
25
-
200
-
ns
Receiver Output Disable Time
Normal Operation
25
-
200
-
ns
Transmitter Skew
t
PHL
- t
PLH
(Note 3)
25
-
100
500
ns
Receiver Skew
t
PHL
- t
PLH
Full
-
100
1000
ns
Transition Region Slew Rate
V
CC
= 3.3V,
R
L
= 3k
to 7k
,
Measured From 3V to -3V or
-3V to 3V
C
L
= 150pF to 2500pF
25
4
-
30
V/
μ
s
C
L
= 150pF to 1000pF
25
6
-
30
V/
μ
s
ESD PERFORMANCE
RS-232 Pins (T
OUT
, R
IN
)
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: V
CC
= 3V to 5.5V, C
1
- C
4
= 0.1
μ
F; Unless Otherwise Specified.
Typicals are at T
A
= 25
o
C
(Continued)
PARAMETER
TEST CONDITIONS
TEMP
(
o
C)
MIN
TYP
MAX
UNITS
ISL83220E
相關(guān)PDF資料
PDF描述
ISL83220ECA 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL83220E 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:【15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transmitters/Receivers
ISL83220E_06 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:【15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transmitters/Receivers
ISL83220ECA 制造商:Rochester Electronics LLC 功能描述:RS232 3V 1D/1R 15KV SHUTDOWN 16SSOP COM - Bulk
ISL83220ECB 制造商:Rochester Electronics LLC 功能描述:RS232 3V 1D/1R 15KV SHUTDOWN 16WSOIC COM - Bulk
ISL83220ECV 功能描述:IC 1DRVR/1RCVR RS232 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:25 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應商設備封裝:16-PDIP 包裝:管件
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