參數(shù)資料
型號： ISL83385EIA-T
廠商： INTERSIL CORP
元件分類： 通用總線功能
英文描述： 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
中文描述： DUAL LINE TRANSCEIVER, PDSO20
封裝： PLASTIC, MO-150AE, SSOP-20
文件頁數(shù)： 5/11頁
文件大?。?/td> 94K
代理商： ISL83385EIA-T
5
Detailed Description
The ISL83385E 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 transmitters, and the receivers.
Charge-Pump
Intersil’s new ISL83385E 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 over the full V
CC
range; other capacitor combinations can be used as shown
in Table 3. 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.
All transmitter outputs disable and assume a high
impedance state when the device enters the powerdown
mode (see Table 2). These outputs 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, with one
transmitter operating at full speed. Under more typical
conditions of V
CC
≥
3.3V, R
L
= 3k
, and C
L
= 250pF, one
transmitter easily operates at 900kbps.
Transmitter inputs float if left unconnected (there are no pull-
up resistors), and may cause I
CC
increases. Connect
unused inputs to GND for the best performance.
Receivers
The ISL83385E contains standard inverting receivers that
convert RS-232 signals to CMOS output levels and accept
inputs up to
±
30V while presenting the required 3k
to 7k
input impedance (see Figure 1) even if the power is off
Output Leakage Current
V
OUT
=
±
12V, V
CC
= 0V or 3V to 5.5V, SHDN = GND
Full
-
-
±
25
μ
A
TIMING CHARACTERISTICS
Maximum Data Rate
R
L
= 3k
,
C
L
= 1000pF, One Transmitter Switching
Full
250
500
-
kbps
Receiver Propagation Delay
Receiver Input to Receiver
Output, C
L
= 150pF
t
PHL
25
-
0.15
-
μ
s
t
PLH
25
-
0.15
-
μ
s
Transmitter Output Enable Time
From SHDN Rising Edge to T
OUT
=
±
3.7V
25
-
100
-
μ
s
Transmitter Skew
t
PHL
- t
PLH
(Note 4)
25
-
100
-
ns
Receiver Skew
t
PHL
- t
PLH
25
-
50
-
ns
Transition Region Slew Rate
R
L
= 3k
to 7k
,
MeasuredFrom3Vto-3Vor
-3V to 3V, V
CC
= 3.3V
C
L
= 150pF to 1000pF
25
6
-
30
V/
μ
s
C
L
= 150pF to 2500pF
25
4
-
30
V/
μ
s
ESD PERFORMANCE
RS-232 Pins (T
OUT
, R
IN
)
Human Body Model
25
-
±
15
-
kV
IEC1000-4-2 Air Gap Discharge
25
-
±
15
-
kV
IEC1000-4-2 Contact Discharge
25
-
±
8
-
kV
All Other Pins
Human Body Model
25
-
±
3
-
kV
NOTE:
4. 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
TABLE 2. POWERDOWN TRUTH TABLE
SHDN
INPUT
TRANSMITTER
OUTPUTS
RECEIVER
OUTPUTS
MODE OF OPERATION
H
Active
Active
Normal Operation
L
High-Z
Active
Manual Powerdown
ISL83385E
相關PDF資料
PDF描述
ISL83385EIB 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
ISL83386EIV Quadruple 2-Input Positive-OR Gates 14-SOIC -40 to 85
ISL83386EIV-T 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
ISL83386E 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors
ISL83387EIV Quadruple 2-Input Positive-OR Gates 14-SSOP -40 to 85
相關代理商/技術參數(shù)
參數(shù)描述
ISL83385EIAZ 功能描述:IC 2DRVR/2RCVR RS232 3V 20-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:發(fā)射器 驅動器/接收器數(shù):4/0 規(guī)程:RS422，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)
ISL83385EIAZ-T 功能描述:IC 2DRVR/2RCVR RS232 3V 20-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR)
ISL83385EIB 功能描述:IC 2DRVR/2RCVR RS232 3V 18-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產品培訓模塊: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
ISL83385EIB-T 功能描述:IC 2DRVR/2RCVR RS232 3V 18-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產品培訓模塊: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
ISL83385EIBZ 功能描述:IC 2DRVR/2RCVR RS232 18-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:發(fā)射器 驅動器/接收器數(shù):4/0 規(guī)程:RS422，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*