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参数资料
| 型号： | ISL83220ECVZ |
| 厂商： | Intersil |
| 文件页数： | 6/10页 |
| 文件大小： | 0K |
| 描述： | IC 1DVR/1RCVR RS232 16-TSSOP |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 96 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS232 |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 管件 |
| 产品目录页面： | 1242 (CN2011-ZH PDF) |
5
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), V
CC ≥ 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.
Receivers
The ISL83220E device contains a standard inverting
receiver that three-states via the EN control line. Receivers
convert RS-232 signals to CMOS output levels and accept
inputs up to
±25V while presenting the required 3kΩ to 7kΩ
input impedance (see Figure 1) even if the power is off
(VCC = 0V). The receiver’s Schmitt trigger input stage uses
hysteresis to increase noise immunity and decrease errors
due to slow input signal transitions.
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 2)
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
IEC61000-4-2 Contact Discharge
25
-
±8-
kV
IEC61000-4-2 Air Gap Discharge
25
-
±15
-
kV
All Other Pins
Human Body Model
25
-
±3-
kV
NOTE:
2. 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°C (Continued)
PARAMETER
TEST CONDITIONS
TEMP
(°C)
MIN
TYP
MAX
UNITS
ISL83220E
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL83220ECVZ-T | 功能描述:RS-232接口集成电路 RS232 3V 1D/1R 15KV SHTDWN COME RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| ISL83220EIA | 制造商:Rochester Electronics LLC 功能描述:RS232 3V 1D/1R 15KV SHUTDOWN 16SSOP IND - Bulk |
| ISL83220EIB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ISL83220EIV | 功能描述:IC 1DRVR/1RCVR RS232 16-TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
| ISL83220EIV-T | 功能描述:IC 1DRVR/1RCVR RS232 16-TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
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