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参数资料
| 型号： | SN65C3221DWR |
| 厂商： | Texas Instruments, Inc. |
| 元件分类： | 外设及接口 |
| 英文描述： | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 电可擦除可编程逻辑器件 |
| 文件页数： | 1/16页 |
| 文件大小： | 297K |
| 代理商： | SN65C3221DWR |
SLLS351E APRIL 2002 REVISED OCTOBER 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operate With 3-V to 5.5-V V
CC
Supply
Operate Up To 1 Mbit/s
Low Standby Current . . . 1
μ
A Typ
External Capacitors . . . 4
×
0.1
μ
F
Accepts 5-V Logic Input With 3.3-V Supply
RS-232 Bus-Pin ESD Protection Exceeds
±
15 kV Using Human-Body Model (HBM)
Auto-Powerdown Feature Automatically
Disables Drivers for Power Savings
Applications
Battery-Powered, Hand-Held, and
Portable Equipment
PDAs and Palmtop PCs
Notebooks, Sub-Notebooks, and Laptops
Digital Cameras
Mobile Phones and Wireless Devices
description/ordering information
The SN65C3221 and SN75C3221 consist of one line driver, one line receiver, and a dual charge-pump circuit
with
±
15-kV ESD protection pin to pin (serial-port connection pins, including GND). These devices provide the
electrical interface between an asynchronous communication controller and the serial-port connector. The
charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. These devices
operate at data signaling rates up to 1 Mbit/s and a driver output slew rate of 24 V/
μ
s to 150 V/
μ
s.
Flexible control options for power management are available when the serial port is inactive. The
auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of
operation, if the devices do not sense a valid RS-232 signal on the receiver input, the driver output is disabled.
If FORCEOFF is set low and EN is high, both the driver and receiver are shut off, and the supply current is
reduced to 1
μ
A. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown
condition to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With
auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver
input. The INVALID output notifies the user if an RS-232 signal is present at the receiver input. INVALID is high
(valid data) if the receiver input voltage is greater than 2.7 V or less than 2.7 V, or has been between 0.3 V
and 0.3 V for less than 30
μ
s. INVALID is low (invalid data) if the receiver input voltage is between 0.3 V and
0.3 V for more than 30
μ
s. Refer to Figure 5 for receiver input levels.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SSOP (DB)
Reel of 2000
SN75C3221DBR
CA3221
0 C to 70 C
TSSOP (PW)
Tube of 90
SN75C3221PW
CA3221
Reel of 2000
SN75C3221PWR
SSOP (DB)
Reel of 2000
Tube of 90
SN65C3221DBR
SN65C3221PW
CB3221
40 C to 85 C
TSSOP (PW)
CB3221
Reel of 2000
SN65C3221PWR
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
2004, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
DB OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
EN
C1+
V+
C1
C2+
C2
V
RIN
FORCEOFF
V
CC
GND
DOUT
FORCEON
DIN
INVALID
ROUT
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相关PDF资料 |
PDF描述 |
|---|---|
| SN65C3222DW | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| SN65C3223E_07 | 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVERS/RECEIVERS WITH 【15-kV ESD PROTECTION |
| SN65HVD22EVM | SN65HVD22 Evaluation Module(SN65HVD22评估模块) |
| SN65HVD2 | EXTENDED COMMON-MODE RS-485 TRANSCEIVERS |
| SN65HVD3082(中文) | LOW-POWER RS-485 TRANSCEIVER(低功耗RS-485接口) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN65C3221E | 制造商:TI 制造商全称:Texas Instruments 功能描述:3-V TO 5.5-V TWO-CHANNEL RS-232 1-MBIT/S LINE DRIVERS/RECEIVERS WITH 【15-kV IEC ESD PROTECTION |
| SN65C3221EDB | 功能描述:RS-232接口集成电路 RS-232 1 Mbit/s Line Driver/Receiver 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: |
| SN65C3221EDBG4 | 功能描述:RS-232接口集成电路 3V To 5.5V MultiCh RS-232 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: |
| SN65C3221EDBR | 功能描述:RS-232接口集成电路 RS-232 1 Mbit/s Line Driver/Receiver 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: |
| SN65C3221EDBRG4 | 功能描述:RS-232接口集成电路 3V To 5.5V MultiCh RS-232 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: |
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