最新免费av在线观看,亚洲综合一区成人在线,中文字幕精品无码一区二区三区,中文人妻av高清一区二区,中文字幕乱偷无码av先锋

MAX3243ECAI+ Datasheet

  • MAX3243ECAI+

  • IC RS232 TRANSCEIVER 250KBPS 5.5V SSOP28; Device Type:RS232 ...

  • 310.00KB

  • 18頁

  • Maxim   Maxim

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

1碌A(chǔ) Supply-Current, True +3V to +5.5V
RS-232 Transceivers with AutoShutdown
______________________________________________________________Pin Description
PIN
MAX3221
1
5
6
7
8
13
11
9
鈥?/div>
10
16
12
4
14
15
3
2
MAX3223
1
5
6
7
9, 16
8, 17
12, 13
10, 15
鈥?/div>
11
20
14
4
18
19
3
2
MAX3243
鈥?/div>
1
2
3
4鈥?
9, 10, 11
12, 13, 14
15鈥?9
20
21
22
23
24
25
26
27
28
NAME
EN
C2+
C2-
V-
R_IN
T_OUT
T_IN
R_OUT
R2OUTB
INVALID
FORCEOFF
FORCEON
C1-
GND
V
CC
V+
C1+
FUNCTION
Receiver Enable Control. Drive low for normal operation. Drive high to force
the receiver outputs into a high-Z state.
Positive terminal of inverting charge-pump capacitor
Negative terminal of inverting charge-pump capacitor
-5.5V generated by the charge pump
RS-232 Receiver Inputs
RS-232 Transmitter Outputs
TTL/CMOS Transmitter Inputs
TTL/CMOS Receiver Outputs
Noninverting Receiver Output鈥攁ctive in shutdown
Output of the valid signal detector. Indicates if a valid RS-232 level is pres-
ent on receiver inputs logic 鈥?鈥?
Drive low to shut down transmitters and on-board power supply. This over-
rides all automatic circuitry and FORCEON (Table 1).
Drive high to override automatic circuitry keeping transmitters on
(FORCEOFF must be high) (Table 1).
Negative terminal of the voltage doubler charge-pump capacitor
Ground
+3.0V to +5.5V Supply Voltage
+5.5V generated by the charge pump
Positive terminal of the voltage doubler charge-pump capacitor
MAX3221/MAX3223/MAX3243
_______________Detailed Description
Dual Charge-Pump Voltage Converter
The MAX3221/MAX3223/MAX3243鈥檚 internal power
supply consists of a regulated dual charge pump that
provides output voltages of +5.5V (doubling charge
pump) and -5.5V (inverting charge pump), regardless
of the input voltage (V
CC
) over the +3.0V to +5.5V
range. The charge pumps operate in a discontinuous
mode: if the output voltages are less than 5.5V, the
charge pumps are enabled; if the output voltages
exceed 5.5V, the charge pumps are disabled. Each
charge pump requires a flying capacitor (C1, C2) and
a reservoir capacitor (C3, C4) to generate the V+ and
V- supplies.
RS-232 Transmitters
The transmitters are inverting level translators that con-
vert CMOS-logic levels to 5.0V EIA/TIA-232 levels. They
guarantee a 120kbps data rate with worst-case loads of
3k鈩?in parallel with 1000pF, providing compatibility with
PC-to-PC communication software (such as Laplink鈩?.
Typically, the MAX3221/MAX3223/MAX3243 can oper-
ate at data rates of 235kbps. Transmitters can be paral-
leled to drive multiple receivers or mice (MAX3243).
Figure 1 shows a complete system connection.
When
FORCEOFF
is driven to ground, or the Auto-
Shutdown circuitry senses invalid voltage levels at all
receiver inputs, the transmitters are disabled and the
outputs are forced into a high-impedance state.
LapLink is a trademark of Traveling Software.
_______________________________________________________________________________________
5

MAX3243ECAI+ 產(chǎn)品屬性

  • Lead (SnPb) Finish for COTSObsolescence Mitigation Program

  • 46

  • 集成電路 (IC)

  • 接口 - 驅(qū)動器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • 3/5

  • RS232

  • 3 V ~ 5.5 V

  • 表面貼裝

  • 28-SSOP（0.209"，5.30mm 寬）

  • 28-SSOP

  • 管件

MAX3243ECAI+相關(guān)型號PDF文件下載

  • 型號
    版本
    描述
    廠商
    下載
  • 英文版
    Precision, Dual, High-Speed Analog Switches
    MAXIM [Max...
  • 英文版
    Precision, Dual, High-Speed Analog Switches
    Maixm
  • 英文版
    Precision, Dual, High-Speed Analog Switches
    Maixm
  • 英文版
    Precision, 16-Channel/Dual 8-Channel, High-Performance, High...
    Maixm
  • 英文版
    Precision, 16-Channel/Dual 8-Channel, High-Performance, CMOS...
    MAXIM
  • 英文版
    Precision, 16-Channel/Dual 8-Channel, High-Performance, High...
    Maixm
  • 英文版
    Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS ...
    Maixm
  • 英文版
    Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS ...
    MAXIM
  • 英文版
    Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS ...
    Maixm
  • 英文版
    CMOS RF/Video Multiplexers
    MAXIM
  • 英文版
    CMOS RF/Video Multiplexers
    Maixm
  • 英文版
    Quad SPST CMOS Analog Switches
    MAXIM
  • 英文版
    CMOS RF/Video Multiplexers
    Maixm
  • 英文版
    10з, Quad, SPST, CMOS Analog Switches
    MAXIM
  • 英文版
    10, Quad, SPST, CMOS Analog Switches
    Maixm
  • 英文版
    10з, Quad, SPST, CMOS Analog Switches
    MAXIM
  • 英文版
    10, Quad, SPST, CMOS Analog Switches
    Maixm
  • 英文版
    10, Quad, SPST, CMOS Analog Switches
    Maixm
  • 英文版
    Precision, CMOS Analog Switches
    MAXIM
  • 英文版
    Precision, CMOS Analog Switches
    Maixm

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！