音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

DS2480S Datasheet

  • DS2480S

  • Serial 1.Wire Line Driver

  • 189.60KB

  • 26頁

  • DALLAS   DALLAS

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預覽

DS2480
Serial
1鈥揥ire
TM
DS2480
Line Driver
FEATURES
鈥?/div>
Universal, common鈥揼round serial port to 1鈥揥ire
TM
line driver for MicroLAN
TM
applications
PIN ASSIGNMENT
GND
1鈥揥
NC
V
DD
1
2
3
4
8
7
6
5
RXD
TXD
POL
V
PP
鈥?/div>
Works
with all iButtons and MicroLAN鈥揷ompatible
1鈥揥ire slave devices
鈥?/div>
Communicates
鈥?/div>
Supports
at regular and Overdrive 1鈥揥ire
speed and serial port data rates of 9600 (default),
19200, 57600 and 115200 bps
12V EPROM programming and stiff 5V
pull鈥搖p for Crypto iButton, sensors and EEPROM
time base with
鹵5%
tolerance for
serial and 1鈥揥ire communication
rate controlled 1鈥揥ire pull鈥揹own and active
pull鈥搖p to accommodate long lines and reduce radi-
ation
polarity minimizes com-
ponent count when interfacing to 5V based RS232
systems or directly to UARTs
tics accommodate a wide range of MicroLAN configu-
rations at regular speed
GND
1鈥揥
NC
V
DD
V
PP
POL
TXD
RXD
8鈥揚IN SOIC
(150 MIL)
PIN DESCRIPTION
Ground
1鈥揥ire Input/Output
No Connection
4.5 to 5.5 Volts
Optional EPROM
Programming Voltage
RXD/TXD Polarity Select
Serial Data from UART
Serial Data to UART
鈥?/div>
Self鈥揷alibrating
鈥?/div>
Slew
鈥?/div>
User鈥搒electable RXD/TXD
鈥?/div>
Programmable 1鈥揥ire timing and driver characteris-
鈥?/div>
Smart protocol combines data and control information
without requiring extra pins
ORDERING INFORMATION
DS2480S
8鈥損in SOIC
鈥?/div>
Compatible to optical, IR and RF to RS232 converters
鈥?/div>
Low cost 8鈥損in SOIC surface mount package
鈥?/div>
Operates over 4.5V to 5.5V from 鈥?0擄C to +85擄C
DESCRIPTION
The DS2480 is a serial port to 1鈥揥ire interface chip that
supports standard and Overdrive speeds. It connects
directly to UARTs and 5V RS232 systems. Interfacing to
RS232C (鹵 12V levels) requires a passive clamping cir-
cuit and one 5V to
鹵
12V level translator. Internal timers
relieve the host of the burden of generating the time鈥?/div>
critical 1鈥揥ire communication waveforms. In contrast
to the DS9097(E) where a full character must be sent by
the host for each 1鈥揥ire time slot, the DS2480 can
translate each character into eight 1鈥揥ire time slots
thereby increasing the data throughput significantly. In
addition, the DS2480 can be set to communicate at four
different data rates including 115.2 kbps, 57.6 kbps and
19.2 kbps with 9.6 kbps being the power鈥搊n default.
Command codes received from the host鈥檚 crystal con-
trolled UART serve as a reference to continuously cali-
brate the on鈥揷hip timing generator. The DS2480 uses a
unique protocol that merges data and control informa-
tion without requiring control pins. This approach main-
tains compatibility to off鈥搕he鈥搒helf serial to wireless
converters allowing easy realization of 1鈥揥ire media
jumpers. The various control functions of the DS2480
are optimized for MicroLAN 1鈥揥ire networks and sup-
port the special needs of all current 1鈥揥ire devices
including the Crypto iButton, EPROM鈥揵ased Add鈥揙nly
Memories, EEPROM devices and 1鈥揥ire Thermome-
ters.
042498 1/26

DS2480S相關型號PDF文件下載

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：
賣家服務：
技術客服：

0571-85317607

網(wǎng)站技術支持

13606545031

客服在線時間周一至周五
9:00-17:30

關注官方微信號，
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的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！