您的位置：维库电子市场网 > Datasheet > DS2505
DS2505数据手册封面

DS2505 Datasheet

  • DS2505

  • 16-kbit Add-Only Memory

  • 499.10KB

  • Dallas

阅览下载 纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

DS2505
NOTES:
1. All voltages are referenced to ground.
2. V
PUP
= external pullup voltage. If V
PUP
is lower than 3.0V the first byte read (any read command)
may not reproduce the correct memory contents. Therefore, under low voltage conditions, it is
recommended to set either the most significant bit or all five most significant bits of TA2 to 1.
Internal circuitry of the chip will force these 5 bits back to 0
before
they are shifted in the address
counter and CRC generator.
3. Input load is to ground.
4. An additional reset or communication sequence cannot begin until the reset high time has expired.
5. Read data setup time refers to the time the host must pull the 1-Wire bus low to read a bit. Data is
guaranteed to be valid within 1 碌s of this falling edge and will remain valid for 14 碌s minimum.
(15 碌s total from falling edge on 1-Wire bus.)
6. V
IH
is a function of the external pullup resistor and V
PUP
.
7. 30 nanocoulombs per 72 time slots @ 5.0V.
8. At V
CC
=5.0V with a 5 k鈩?pullup to V
CC
and a maximum time slot of 120 碌s.
9. Capacitance on the data pin could be 800 pF when power is first applied. If a 5 k鈩?resistor is used to
pull up the data line to V
CC
, 5 碌s after power has been applied the parasite capacitance will not affect
normal communications.
10. Under certain low voltage conditions V
ILMAX
may have to be reduced to as much as 0.5V to always
guarantee a presence pulse.
11. Operational temperature range for memory programming is -40掳C to +50掳C.
12. For read-data time slots the optimal sampling point for the master is as close as possible to the end of
the t
RDV
period without exceeding the 15 碌s window. For the case of a read-one time slot, this
maximizes the amount of time for the pull-up resistor to recover the line to a high land. For a read-
zero time slot it ensures that a read will occur before the fastest 1-Wire device releases the line
(t
RELEASE
= 0)
24 of 24

DS2505 产品属性

  • 1

  • 集成电路 (IC)

  • 存储器

  • -

  • EPROMs

  • EPROM OTP

  • 16K（16K x 1）

  • -

  • 1 线 串行

  • -

  • -40°C ~ 85°C

  • TO-226-3、TO-92-3 标准主体

  • TO-92-3

  • 散装

DS2505相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2024 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：

0571-85317607

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！