Datasheet 搜索 > Dallas Semiconductor（达拉斯半导体） > DS2502+ 数据手册 > DS2502+ 其他数据使用手册 1/24 页
￥ 15.831
DS2502+ 其他数据使用手册 - Dallas Semiconductor（达拉斯半导体）
制造商:
Dallas Semiconductor（达拉斯半导体）
封装:
TO-92
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
导航目录
DS2502+数据手册
Page:
of 24 Go
若手册格式错乱，请下载阅览PDF原文件
FEATURES
1024 bits Electrically Programmable Read
Only Memory (EPROM) communicates with
the economy of one signal plus ground
Unique, factory-lasered and tested 64-bit
registration number (8-bit family code + 48-
bit serial number + 8-bit CRC tester) assures
absolute traceability because no two parts are
alike
Built-in multidrop controller ensures
compatibility with other MicroLAN products
EPROM partitioned into four 256-bit pages
for randomly accessing packetized data
Each memory page can be permanently
write-protected to prevent tampering
Device is an “add only” memory where
additional data can be programmed into
EPROM without disturbing existing data
Architecture allows software to patch data by
superseding an old page in favor of a newly
programmed page
Reduces control, address, data, power, and
programming signals to a single data pin
Directly connects to a single port pin of a
microprocessor and communicates at up to
16.3 kbits per second
8-bit family code specifies DS2502
communications requirements to reader
Presence detector acknowledges when the
reader first applies voltage
Low cost TO-92, SFN, or 8-pin SO, SOT-23
(3-pin), TSOC and WLP surface mount
package
Reads over a wide voltage range of 2.8V to
6.0V from -40°C to +85°C; programs at
11.5V to 12.0V from -40°C to +50°C
PIN ASSIGNMENT
1
2
+09rrd
WLP, Top View with
Laser Mark, Contacts
Not Visible.
“rrd” = Revision/Date
1A, 1B = DATA
2A, 2B = GND
A
B
SFN (APPROX. 6.0mm x 6.0mm x 0.9mm)
BOTTOM VIEW
SIDE VIEW
1 2
SFN PINOUT:
PIN 1: IO
PIN 2: GND
NOTE: THE SFN PACKAGE IS QUALIFIED FOR ELECTRO-MECHANICAL
CONTACT APPLICATIONS ONLY, NOT FOR SOLDERING. FOR MORE
INFORMATION, REFER TO APPLICATION NOTE 4132: ATTACHMENT
METHODS FOR THE ELECTRO-MECHANICAL SFN PACKAGE.
DATA
1
2
3
6
5
4
TOP VIEW
TSOC PACKAGE
GND
NC
NC
NC
NC
1
2
3
4
8
7
6
5
NC
NC
NC
NC
NC
NC
DATA
GND
8-PIN SO (150 MIL)
DS2502
1Kb Add-Only Memory
GND
DATA
NC
BOTTOM VIEW
TO-92
DS2502
2
3
1
SOT-23 Package
Top View
1 2
3
09rr
1 = DATA; 2, 3 = GND
“rr” = Revision
19-5075; Rev 8/14
1 of 24
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
