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參數(shù)資料
| 型號(hào)： | DS2501-UNW |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | DRAM |
| 英文描述： | UniqueWare Add Only Memory(專用只加存儲(chǔ)器) |
| 中文描述： | 512 X 1 OTPROM, PBCY3 |
| 封裝： | TO-92, 3 PIN |
| 文件頁(yè)數(shù)： | 1/1頁(yè) |
| 文件大?。?/td> | 20K |
| 代理商： | DS2501-UNW |
DS2501–UNW/DS2502–UNW
UniqueWare
TM
Add Only Memory
DS2501–UNW/DS2505–UNW
021998 1/1
SPECIAL FEATURES
512 bits (DS2501–UNW) or 1024 bits (DS2502–UNW)
Electrically Programmable Read Only Memory
(EPROM) communicates with the economy of one sig-
nal plus ground
Unique, factory-lasered and tested 64–bit registration
number (8–bit family code, 36–bit serialization, 12–bit
UniqueWare Identifier 5E7H, 8–bit CRC–tester)
assures absolute traceability because no two parts are
alike. Family code 91H for the DS2501–UNW, 89H for
the DS2502–UNW
Built–in multidrop controller ensures compatibility with
other MicroLAN
TM
products
EPROM partitioned into two (DS2501–UNW) or four
(DS2502–UNW) 256–bit pages for randomly accessing
packetized data records
Each memory page can be permanently write–pro-
tected to prevent tampering
Device is an “add only” memory where additional data
can be programmed into EPROM without disturbing
existing data
Reduces control, address, data, power and program-
ming signals to a single pin
Directly connects to a single port pin of a microproces-
sor and communicates at up to 16.3k bits per second
Presence detector acknowledges when reader first
applies voltage
Low cost TO–92 or 8–pin SOIC and TSOC surface
mount packages
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
3
2
1
DALLAS
DS2501/2
-UNW
TO–92
BOTTOM VIEW
See Mech. Drawings
Section
1
2
3
4
8
7
6
5
TSOC PACKAGE
1 2 3
6 5 4
TOP VIEW
3.7 X 4.0 X 1.5 mm
See Mech. Drawings
Section
8–Pin SOIC
(150 MIL)
See Mech. Drawings
Section
3
2
1
PIN ASSIGNMENT
TO–92
Ground
Data
NC
––––
––––
TSOC
Ground
Data
NC
NC
NC
SOIC
NC
NC
Data
Ground
NC
Pin 1
Pin 2
Pin 3
Pin 4
Pins 5 to 8
ORDERING INFORMATION
DS2501–UNW
DS2501S–UNW
DS2501P–UNW
DS2502–UNW
DS2502S–UNW
DS2502P–UNW
TO–92 package
8–pin SOIC package
6–pin TSOC package
TO–92 package
8–pin SOIC package
6–pin TSOC package
SILICON LABEL DESCRIPTION
The DS2501–UNW and DS2502–UNW are factory pro-
grammed versions of the DS2502 1K–bit Add–Only
Memory. They differ from the standard DS2502 in their
custom ROM family code 91H (DS2501–UNW) and
89H (DS2502–UNW) respectively, and the UniqueWare
Identifier 5E7 in place of the upper 12 bits of the stan-
dard serialization field. With the DS2501–UNW, the
upper two memory pages are not accessible; they
always read FFH and cannot be programmed. Other-
wise, the electrical and logical behavior is identical to
that of the DS2502. For technical details please refer to
the DS2502 data sheet.
The DS2501–UNW and DS2502–UNW are only avail-
able preprogrammed with customer specific and write–
protected UniqueWare data. Memory pages not used
for UniqueWare data can be programmed in the applica-
tion. For more details on UniqueWare, please refer to
the UniqueWare Project Setup Manual, available as
Application Note 99 from Dallas Semiconductor.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2502-UNW | UniqueWare Add Only Memory(專用只加存儲(chǔ)器) |
| DS2502-E64 | IEEE EUI-64 Node Address Chip(IEEE EUI-64 節(jié)地址芯片) |
| DS2502 | 1 kbit Add Only Memory(1K位只加存儲(chǔ)器) |
| DS2505 | 16K bit Add-Only Memory(16K位只加存儲(chǔ)器) |
| DS25LV02 | Low-Voltage 1024-Bit EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2502 | 功能描述:可擦除可編程ROM RoHS:否 制造商:Maxim Integrated 類型: 存儲(chǔ)容量:1024 bit 組織:1 K x 1 接口類型: 工作電流:5 uA 編程電壓: 工作電源電壓:2.8 V to 6 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:TO-92 |
| DS2502/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1 kbit Add-Only Memory |
| DS2502/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1 kbit Add-Only Memory |
| DS2502/T&R | 制造商:Maxim Integrated Products 功能描述:IC OTP 1KBIT TO92-3 |
| DS2502/T&R/SL | 制造商:Maxim Integrated Products 功能描述:IC OTP 1KBIT TO92-3 |
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