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參數(shù)資料
| 型號： | DS2223 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DRAM |
| 英文描述： | EconoRAM(經(jīng)濟型RAM) |
| 中文描述： | 256 X 1 STANDARD SRAM, 1000 ns, PBCY3 |
| 封裝： | TO-92, 3 PIN |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 65K |
| 代理商： | DS2223 |
DS2223/DS2224
EconoRAM
DS2223/DS2224
020698 1/10
1
FEATURES
Low–cost, general–purpose, 256–bit memory
– DS2223 has 256–bit SRAM
– DS2224 has 32–bit ROM, 224–bit SRAM
Reduces control, address and data interface to a
single pin
Each DS2224 32–bit ROM is factory–lasered with a
unique serial number
DS2224 portion of ROM with custom code and unique
serial number available
Minimal operating power: 45 nanocoulombs per
transaction @1.5V typical
Less than 15 nA standby current at 25
°
C
Nonvolatile data retention easily achieved via low–
cost alkaline batteries or capacitors
Directly connects to a port pin of popular microcontrol-
lers
Operation from 1.2 to 5.5 volts
Popular TO–92 or SOT–223 surface mount package
Operates over industrial temperature range –40
°
C to
+85
°
C
DESCRIPTION
The DS2223 and DS2224 EconoRAMs are fully static,
micro–powered, read/write memories in low–cost
TO–92 or SOT–223 packages. The DS2223 is orga-
nized as a serial 256 x 1 bit static read/write memory.
The DS2224’s first 32 bits are lasered with a unique ID
code at the time of manufacture; the remaining 224 bits
are static read/write memory. Signaling necessary for
reading or writing is reduced to just one interface lead.
PACKAGE OUTLINE
1
2
3
1
2
3
1
2
3
4
SOT–223
TOP VIEW
See Mech. Drawings
Section
BOTTOM VIEW
See Mech. Drawings
Section
TO–92
PIN CONNECTIONS
Pin 1
GND
Pin 2
DQ
Pin 3
V
CC
Pin 4
GND
– Ground
– Data In/Out
– Supply
– Ground
ORDERING INFORMATION
DS2223
256–bit SRAM – TO–92 Package
DS2223Z
256–bit SRAM – SOT–223 Package
DS2223T
1000 piece tape–and–reel of DS2223
DS2223Y
2500 piece tape–and–reel of DS2223Z
DS2224
32–bit serial number (ROM), 224–bit
SRAM – TO–92 Package
DS2224Z
32–bit serial number (ROM), 224–bit
SRAM – SOT–223 Package
DS2224T
1000 piece tape–and–reel of DS2224
DS2224Y
2500 piece tape–and–reel of DS2224Z
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2224 | EconoRAM(經(jīng)濟型RAM) |
| DS2227 | Flexible NV SRAM Stik(靈活的非易失性SRAM) |
| DS2229 | Word-Wide 8Meg SRAM Stik(字寬度的8M SRAM) |
| DS2401 | Silicon Serial Number(硅串行數(shù)據(jù)) |
| DS2404-c01 | Dual Port Memory Plus Time(雙端口存儲器+定時) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2223T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EconoRAM |
| DS2223Y | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EconoRAM |
| DS2223Z | 制造商:Maxim Integrated Products 功能描述: |
| DS2224 | 制造商:Maxim Integrated Products 功能描述: |
| DS2224T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EconoRAM |
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