4Kb Plus Time Memory iButton?

iButton DESCRIPTION The DS1994 Memory iButton is a rugged read/write data carrier that acts as a localized database, easily accessible with minimal hardware. The nonvolatile memory and optional timekeeping capability offer a simple solution to storing and retrieving vital information pertaining t

文件：634.21 Kbytes 頁數(shù)：23 Pages

MAXIM

美信

4kb Plus Time Memory iButton

iButton DESCRIPTION The DS1994 Memory iButton is a rugged read/write data carrier that acts as a localized database, easily accessible with minimal hardware. The nonvolatile memory and optional timekeeping capability offer a simple solution to storing and retrieving vital information pertaining t

文件：254.71 Kbytes 頁數(shù)：22 Pages

DALLAS

iButton 4K位、帶有時鐘的存儲器

iButton? 4Kb、帶有時鐘的存儲器(DS1994)是一款堅固耐用的讀/寫數(shù)據(jù)載體，可用作本地數(shù)據(jù)庫，僅需極少的硬件即可訪問。非易失存儲器和可選的計時功能提供一種存儲和獲取已安裝iButton器件中重要信息的方案。數(shù)據(jù)可通過1-Wire?協(xié)議串行傳輸，僅需要單根數(shù)據(jù)線和返回地線。\n 暫存器是輔助的存儲頁，充當(dāng)寫入存儲器時的緩沖器。數(shù)據(jù)首先被存入暫存器，并可從這里讀回。在數(shù)據(jù)經(jīng)過驗(yàn)證后，復(fù)制暫存器命令將數(shù)據(jù)寫入存儲器，這個過程保證了修改存儲器時數(shù)據(jù)的完整性。每個DS1994芯片具有工廠激光刻度的48位序列號，提供唯一的身份識別，以保證產(chǎn)品的絕對可溯性。堅固耐用的MicroCan具有優(yōu)異的 \n? 4096位讀/寫非易失性存儲器 \n? 256位暫存器保證數(shù)據(jù)傳輸?shù)耐暾?\n? 存儲器分成256位頁面，便于數(shù)據(jù)打包 \n? 嚴(yán)格的讀/寫協(xié)議保證了數(shù)據(jù)的完整性 \n? 內(nèi)置二進(jìn)制格式的實(shí)時時鐘/日歷 \n? 上電后時間間隔計時器可自動累加時間 \n? 可編程周期計數(shù)器累計系統(tǒng)電源開/關(guān)的次數(shù) \n? 可編程鬧鐘可設(shè)置為間隔計時器、實(shí)時時鐘或周期計數(shù)器產(chǎn)生中斷 \n? 寫保護(hù)功能防止時間數(shù)據(jù)錯誤修改 \n? 可編程終止日期限制訪問SRAM和計時器 \n? 25°C時，時鐘精度優(yōu)于±2分鐘/月 \n? 工作溫度范圍-40°C至+70°C \n? 數(shù)據(jù)保存超過10年;

ADI

亞德諾

4kb Plus Time Memory iButton

iButton DESCRIPTION The DS1994 Memory iButton is a rugged read/write data carrier that acts as a localized database, easily accessible with minimal hardware. The nonvolatile memory and optional timekeeping capability offer a simple solution to storing and retrieving vital information pertaining t

文件：254.71 Kbytes 頁數(shù)：22 Pages

DALLAS

1kbit/4kbit Memory iButtonTM DS1994 4-kbit Plus Time Memory iButtonTM

iButton DESCRIPTION The DS1992/DS1993 memory iButtons (hereafter referred to as DS199_) are rugged read/write data carriers that act as a localized database, easily accessible with minimal hardware. The nonvolatile memory and optional timekeeping capability offer a simple solution to storing and

文件：537.37 Kbytes 頁數(shù)：17 Pages

DALLAS

4Kb Plus Time Memory iButton?

iButton DESCRIPTION The DS1994 Memory iButton is a rugged read/write data carrier that acts as a localized database, easily accessible with minimal hardware. The nonvolatile memory and optional timekeeping capability offer a simple solution to storing and retrieving vital information pertaining t

文件：634.21 Kbytes 頁數(shù)：23 Pages

MAXIM

美信