Clicca qui per visitare il sito Utsource
Ciao! Accesso O Registra immediatamente
APP Libretto dei dati 380K likes Utsource
1.2 Million+ Like Utsource
Acquista(0)
Richiesta di prezzo (0)
Dear customers, due to the implementation of the GDPR policy in Europe, UTSOURCE has also made adjustment accordingly to meet the policy requirements. Please read the new privacy policy carefully and this window will no longer pop up after you accept it.
Delivery Address
+ Aggiungi l'indirizzo
Nuovo indirizzo di spedizione
* Si prega di inserire correttamente il numero di cellulare per assicurarsi di poter ricevere le informazioni di tracciamento in tempo.
Codice paese
Preferito
Utsource certified used parts
Le parti usate certificate Utsource offrono le seguenti garanzie:
1. Utsource ispezionerà le merci, compresa l'ispezione dell'aspetto (nessun danno grave all'aspetto), selezionerà fornitori qualificati e onesti e garantirà un tasso di qualificazione del 98%.
2. Alcune parti sono testate dalla macchina.
3. Le parti certificate Utsource possono essere restituite e rimborsate incondizionatamente entro 60 giorni.
La descrizione del prodotto
IC RTC CLK/CALENDAR PAR 28-EDIP
Tutti i nomi di prodotti, marchi, marchi e loghi utilizzati in questo sito sono di proprietà dei rispettivi proprietari. La rappresentazione, la descrizione o la vendita di prodotti con questi nomi, marchi, marchi e loghi è solo a scopo identificativo e non intende indicare alcuna affiliazione o autorizzazione da parte di alcun titolare dei diritti.
I parametri e gli indicatori di prestazione di questo prodotto provengono da Internet. In caso di discrepanze, fare riferimento alle specifiche tecniche del produttore.！
FEATURES
● Integrated NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit and Lithium Energy Source
● Clock Registers are Accessed Identically to the Static RAM. These Registers Reside in the Eight Top RAM Locations.
● Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power
● Access Times of 70ns and 100ns
● BCD-Coded Year, Month, Date, Day, Hours, Minutes, and Seconds with Leap Year Compensation Valid Up to 2100
● Power-Fail Write Protection Allows for ±10% VCC Power Supply Tolerance
● Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
● DS1643 Only (DIP Module)
● Standard JEDEC Byte-Wide 8K x 8 RAM Pinout
● UL Recognized
● DS1643P Only (PowerCap Module Board) Surface Mountable Package for Direct
Connection to Power Cap Containing
Battery and Crystal
Replaceable Battery (Power Cap)
Power-Fail Output
Pin-for-Pin Compatible with Other Densities of DS164XP Timekeeping RAM
DESCRIPTION
The DS1643 is an 8K x 8 nonvolatile static RAM with a full function Real Time Clock (RTC) that are both accessible in a byte-wide format. The nonvolatile timekeeping RAM is functionally equivalent to any JEDEC standard 8K x 8 SRAM. The device can also be easily substituted in ROM, EPROM and EEPROM sockets providing read/write nonvolatility and the addition of the real time clock function. The real time clock information resides in the eight uppermost RAM locations. The RTC registers contain year, month, date, day, hours, minutes, and seconds data in 24-hour BCD format. Corrections for the day of the month and leap year are made automatically. The RTC clock registers are double-buffered to avoid access of incorrect data that can occur during clock update cycles. The double-buffered system also prevents time loss as the timekeeping countdown continues unabated by access to time register data. The DS1643 also contains its own power-fail circuitry, which deselects the device when the VCC supply is in an out of tolerance condition. This feature prevents loss of data from unpredictable system operation brought on by low VCC as errant access and update cycles are avoided.
PACKAGES
The DS1643 is available in two packages: 28-pin DIP module and 34-pin Power Cap module. The 28-pin DIP style module integrates the crystal, lithium energy source, and silicon all in one package. The 34-pin Power Cap Module Board is designed with contacts for connection to a separate Power Cap (DS9034PCX) that contains the crystal and battery. This design allows the Power Cap to be mounted on top of the DS1643P after the completion of the surface mount process. Mounting the Power Cap after the surface mount process prevents damage to the crystal and battery due to high temperatures required for solder reflow. The Power Cap is keyed to prevent reverse insertion. The Power Cap Module Board and Power Cap are ordered separately and shipped in separate containers. The part number for the Power Cap is DS9034PCX.
CLOCK OPERATIONS—READING THE CLOCK
While the double-buffered register structure reduces the chance of reading incorrect data, internal updates to the DS1643 clock registers should be halted before clock data is read to prevent reading of data in transition. However, halting the internal clock register updating process does not affect clock accuracy. Updating is halted when a one is written into the read bit, the seventh most significant bit in the control register. As long as a 1 remains in that position, updating is halted. After a halt is issued, the registers reflect the count, that is day, date, and time that was current at the moment the halt command was issued. However, the internal clock registers of the double-buffered system continue to update so that the clock accuracy is not affected by the access of data. All of the DS1643 registers are updated simultaneously after the clock status is reset. Updating is within a second after the read bit is written to 0.
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $18.65700 | US $16.79130 | US $16.79130 |
| ≥5: | US $17.62050 | US $15.85845 | US $79.29225 |
| ≥10: | US $17.10225 | US $15.39203 | US $153.92030 |
| ≥20: | US $16.58400 | US $14.92560 | US $298.51200 |
| ≥50: | US $16.06575 | US $14.45918 | US $722.95900 |
| ≥100: | US $15.85845 | US $14.27260 | US $1427.26000 |
| ≥200: | US $15.54750 | US $13.99275 | US $2798.55000 |
| ≥500: | US $15.34020 | US $13.80618 | US $6903.09000 |
| ≥1000: | US $15.02925 | US $13.52632 | US $13526.32000 |
Prodotto Sostitutivo
| Substitute Product | Description |
|---|---|
| M48T08-100PC1 | 8Kb NVRAM, 100ns, DIP-28 package, integrated lithium cell for data retention |
| M48T35AV-10MH1 | NVRAM, 4Mbit (512K x 8), 100ns, DIP-28 package, battery-backed SRAM with RTC capabilities |
| DS1744-100 | 4Mbit NVRAM, 512K x 8, 100ns, DIP-32 package, integrated battery, RTC features |
| M48T58Y-70PC1 | Timekeeper NVRAM, 4Mbit, 70ns, DIP-28 package, built-in lithium cell, RTC functionalities |
| M48T86PC1 | Timekeeper NVRAM, 16K x 8, 150ns, DIP-28 package, integrated battery for data retention |
Utilizzo del Prodotto
The DS1643-100+ is a non-volatile static RAM with an integrated real-time clock. It combines a 32K x 8 SRAM with a real-time clock, providing a convenient solution for applications requiring both memory and timing functions. Some of the typical circuits and applications that use the DS1643-100+ include:
In these applications, the DS1643-100+ is valued for its ability to retain data in its SRAM during power losses and provide consistent real-time clock capabilities. This combination of functions can simplify the design and increase the reliability of systems requiring precise timekeeping and non-volatile memory.
Elenco dei paesi per la logistica globale
| Bandiera | Nazione | Tempo di consegna stimato | Costo minimo del primo peso | ||
|---|---|---|---|---|---|
| Corriere | Spedizione standard | Corriere (0.5kg) | Spedizione standard (0.05kg) | ||
EspandereOrdine
Pagamento
Trasporto merci
Buono regalo / servizio Plus
Reso
I resi sono accettati se completati entro 90 giorni dalla data di consegna del pacco.
Pacchi difettosi (fornire un rapporto di qualità per terze parti di prodotti non conformi)
Le spese di trasporto del reso devono essere prepagate; non accetteremo spedizioni in contrassegno.
Politica di Garanzia
Tutti gli acquisti di UTSOURCE prevedono una politica di restituzione di 90 giorni, più una garanzia UTSOURCE di 100 giorni per eventuali difetti di fabbricazione, funzionamento scorretto o improprio.
DS1643-100+
DS1643-100+ ha diversi marchi in tutto il mondo che possono avere nomi alternativi per DS1643-100+ a causa di differenze regionali o acquisizioni. DS1643-100+ può anche essere noto come i seguenti nomi:
EspandereOPZIONI DI ACQUISTO
Stato di inventario: 5000
Minimo: 1
Prezzo totale:
Prezzo unitario:18.65700 OBSOLETO
Spedizione gratuita sui primi 0,5 kg per ordini superiori ai US $300.00（Tranne gli Stati Uniti）
Corriere: Arrivo previsto {0}
Consegna standard: Arrivo previsto {0}
Paese:
United States
Expresso: (FEDEX, UPS, DHL,TNT)Spedizione gratuita sui primi 0,5 kg per ordini superiori ai 300$,in caso di peso superiore è previsto un costo ulteriore(Tranne gli Stati Uniti)
UTSOURCE
0 venditori Scelte
{{pro.Parameter.Brand}}
{{pro.encapsulation}}
{{pro.Parameter.DateCode}}
{{pro.brief}}
Minimo:{{pro.BuyQuantity}}
Consegna standard
Corriere: Arrivo previsto {0}
Consegna standard: Arrivo previsto {0}
Ferma gli esperti di produzione, siamo in grado di fornire un gran numero di componenti elettronici che sono stati interrotti e che sono difficili da trovare, per facilitare la società di manutenzione
Stock
Reply to
submitNumero verde a disposizione
(888) 766 5577 USA & Canada
+52 5515436027
+52 5515436028 Messico
+49 6931090199 Germania
+1 (657) 605-6198 USA
+52 5641347253 Messico
Casella di posta elettronica
PAGAMENTI GLOBALI
Logistica globale
Required
