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DS1643-120中文資料亞德諾數(shù)據(jù)手冊(cè)PDF規(guī)格書
DS1643-120規(guī)格書詳情
DESCRIPTION
The DS1643 is a 8K x 8 nonvolatile static RAM with a full function Real Time Clock (RTC) which 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.
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 are resident in the eight top RAM locations.
Totally nonvolatile with over 10 years of operation in the absence of power
Access times of 70 ns and 100 ns
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 DS1643P only (PowerCap Module Board)
– Surface mountable package for direct connection to PowerCap containing battery and crystal
– Replaceable battery (PowerCap)
– Power-fail output
– Pin-for-pin compatible with other densities of DS164XP Timekeeping RAM
供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
---|---|---|---|---|---|---|---|
DALLAS |
23+ |
DIP-28 |
3200 |
全新原裝、誠(chéng)信經(jīng)營(yíng)、公司現(xiàn)貨銷售 |
詢價(jià) | ||
DALLAS |
23+ |
43521 |
##公司主營(yíng)品牌長(zhǎng)期供應(yīng)100%原裝現(xiàn)貨可含稅提供技術(shù) |
詢價(jià) | |||
DALLAS |
22+ |
DIP |
12245 |
現(xiàn)貨,原廠原裝假一罰十! |
詢價(jià) | ||
DALLAS |
24+ |
DIP |
600 |
原裝現(xiàn)貨假一賠十 |
詢價(jià) | ||
2023+ |
DIP-28 |
3000 |
進(jìn)口原裝現(xiàn)貨 |
詢價(jià) | |||
DALLAS |
2122+ |
PDIP |
11190 |
全新原裝正品現(xiàn)貨,優(yōu)勢(shì)渠道可含稅,假一賠十 |
詢價(jià) | ||
DALLAS |
22+ |
DIP-28 |
30000 |
十七年VIP會(huì)員,誠(chéng)信經(jīng)營(yíng),一手貨源,原裝正品可零售! |
詢價(jià) | ||
DALLAS |
23+ |
DIP-28 |
3000 |
原裝正品假一罰百!可開增票! |
詢價(jià) | ||
DALLAS |
23+ |
DIP |
9526 |
詢價(jià) | |||
DALLAS |
9805+ |
PDIP |
220 |
交期準(zhǔn)時(shí) 服務(wù)周到 |
詢價(jià) |