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參數(shù)資料
| 型號(hào)： | M48T02-150PC1 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP24 |
| 封裝： | 0.600 INCH, ROHS COMPLIANT, PLASTIC, DIP-24 |
| 文件頁數(shù)： | 25/25頁 |
| 文件大?。?/td> | 199K |
| 代理商： | M48T02-150PC1 |
M48T02, M48T12
Operation modes
2.2
Write mode
The M48T02/12 is in the WRITE mode whenever W and E are active. The start of a WRITE
is referenced from the latter occurring falling edge of W or E. A WRITE is terminated by the
earlier rising edge of W or E. The addresses must be held valid throughout the cycle. E or W
must return high for a minimum of tEHAX from chip enable or tWHAX from WRITE enable prior
to the initiation of another READ or WRITE cycle. Data-in must be valid tDVWH prior to the
end of WRITE and remain valid for tWHDX afterward. G should be kept high during WRITE
cycles to avoid bus contention; although, if the output bus has been activated by a low on E
and G, a low on W will disable the outputs tWLQZ after W falls.
Figure 5.
Write enable controlled, write AC waveform
Figure 6.
Chip enable controlled, write AC waveforms
AI01331
tAVAV
tWHAX
tDVWH
DATA INPUT
A0-A10
E
W
DQ0-DQ7
VALID
tAVWH
tAVEL
tWLWH
tAVWL
tWLQZ
tWHDX
tWHQX
AI01332B
tAVAV
tEHAX
tDVEH
A0-A10
E
W
DQ0-DQ7
VALID
tAVEH
tAVEL
tAVWL
tELEH
tEHDX
DATA INPUT
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48T02-150PC1 | 制造商:STMicroelectronics 功能描述:SRAM TIMEKEEPER 16K 48T02 DIP24 |
| M48T02-150PC1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0V, 16 Kbit (2Kb x 8) TIMEKEEPER㈢ SRAM |
| M48T02-200PC1 | 功能描述:實(shí)時(shí)時(shí)鐘 16K (2Kx8) 200ns RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M48T02-200PC1 | 制造商:STMicroelectronics 功能描述:IC SRAM TIMEKEEPER 16K |
| M48T02-200PC1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0V, 16 Kbit (2Kb x 8) TIMEKEEPER㈢ SRAM |
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