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參數(shù)資料
| 型號： | M48T35Y-70MH1E |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
| 封裝： | 0.330 INCH, SNAPHAT, ROHS COMPLIANT, PLASTIC, SOH-28 |
| 文件頁數(shù)： | 30/30頁 |
| 文件大?。?/td> | 256K |
| 代理商： | M48T35Y-70MH1E |
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M48T35 M48T35Y
Operation modes
If the address inputs are changed while E and G remain active, output data will remain valid
for output data hold time (tAXQX) but will go indeterminate until the next address access.
Figure 5.
Read mode AC waveforms
Note:
WRITE enable (W) = high.
Table 3.
Read mode AC characteristics
2.2
Write mode
The M48T35/Y is in the WRITE mode whenever W and E are low. 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
Symbol
Parameter(1)
1.
Valid for ambient operating temperature: TA = 0 to 70 or –40 to 85°C; VCC = 4.75 to 5.5 V or 4.5 to 5.5 V (except where
noted).
M48T35/Y
Unit
Min
Max
tAVAV
READ cycle time
70
ns
tAVQV
Address valid to output valid
70
ns
tELQV
Chip enable low to output valid
70
ns
tGLQV
Output enable low to output valid
35
ns
tELQX
(2)
2.
CL = 5 pF.
Chip enable low to output transition
5
ns
tGLQX
Output enable low to output transition
5
ns
tEHQZ
Chip enable high to output Hi-Z
25
ns
tGHQZ
Output enable high to output Hi-Z
25
ns
tAXQX
Address transition to output transition
10
ns
AI00925
tAVAV
tAVQV
tAXQX
tELQV
tELQX
tEHQZ
tGLQV
tGLQX
tGHQZ
VALID
A0-A14
E
G
DQ0-DQ7
VALID
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48T35Y-70MH1F | 功能描述:實時時鐘 256K (32Kx8) 70ns 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 時間格式:HH:MM:SS RTC 存儲容量: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 |
| M48T35Y-70MH1F-CUT TAPE | 制造商:ST 功能描述:M48T35Y Series 256 Kb (32 K x 8) 5.5 V 70 ns Timekeeper?SRAM - SOH-28 |
| M48T35Y-70MH1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V, 256 Kbit (32 Kb x 8) TIMEKEEPER SRAM |
| M48T35Y-70MH6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V, 256 Kbit (32 Kb x 8) TIMEKEEPER SRAM |
| M48T35Y-70MH6E | 功能描述:實時時鐘 256K (32Kx8) 70ns 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 時間格式:HH:MM:SS RTC 存儲容量: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 |
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