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参数资料
| 型号： | M48T59Y-70MH6F |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDSO28 |
| 封装： | 0.330 INCH, LEAD FREE, PLASTIC, SOH-28 |
| 文件页数： | 2/29页 |
| 文件大小： | 440K |
| 代理商： | M48T59Y-70MH6F |
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M48T59, M48T59Y, M48T59V*
10/29
Data Retention Mode
With valid VCC applied, the M48T59/Y/V operates
as a conventional BYTEWIDE static RAM.
Should the supply voltage decay, the RAM will au-
tomatically power-fail deselect, write protecting it-
self when VCC falls within the VPFD (max), VPFD
(min) window. All outputs become high imped-
ance, and all inputs are treated as “don't care.”
Note: A power failure during a WRITE cycle may
corrupt data at the currently addressed location,
but does not jeopardize the rest of the RAM's con-
tent. At voltages below VPFD (min), the user can be
assured the memory will be in a write protected
state, provided the VCC fall time is not less than tF.
The M48T59/Y/V may respond to transient noise
spikes on VCC that reach into the deselect window
during the time the device is sampling VCC. There-
fore, decoupling of the power supply lines is rec-
ommended.
When VCC drops below VSO, the control circuit
switches power to the internal battery which pre-
serves data and powers the clock. The internal
button cell will maintain data in the M48T59/Y/V for
an accumulated period of at least 7 years when
VCC is less than VSO. As system power returns
and VCC rises above VSO, the battery is discon-
nected and the power supply is switched to exter-
nal VCC. Deselect continues for trec after VCC
reaches VPFD (max).
For more information on Battery Storage Life refer
to the Application Note AN1012.
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PDF描述 |
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| M50734FP-10 | 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP72 |
| M50734SP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP64 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M48T59Y-70MH6TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM |
| M48T59Y-70PC1 | 功能描述:实时时钟 64K (8Kx8) 70ns RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| M48T59Y-70PC1 | 制造商:STMicroelectronics 功能描述:IC NVRAM 10 YR BATTERY 64K 48T59 |
| M48T59Y-70PC1E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 or 3.3 V, 64 Kbit (8 Kbit x 8) TIMEKEEPER? SRAM |
| M48T59Y-70PC1F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 or 3.3 V, 64 Kbit (8 Kbit x 8) TIMEKEEPER? SRAM |
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