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参数资料
| 型号： | M48T201V-85MH1E |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO44 |
| 封装： | SNAPHAT, ROHS COMPLIANT, PLASTIC, SOIC-44 |
| 文件页数： | 34/37页 |
| 文件大小： | 311K |
| 代理商： | M48T201V-85MH1E |
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Description
M48T201Y, M48T201V
1
Description
The M48T201Y/V are self-contained devices that include a real time clock (RTC),
programmable alarms, a watchdog timer, and a square wave output which provides control
of up to 512 K x 8 of external low-power static RAM. Access to all RTC functions and the
external RAM is the same as conventional bytewide SRAM. The 16 TIMEKEEPER
registers offer year, month, date, day, hour, minute, second, calibration, alarm, century,
watchdog, and square wave output data. Externally attached static RAMs are controlled by
the M48T201Y/V via the GCON and ECON signals.
The 44-pin, 330 mil SOIC provides sockets with gold plated contacts at both ends for direct
connection to a separate SNAPHAT housing containing the battery and crystal. The
unique design allows the SNAPHAT battery package to be mounted on top of the SOIC
package after the completion of the surface mount process.
Insertion of the SNAPHAT housing after reflow prevents potential battery damage due to the
high temperatures required for device surface-mounting. The SNAPHAT housing is keyed to
prevent reverse insertion. The SOIC and battery packages are shipped separately in plastic
anti-static tubes or in tape & reel form. For the 44-lead SOIC, the battery/crystal package
(e.g., SNAPHAT) part number is “M4Txx-BR12SH” (see Table 19 on page 34).
Caution:
Do not place the SNAPHAT battery/crystal top in conductive foam as this will drain the
lithium button-cell battery.
Figure 1.
Logic diagram
AI02240
19
A0-A18
WDI
DQ0-DQ7
VCC
M48T201Y
M48T201V
G
VSS
8
E
ECON
GCON
W
RSTIN2
RSTIN1
RST
IRQ/FT
VOUT
SQW
相关PDF资料 |
PDF描述 |
|---|---|
| M48T201Y-70MH1E | 1 TIMER(S), REAL TIME CLOCK, PDSO44 |
| M48T201V-85MH6TR | 1 TIMER(S), REAL TIME CLOCK, PDSO44 |
| M48T201Y-70MH6 | 1 TIMER(S), REAL TIME CLOCK, PDSO44 |
| M48T201Y-70MHTR | 1 TIMER(S), REAL TIME CLOCK, PDSO44 |
| M48T212V-70MH1 | 0 TIMER(S), REAL TIME CLOCK, PDSO44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M48T201V-85MH1F | 功能描述:监控电路 SRAM TK Controller RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| M48T201V-85MH1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 or 3.3V TIMEKEEPER㈢ supervisor |
| M48T201VMH | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:3.3V-5V TIMEKEEPER CONTROLLER |
| M48T201VSH | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:3.3V-5V TIMEKEEPER CONTROLLER |
| M48T201Y | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:3.3V-5V TIMEKEEPER CONTROLLER |
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