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M48T201Y 数据表(PDF) 5 Page - STMicroelectronics

部件名 M48T201Y
功能描述  5.0 or 3.3 V TIMEKEEPER® supervisor
PDF  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M48T201Y 数据表(HTML) 5 Page - STMicroelectronics

  M48T201Y Datasheet HTML 1Page - STMicroelectronics M48T201Y Datasheet HTML 2Page - STMicroelectronics M48T201Y Datasheet HTML 3Page - STMicroelectronics M48T201Y Datasheet HTML 4Page - STMicroelectronics M48T201Y Datasheet HTML 5Page - STMicroelectronics M48T201Y Datasheet HTML 6Page - STMicroelectronics M48T201Y Datasheet HTML 7Page - STMicroelectronics M48T201Y Datasheet HTML 8Page - STMicroelectronics M48T201Y Datasheet HTML 9Page - STMicroelectronics Next Button
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M48T201Y, M48T201V
List of figures
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List of figures
Figure 1.
Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2.
SOIC connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3.
Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 4.
GCON timing when switching between RTC and external SRAM . . . . . . . . . . . . . . . . . . . . 11
Figure 5.
Read cycle timing: RTC and external RAM control signals . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 6.
Write cycle timing: RTC and external RAM control signals. . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 7.
Alarm interrupt reset waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 8.
Backup mode alarm waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 9.
RSTIN1 and RSTIN2 timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 10.
Crystal accuracy across temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 11.
Calibration waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 12.
Supply voltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 13.
AC testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 14.
Power down/up mode AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 15.
SOH44 – 44-lead plastic small outline, SNAPHAT®, package outline . . . . . . . . . . . . . . . . 31
Figure 16.
SH – 4-pin SNAPHAT® housing for 48 mAh battery & crystal, package outline. . . . . . . . . 32
Figure 17.
SH – 4-pin SNAPHAT® housing for 120 mAh battery & crystal, pack. outline . . . . . . . . . . 33
Figure 18.
Recycling symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35



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