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M48T201Y-70MH1 View Datasheet(PDF) - STMicroelectronics

Part Name
Description
Manufacturer
M48T201Y-70MH1
ST-Microelectronics
STMicroelectronics ST-Microelectronics
M48T201Y-70MH1 Datasheet PDF : 35 Pages
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List of figures
List of figures
M48T201Y, M48T201V
Figure 1.
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Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SOIC connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
GCON timing when switching between RTC and external SRAM . . . . . . . . . . . . . . . . . . . . 10
Read cycle timing: RTC and external RAM control signals . . . . . . . . . . . . . . . . . . . . . . . . 11
Write cycle timing: RTC and external RAM control signals. . . . . . . . . . . . . . . . . . . . . . . . . 13
Alarm interrupt reset waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Back-up mode alarm waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
RSTIN1 and RSTIN2 timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Crystal accuracy across temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Calibration waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Supply voltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
AC testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Power down/up mode AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SOH44 – 44-lead plastic small outline, SNAPHAT, package outline . . . . . . . . . . . . . . . . . 30
SH – 4-pin SNAPHAT housing for 48mAh battery & crystal, package outline . . . . . . . . . . 31
SH – 4-pin SNAPHAT housing for 120mAh battery & crystal, package outline . . . . . . . . . 32
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