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M48T201Y-85MH1 Просмотр технического описания (PDF) - STMicroelectronics

Номер в каталоге
Компоненты Описание
производитель
M48T201Y-85MH1
ST-Microelectronics
STMicroelectronics ST-Microelectronics
M48T201Y-85MH1 Datasheet PDF : 37 Pages
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M48T201Y, M48T201V
List of figures
List of figures
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Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SOIC connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
GCON timing when switching between RTC and external SRAM . . . . . . . . . . . . . . . . . . . . 11
Read cycle timing: RTC and external RAM control signals . . . . . . . . . . . . . . . . . . . . . . . . 12
Write cycle timing: RTC and external RAM control signals. . . . . . . . . . . . . . . . . . . . . . . . . 14
Alarm interrupt reset waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Backup mode alarm waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
RSTIN1 and RSTIN2 timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Crystal accuracy across temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Calibration waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Supply voltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
AC testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Power down/up mode AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
SOH44 – 44-lead plastic small outline, SNAPHAT®, package outline . . . . . . . . . . . . . . . . 31
SH – 4-pin SNAPHAT® housing for 48 mAh battery & crystal, package outline. . . . . . . . . 32
SH – 4-pin SNAPHAT® housing for 120 mAh battery & crystal, pack. outline . . . . . . . . . . 33
Recycling symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
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