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M48T129Y датащи(PDF) 1 Page - STMicroelectronics |
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M48T129Y датащи(HTML) 1 Page - STMicroelectronics |
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1 / 28 page ![]() June 2010 Doc ID 5710 Rev 4 1/28 1 M48T129Y M48T129V 5.0 or 3.3 V, 1 Mbit (128 Kbit x 8) TIMEKEEPER® SRAM Features ■ Integrated, ultra low power SRAM, real-time clock, power-fail control circuit, battery, and crystal ■ BCD coded century, year, month, day, date, hours, minutes, and seconds ■ Battery low warning flag ■ Automatic power-fail chip deselect and WRITE protection ■ Two WRITE protect voltages: (VPFD = power-fail deselect voltage) –M48T129Y: VCC = 4.5 to 5.5 V 4.2 V ≤ VPFD ≤ 4.5 V –M48T129V: VCC = 3.0 to 3.6 V 2.7 V ≤ VPFD ≤ 3.0 V ■ Conventional SRAM operation; unlimited WRITE cycles ■ Software controlled clock calibration for high accuracy applications ■ 10 years of data retention and clock operation in the absence of power ■ Self-contained battery and crystal in DIP package ■ Microprocessor power-on reset (valid even during battery backup mode) ■ Programmable alarm output active in battery backup mode ■ RoHS compliant – Lead-free second level interconnect 32 1 PMDIP32 module (PM) www.st.com |
Аналогичный номер детали - M48T129Y |
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Аналогичное описание - M48T129Y |
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