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DS9034PCX Datasheet(PDF) 1 Page - ARTSCHIP ELECTRONICS CO.,LMITED. |
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DS9034PCX Datasheet(HTML) 1 Page - ARTSCHIP ELECTRONICS CO.,LMITED. |
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1 / 11 page  DS1643/DS1643P Nonvolatile Timekeeping RAM www.artschip.com 1 FEATURES Integrated NV SRAM, real time clock, crystal, power-fail control circuit and lithium energy source Clock registers are accessed identically to the static RAM. These registers are resident in the eight top RAM locations. Totally nonvolatile with over 10 years of operation in the absence of power Access times of 70 ns and 100 ns BCD coded year, month, date, day, hours, minutes, and seconds with leap year compensation valid up to 2100 Power-fail write protection allows for ±10% Vcc power supply tolerance Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time DS1643 only (DIP Module) -Standard JEDEC byte-wide 8K x 8 RAM pinout DS1643P only (PowerCap Module Board) -Surface mountable package for direct connection to PowerCap containing battery and crystal -Replaceable battery (PowerCap) -Power-fail Output -Pin-for-pin compatible with other densities of DS164XP Timekeeping RAM ORDERING INFORMATION PIN ASSIGNMENT 28-PIN Encapsulated Package (700-mil Extended) 34-PIN PowerCap Module Board (USES DS9034PCX PowerCap) PIN DESCRIPTION A0-A12 CE2 Vcc -Address Input -Chip Enable -Chip Enable 2 (DIP Module only) -Output Enable -Write Enable -+5 Volts GND DQ0-DQ7 NC X1,X2 VBAT -Ground -Data Input/Output -No Connect -Power-on Reset Output (PowerCap Module board only) -Crystal Connection -Battery Connection |
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Similar Description - DS9034PCX |
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