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            11年
            企業信息

            深圳市中源盛科電子有限公司

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            會員年限:11年

            謝R QQ:386121453

            電話:18617151221

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            監控電路 CPU w/2K.CAT1025WI-30-GT3
            監控電路 CPU w/2K.CAT1025WI-30-GT3
            <>

            監控電路 CPU w/2K.CAT1025WI-30-GT3

            型號:

            .CAT1025WI-30-GT3

            封裝:

            SOIC-8

            批號:

            18+

            包裝:

            3000

            PDF資料:

            點擊下載PDF

            產品信息

            Precision Power Supply Voltage Monitor
            — 5 V, 3.3 V and 3 V systems
            — Five threshold voltage options
            Active High or Low Reset
            — Valid reset guaranteed at VCC = 1 V
            400 kHz I
            2
            C Bus
            2.7 V to 5.5 V Operation
            Low power CMOS technology
            16-Byte Page Write Buffer
            Built-in inadvertent write protection
            — WP pin (CAT1025)
            1,000,000 Program/Erase cycles
            Manual Reset Input
            100 year data retention
            Industrial and extended temperature ranges
            Green packages available with NiPdAu Lead
            finished
            For Ordering Information details, see page 19.
            DESCRIPTION
            The CAT1024 and CAT1025 are complete memory
            and supervisory solutions for microcontroller-based
            systems. A 2k-bit serial EEPROM memory and a
            system power supervisor with brown-out protection
            are integrated together in low power CMOS techno–
            logy. Memory interface is via a 400 kHz I
            2
            C bus.
            The CAT1025 provides a precision VCC sense circuit
            and two open drain outputs: one (RESET) drives high
            and the other (RESET ¯¯¯¯¯¯) drives low whenever VCC falls
            below the reset threshold voltage. The CAT1025 also
            has a Write Protect input (WP). Write operations are
            disabled if WP is connected to a logic high.
            The CAT1024 also provides a precision VCC sense
            circuit, but has only a RESET ¯¯¯¯¯¯ output and does not
            have a Write Protect input.
            The power supply monitor and reset circuit protect
            memory and system controllers during power up/down
            and against brownout conditions. Five reset threshold
            voltages support 5 V, 3.3 V and 3 V systems. If power
            supply voltages are out of tolerance reset signals
            become active, preventing the system microcontroller,
            ASIC or peripherals from operating. Reset signals
            become inactive typically 200 ms after the supply
            voltage exceeds the reset threshold level. With both
            active high and low reset signals, interface to
            microcontrollers and other ICs is simple. In addition,
            the RESET ¯¯¯¯¯¯ pin or a separate input, MR ¯¯¯, can be used
            as an input for push-button manual reset capability.
            The CAT1024/25 memory features a 16-byte page. In
            addition, hardware data protection is provided by a
            VCC sense circuit that prevents writes to memory
            whenever VCC falls below the reset threshold or until
            VCC reaches the reset threshold during power up.
            Available packages include an 8-pin PDIP and a
            surface mount 8-pin SO, 8-pin TSSOP, 8-pin TDFN
            and 8-pin MSOP packages. The TDFN package thick
            ness is 0.8 mm maximum. TDFN footprint is 3 x 3 mm
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