M51957BL Renesas Electronics America, M51957BL Datasheet
M51957BL
Specifications of M51957BL
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M51957BL Summary of contents
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To our customers, Old Company Name in Catalogs and Other Documents st On April 1 , 2010, NEC Electronics Corporation merged with Renesas Technology Corporation, and Renesas Electronics Corporation took over all the business of both companies. Therefore, although the ...
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All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please confirm ...
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M51957A,B/M51958A,B Voltage Detecting, System Resetting IC Series Description M51957A,B/M51958A,B are semiconductor integrated circuits for resetting of all types of logic circuits such as CPUs, and has the feature of setting the detection voltage by adding external resistance. They include a ...
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M51957A,B/M51958A,B Block Diagram M51957A, B Power- A: Built-in Load supply B: Open Collector 5µA Typ – Input – + 1.25V GND Delay capacitor Operating Waveform M51957A, B 1.25V ≈ 0.34 × Cd(pF) µs REJ03D0778-0300 Rev.3.00 Sep ...
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M51957A,B/M51958A,B Absolute Maximum Ratings Item Symbol Supply voltage V CC Output sink current Isink Output voltage V O Power dissipation Pd Thermal derating Kθ Operating temperature Topr Storage temperature Tstg Input voltage range V IN Electrical Characteristics • “L” reset ...
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M51957A,B/M51958A,B Typical Characteristics Thermal Derating (Maximum Rating) 500 5-pin SIP 8-pin SOP 400 (PRSP0008DE-C) : recommend 300 200 100 Ambient Temperature Ta (°C) Detection Voltage vs. Supply Voltage (Input voltage detection series) 1.28 1.27 1.26 1.25 ...
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M51957A,B/M51958A,B Canstant Current at Cd pin vs. Ambient Temperature (M5195xx, External delay capacitor type) – 15V CC –10 –8 –6 –4 –2 0 –40 – Ambient Temperature Ta (°C) Output Saturation Voltage ...
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M51957A,B/M51958A,B Example of Application Circuit Reset Circuit of M5195xx Series R 1 Input R 2 Notes: 1. When the detecting supply voltage is 4.25 V, M51951, M51952, M51953 and M51954 are used. In this case, R and R are not ...
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M51957A,B/M51958A,B Delay Waveform Generating Circuit When M51957 and M51958 are used, a waveform with a large delay time can generate only by adding a small capacitor Figure 3 Delay Waveform Generating Circuit Operating Waveform (a) M51957 Input (V ...
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M51957A,B/M51958A,B Notice for use About the Power Supply Line 1. About bypass capacitor Because the ripple and the spike of the high frequency noise and the low frequency are superimposed to the power supply line necessary to remove ...
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M51957A,B/M51958A,B Independent Power-supply Input M51957 Vin M51958 GND Example 1. Independent power supply system Please do enough verifying about transition characteristic of V and Calculation of detecting voltage Detecting voltage ...
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M51957A,B/M51958A,B Setting of Delay Capacity Please use capacitor Cd for the delay within the range of 10 µF or less. When a value that is bigger than this is set, the problem such as following (1), (2), and (3) becomes ...
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M51957A,B/M51958A,B Setting of Output Load Resistance (M51957B/M51958B) High level output voltage can be set without depending on the power-supply voltage because the output terminal is an open collector type. However, please guard the following notes. 1. Please set it in ...
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M51957A,B/M51958A,B Package Dimensions 5P5T EIAJ Package Code JEDEC Code – SIP5-P-240-2. SEATING PLANE JEITA Package Code RENESAS Code P-SOP8-4.4x4.85-1.27 PRSP0008DE Index mark REJ03D0778-0300 Rev.3.00 Sep 18, 2007 Page Weight(g) ...
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M51957A,B/M51958A,B JEITA Package Code RENESAS Code P-SOP8-4.4x5-1.27 PRSP0008DA Index mark * REJ03D0778-0300 Rev.3.00 Sep 18, 2007 Page Previous Code MASS[Typ.] 8P2S-A 0.07g NOTE) 1. DIMENSIONS "*1" ...
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Notes: 1. This document is provided for reference purposes only so that Renesas customers may select the appropriate Renesas products for their use. Renesas neither makes warranties or representations with respect to the accuracy or completeness of the information contained ...