HEF4521BPB データシート - Philips Electronics
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HEF4521BPB
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Philips Electronics
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The HEF4521B consists of a chain of 24 toggle flip-flops with an overriding asynchronous master reset input (MR), and an input circuit that allows three modes of operation. The single inverting stage (I2/O2) will function as a crystal oscillator, or in combination with I1as an RC oscillator, or as an input buffer for an external oscillator.
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CMOS MSI(LOW-POWER COMPLEMENTARY MOS) 24-STAGE FREQUENCY DIVIDER
Motorola => Freescale
14-stage ripple-carry binary counter/divider and oscillator ( Rev : 2016 )
NXP Semiconductors.
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