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Holtek Ht9170b 18DIP DTMF Receiver
Holtek-HT9170-DTMF-Receiver-Holtek-HT9170B-p-DTMF-receiver-2-5V-to-5-5V-supply-voltage-10uA-standby-current-3-58MHz-system-frequency-3mA-operating-current-2-5mA-output-drive-current-100kR-pull-high-resistance-20-to-75-C-18-DIP-case-the-HT9170B-D-are-dual-tone-multi-frequency-DTMF-receivers-integrated-with-digital-decoder-and-band-split-filter-functions-as-well-as-power-down-mode-and-inhibit-mode-operations-such-devices-use-digital-counting-techniques-to-detect-and-decode-all-th
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