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PCA1486U/10中文資料恩智浦?jǐn)?shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

PCA1486U/10
廠商型號(hào)

PCA1486U/10

功能描述

32 kHz watch circuits with adaptive motor pulse

文件大小

104.53 Kbytes

頁(yè)面數(shù)量

20 頁(yè)

生產(chǎn)廠商 NXP Semiconductors
企業(yè)簡(jiǎn)稱(chēng)

nxp恩智浦

中文名稱(chēng)

恩智浦半導(dǎo)體公司官網(wǎng)

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數(shù)據(jù)手冊(cè)

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更新時(shí)間

2024-12-25 17:55:00

PCA1486U/10規(guī)格書(shū)詳情

FEATURES

· 32 kHz oscillator, amplitude regulated with excellent

frequency stability

· High immunity of the oscillator to leakage currents

· Time calibration electrically programmable and

reprogrammable (via EEPROM)

· A quartz crystal is the only external component required

· Very low current consumption; typically 170 nA

· Output for bipolar stepping motors of different types

· Up to 50 reduction in motor current compared with

conventional circuits, by self adaption of the motor pulse

width in accordance with the required torque of the motor

· No loss of motor steps possible because of on-chip

detection of the induced motor voltage

· Indication for battery end-of-life

· Stop function for accurate timing

· Power-on reset for fast testing

· Various test modes for testing the mechanical parts of the watch and the IC.

GENERAL DESCRIPTION

The PCA148x series devices are CMOS integrated circuits

specially suited for battery-operated,

quartz-crystal-controlled wrist-watches, with a bipolar

stepping motor.

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