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For 2032 Cell, 33.2 x 23.9mm, 2mm height above PCB, https://www.keyelco.com/userAssets/file/M65p4.pdf Keystone type 3008 coin cell vertical Panasonic CR-3032/VCN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D508.PDF battery CR-3032 coin cell retainer Keystone type 3034 coin cell battery holder, Memory Protection Devices P/N BA9VPC, http://www.memoryprotectiondevices.com/datasheets/BA9VPC-datasheet.pdf PP3 Battery Holder SMD Tactile Switch, https://www.e-switch.com/system/asset/product_line/data_sheet/165/TL3342.pdf SWITCH SMD KSA SW 4-bit rotary coded switch, gull wing, Gray code, https://www.nidec-copal-electronics.com/e/catalog/switch/sh-7000.pdf SMD SMT crystal oscillator Miniature Crystal Clock Oscillator TXC 7C series, http://www.txccorp.com/download/products/osc/7C_o.pdf, hand-soldering, 5.0x3.2mm^2 package SMD Crystal EuroQuartz MQ series http://cdn-reichelt.de/documents/datenblatt/B400/MQ.pdf, 7.0x5.0mm^2 package Miniature Crystal Clock Oscillator TXCO.

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