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[118.93.176.83]) by smtp.gmail.com with ESMTPSA id q12sm39853pfs.48.2020.03.31.13.48.39 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 31 Mar 2020 13:48:40 -0700 (PDT) From: Brent Brown To: Microcontroller discussion list - Public. Sender: "piclist-bounces@mit.edu" Date: Tue, 31 Mar 2020 13:48:36 -0700 Subject: Re: [EE] Identifying pin one Thread-Topic: [EE] Identifying pin one Thread-Index: AdYHnwcRbpwOfP1iQGecsZ6GY8If6A== Message-ID: <5E83ACA4.26909.433CB86B@brent.eds.co.nz> References: List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: None (protection.outlook.com: eds.co.nz does not designate permitted sender hosts) dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=eds-co-nz.20150623.gappssmtp.com; s=20150623; h=from:organization:to:date:mime-version:subject:message-id:priority :in-reply-to:references:content-transfer-encoding :content-description; bh=NQawjz9JwtB8NlMnWCowqL2X9F1fKlS1xc9xCLWqtME=; b=RVUOvzZ4jeqwzgGgE40pd8VZMvLnr3cBUN2ZOeMvnfjC+qQEcoNudzxHeFJp9Oi63i widSwq22TbteXSDP8hGFf1z/9dN44uQ3e1iw+C/FlIUGFwEnU8RXJNlrvKbiIf1IXEKi PeM9HZu4UyLG3Mu52kCU4Mu6DwOy4BObnieGxWRZKSbqLofkASviD8UHzXvDedaAIAGw a/JsDeyZdD82I/KKNM5aN8q3wde0vsWFlEUFU16m2z02Vjy+F/wUJXwdUDqq3rJcjBXo 3PBmnYeBhUNQCY5I8SzpDMVw5TZxFPL6iKyXhB+Wa9Y9d3vtYmRikHvjrk45FI69e8kR QNmw== authentication-results: spf=none (sender IP is 209.85.215.172) smtp.mailfrom=eds.co.nz; mit.edu; dkim=pass (signature was verified) header.d=eds-co-nz.20150623.gappssmtp.com; mit.edu; dmarc=none action=none header.from=eds.co.nz; errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-received: by 2002:a63:4b1c:: with SMTP id y28mr2919403pga.375.1585687721583; Tue, 31 Mar 2020 13:48:41 -0700 (PDT) x-topics: [EE] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Seems to be a reasonable assumption, confidence boosted by the picture here= =20 showing a dot near the bottom left pin... https://uk.rs-online.com/web/p/schmitt-trigger-inverters/6628926/ Datasheet does indicate what orientation they will be on tape/reel, and pac= kage=20 outline drawings show "pin 1 index area" - but nothing on what to expect to= see in=20 that area. On 31 Mar 2020 at 16:42, David C Brown wrote: > I have purchases some > SN74LVC2G14DBVr chips in SOT23-6 packages and, with great difficulty, > mounted one of them on a DIP adaptor >=20 > But I am not sure which is pin 1 and the datasheet is unhelpful. > The chips bear the word C145 and my guess is that if that is the right wa= y > up > pin 1 is the lower left. Can anyone confirm this? > __________________________________________ > David C Brown > 43 Bings Road > Whaley Bridge > High Peak Phone: 01663 733236 > Derbyshire eMail: dcb.home@gmail.com > SK23 7ND web: www.bings-knowle.co.uk/dcb > >=20 >=20 >=20 > *Sent from my etch-a-sketch* > --=20 > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .