Talk:PMOS logic

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What is P ?[edit]

What is P ? 122.177.209.42 (talk) 03:06, 2011-01-26 (UTC)

"PMOS transistor" means "p-channel MOS transistor". Circuit dreamer (talk, contribs, email) 12:32, 26 January 2011 (UTC)[reply]

P type Silicon is used. NMOS uses N type Silicon.Zen-in (talk) 15:20, 26 January 2011 (UTC)[reply]

Should be totally re-written, relevant info missing, irrelevant given[edit]

The definition is clearly off-topic. Both PMOS and NMOS contain BOTH p-doped AND n-doped regions, so the definition as given would apply to NMOS as well! It is not clear whether PMOS stands for p-n-p or n-p-n geometry. Defining which is which would be the main reason to have this article. (I do not think the topic deserves a separate article anyway but not flagging for now).

The article should only focus on what is specific to P-MOS. Statements like "PMOS transistors have four modes of operation: cut-off (or subthreshold), triode, saturation (sometimes called active), and velocity saturation" seem to refer to a general property of MOS transistors; if so they are irrelevant and should be removed or put in context. 12.104.156.31 (talk) 17:20, 15 June 2012 (UTC)[reply]

Logic levels[edit]

For reference Intel 4004 PMOS voltage levels.

Symbol	Min	Max	Unit
V_SS	+15-5%	+15+5%	V
V_IL	V_DD	V_SS−5.5	V
V_IH	V_SS−1.5	V_SS+0.3	V
V_OL	V_SS−12	V_SS−6.5	V
V_OH	V_SS−0.5	V_SS	V

4004 datasheet Bytesock (talk) 15:02, 11 April 2016 (UTC)[reply]