# IEC 823:1990 — Withdrawn and superseded ISO standards For IEC 823:1990, item title is Microprocessor system bus (VMSbus) — Serial sub-system bus of the IEC 821 Bus (VMEbus); status code is 9599; successor is IEC/FCD 823 | IEC 60823:1990; withdrawn / published date is 1990-09-01, recorded from its source on 2026-08-05. - **Identifier:** IEC 823:1990 _(verified: appears in the quote below)_ - **Item title:** Microprocessor system bus (VMSbus) — Serial sub-system bus of the IEC 821 Bus (VMEbus) _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** IEC/FCD 823 | IEC 60823:1990 - **Withdrawn / published date:** 1990-09-01 _(verified: appears in the quote below)_ ## What the source says > 5179,IS,,IEC 823:1990,Microprocessor system bus (VMSbus) — Serial sub-system bus of the IEC 821 Bus (VMEbus),Bus système à microprocesseurs (VMSbus) — Bus sous-système série du Bus CEI 821 (VMEbus),1990-09-01,1,['35.160'],ISO/IEC JTC 1/SC 25,9599,,"[19700,82000]","['en','fr']",319, ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).