group
74HC574 Octal D Flip-Flop, 3-State
Public Made by Adomby adom
2 interchangeable 74HC574 parts (octal d flip-flop, 3-state) from 2 manufacturer(s), 74HC family.
← Commit history
74hc574-flip-flops: class group page from component-ocean logic-ics
2 files changed
+90−68
README.md+24@@ -1,3 +1,27 @@ # 74HC574 Octal D Flip-Flop, 3-State 2 interchangeable 74HC574 parts (octal d flip-flop, 3-state) from 1 manufacturer(s), 74HC family.++Anything on this page is the same logical part: function code **574** (Octal D Flip-Flop, 3-State) in the **74HC** family. Pick by package and manufacturer.++## Members++| Part page | Manufacturer | Package |+|---|---|---|+| [SN74HC574NSR](https://wiki.adom.inc/ray/sn74hc574nsr) | Texas Instruments | |+| [SN74HC574PW](https://wiki.adom.inc/ray/sn74hc574pw) | Texas Instruments | |++## The 74HC family++The workhorse CMOS family. Wide supply range, full rail-to-rail outputs, CMOS input thresholds (Vih ≈ 0.7·Vcc). Sometimes marketed as MM74HC by Onsemi/Fairchild and MC74HC by Onsemi.++| | |+|---|---|+| Supply range | 2.0 to 6.0 V (typ. 5.0 V) |+| Input threshold | CMOS |+| 5 V tolerant inputs | no |+| Speed class | fast |++## Provenance++Grouped by component-ocean's logic-ics parser (`definitions/logic-ics/`), which resolves each vendor MPN to a family_id. Membership is recomputed from the published pages; it is not hand-curated.
page.json+66−68@@ -1,71 +1,69 @@ {- "schema_version": 1,- "slug": "74hc574-flip-flops",- "type": "component",- "kind": "group",- "version": "0.1.0",- "title": "74HC574 Octal D Flip-Flop, 3-State",- "brief": "2 interchangeable 74HC574 parts (octal d flip-flop, 3-state) from 1 manufacturer(s), 74HC family.",- "because": "CLASS group page: the shared home for every 74HC574. A designer who needs a octal d flip-flop, 3-state in the 74HC family searches for 74HC574, not for a vendor's ordering code; the 2 MPN pages below are functionally substitutable and differ only in manufacturer and package. Derived from component-ocean's logic-ics definitions.",- "hero": {- "type": "billboard",- "headline": "74HC574 Octal D Flip-Flop, 3-State",- "subhead": "2 interchangeable parts, one logical function."+ "schema_version": 1,+ "slug": "74hc574-flip-flops",+ "type": "component",+ "kind": "group",+ "version": "0.1.0",+ "title": "74HC574 Octal D Flip-Flop, 3-State",+ "brief": "2 interchangeable 74HC574 parts (octal d flip-flop, 3-state) from 1 manufacturer(s), 74HC family.",+ "because": "CLASS group page: the shared home for every 74HC574. A designer who needs a octal d flip-flop, 3-state in the 74HC family searches for 74HC574, not for a vendor's ordering code; the 2 MPN pages below are functionally substitutable and differ only in manufacturer and package. Derived from component-ocean's logic-ics definitions.",+ "hero": {+ "type": "billboard",+ "headline": "74HC574 Octal D Flip-Flop, 3-State",+ "subhead": "2 interchangeable parts, one logical function."+ },+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ },+ "tags": [+ "logic",+ "74hc",+ "flip-flop"+ ],+ "license": "proprietary",+ "visibility": {+ "public": true+ },+ "sample_prompts": [],+ "discovery_triggers": [+ "74HC574",+ "74hc574",+ "74HC574 Octal D Flip-Flop, 3-State"+ ],+ "discovery_pitch": "Every 74HC574 on the wiki, cross-vendor, as one substitutable class.",+ "metadata": {+ "group_tier": "class",+ "member_count": 2,+ "family_id": "74HC574",+ "logic_family": "74HC",+ "function_code": "574",+ "function_class": "Flip-Flop"+ },+ "component": {+ "mpn": "74HC574",+ "manufacturer": "",+ "package": "",+ "pin_count": null,+ "category": "Logic ICs",+ "subcategory": "Flip-Flop",+ "body_size": null,+ "parts": {},+ "distributor_links": {},+ "logic": {+ "family_id": "74HC574",+ "logic_family": "74HC",+ "function_code": "574",+ "function_class": "Flip-Flop",+ "function_name": "Octal D Flip-Flop, 3-State" },- "tags": [- "logic",- "74hc",- "flip-flop"- ],- "license": "proprietary",- "visibility": {- "public": true- },- "sample_prompts": [],- "discovery_triggers": [- "74HC574",- "74hc574",- "74HC574 Octal D Flip-Flop, 3-State"- ],- "discovery_pitch": "Every 74HC574 on the wiki, cross-vendor, as one substitutable class.",- "metadata": {- "group_tier": "class",- "member_count": 2,- "family_id": "74HC574",- "logic_family": "74HC",- "function_code": "574",- "function_class": "Flip-Flop"- },- "component": {- "mpn": "74HC574",- "manufacturer": "",- "package": "",- "pin_count": null,- "category": "Logic ICs",- "subcategory": "Flip-Flop",- "body_size": null,- "parts": {},- "distributor_links": {},- "logic": {- "family_id": "74HC574",- "logic_family": "74HC",- "function_code": "574",- "function_class": "Flip-Flop",- "function_name": "Octal D Flip-Flop, 3-State"- },- "group": {- "tier": "class",- "member_count": 2,- "members": [- "SN74HC574NSR",- "SN74HC574PW"- ]- }- },- "author": {- "name": "Ray",- "email": "[email protected]"- },- "created_at": "2026-09-11T14:37:16.387Z",- "updated_at": "2026-09-11T14:37:16.387Z"+ "group": {+ "tier": "class",+ "member_count": 2,+ "members": [+ "SN74HC574NSR",+ "SN74HC574PW"+ ]+ }+ } }