File:Ferranti Archives SPEC-FER-DAT-097 ULA 6C001 specification, issue 1, 26 August 1982.pdf
Summary
[edit | edit source]The first two sheets of Ferranti's specification for the ZX Spectrum ULA type 6C001, titled "Video display generator", issue 1, dated 26 August 1982. The header identifies the base array as the 6C000 series, current-mode logic, 528 cells. The cover sheet gives a 40-pin plastic DIL package, an operating range of 0 to 50 °C and 4.75 to 5.25 V, the grouping of the inputs, outputs and bidirectional pins, and two supplies: Vcc1 5 V ±5% and Vcc2 2 V nominal.
The second sheet is the D.C. characteristics table: typical supply currents of 40 mA from Vcc1 and 80 mA from Vcc2; input thresholds (0.8 V and 2.0 V for most inputs, 1.4 V and 2.8 V for the keyboard inputs KB0 to KB4, 0.4 V and 1.0 V for the TAPE/LS pin); input currents; output levels (RAS, CAS, DRAMWE, ROMCS and A0 to A6 at 0.5 V maximum with 16 mA sink, INT and the data lines at 8 mA, the CPU clock output 0.3 V low at 1 mA and 1.0 V high at 1 mA); and off-state leakage of 20 µA. The Membrain programs SPEC-FER-COD-091 and SPEC-FER-COD-092 test this part. Part of the Ferranti Archives 2026.
Archive record
[edit | edit source]| Catalogue ID | SPEC-FER-DAT-097 |
|---|---|
| Date | Issue 1, 26 August 1982 |
| Origin | Ferranti |
| Document type | Datasheet |
| Device or subject | 6C001 (Spectrum) |
| Catalogue description | ULA 6C001 Specification |
| Original file name | {{{filename|}}}
|
| Found in | SPEC-FER-FOL-098 |
| Pages | 2 |
Source
[edit | edit source]Ferranti Archives 2026, original scan on Google Drive.
Author
[edit | edit source]Ferranti Electronics Limited, Electronic Components Division
Licence
[edit | edit source]Ferranti Archives 2026: source and terms of use
This scan is part of the Ferranti Archives 2026, a collection of Sinclair-related documents from Ferranti's files, catalogued in 2026 and released through the Happy Little Diodes YouTube channel (video, catalogue). The archive presents the documents for preserving and archiving material of historical interest, and for non-commercial, educational and archival research. Its terms state that consent is strictly limited to non-commercial use, and that any commercial exploitation of the documents or their contents, including use in connection with the manufacture, marketing or sale of goods, is strictly prohibited by Sky UK Limited.
Copyright remains with the rights holders. The file is not freely licensed and is hosted here for preservation and repair reference only, under the archive's terms. Personal information was redacted by the archive before release; if you find any that remains, please tell [email protected].
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