This document describes the features and characteristics of SAA5264 and SAA5265 intelligent teletext decoders, including a complete 625 line teletext decoder in one chip, automatic detection of transmitted fastext links or service information, on-screen display for user interface menus, video programming system decoding, wide screen signalling decoding, support for multiple character sets, high-level command interface via I2C-bus, backward compatibility with Stand-Alone Fastext And Remote Interface (SAFARI), support for 625 and 525 line display, etc.
The SAA5264 and SAA5265 are integrated‑circuit teletext decoders from Philips Semiconductors. The SAA5264 provides ten pages of 625‑line teletext with on‑screen display, while the SAA5265 offers a single‑page version. Both chips include high‑level I²C command interfaces and support multiple character sets.
Key features include automatic fastext detection, video programming system decoding, wide‑screen signalling, and a versatile 8‑bit open‑drain I/O expander. The devices are supplied in a 52‑lead SDIP package and operate from a 3.3 V supply with a 12 MHz crystal oscillator.
| Supply voltage (Vopx) range | 3.0 V min – 3.6 V max (typ 3.3 V) |
|---|---|
| Core supply voltage | 3.3 V |
| Ambient temperature range | -20 °C to +70 °C |
| Storage temperature range | -55 °C to +125 °C |
| Idle mode supply current | up to 6 mA |
| Package type | SDIP52 plastic shrink dual‑in‑line, 52 leads |
Pan‑European, Cyrillic, Greek/Turkish, and French/Arabic character sets are included.
The SAA5264 is supplied in an SDIP52 plastic shrink dual‑in‑line package with 52 leads.