XR-3448 Datasheet | Exar

DESCRIPTION The XR-3448 Floppy Disk Read/Nrite is a single 28 Pin monolithic solution for double-sided floppy disk drives. The device is patible with 8". 5)1., ... and 3Y2" drives. providing all read and write functions and offering improved performance over industry standard dual chip sets. with lower external parts count. Schmitt trigger inputs and separate analog and power grounds aid noise and crosstalk immunity. Both pre and post amplifiers. plus an AGC. allow reliable operation with input signals ranging from 0.5 m V to 25m V. The XR-3448 is available in standard or small outline 28 Pin packages. Control. write inputs. and read outputs are TTL patible. The device operates from +12 V and +5 V supplies. The pinout is specially designed for similarity.to the SSI-570 Read/Nrite. and in many applications. the XR-3448 acts as an improved version of that device. FEATURES All Read/Write Functions on a Single Chip Schmitt Trigger Inputs for...