L290 Datasheet PDF - STMicroelectronics

DESCRIPTION
The L290, a monolithic LSI circuit in 16-lead inline plastic package,is intended for user with the L291 and L292 which together from a complete 3-chip DC motor positioning system for applications such as carriage/daisy-wheel position control in typewriters.
The L290/1/2 system can be directly controlled by a microprocessor. The L290 integrates the follow ing functions:
    - tacho voltage generator (F/V converter)
    - reference voltage generator
    - position pulse generator