M754 Datasheet | SGS

~OS/MOS INTEGRATED CIRCUIT PRELIMINARY DATA 23 STAGE COUNTER WITH INTERMEDIATE OUTPUT AT THE 16th STAGE - LOW QUIESCENT POWER DISSIPATION - 25% OUTPUT PULSE DUTY CYCLE - WIDESUPPLYVOLTAGERANGE:3to17V - FULLY PROTECTED INPUTS - INVERTER AVAILABILITY FOR CRYSTAL OSCILLATOR TIMING APPLICATION - ADJUSTABLE FREQUENCY DIVIDER IN 127 STEPS - TEST OUTPUT AVAILABLE - MOTOR DRIVER BRIDGE CONFIGURATION OUTPUT The M754 (standard temperature range) is a 23 stage binary counter in COS/MOS technology in a single monolithic chip. An inverter is available for crystal oscillator application in which the function of the trimmer capacitor has been taken over by the variable frequency divider prised in the IC and used to set the correct output frequency. For this purpose seven adjustment terminals are provided on the M754; they are used to set the divider ratio to the required value with an accuracy of 10-6 . The adjustable frequency divider has been designed in such a way that the maximum output frequency is set when all adjustment terminals are either open-circuit or connected to pin 16.lf one or more adjustment terminals are grounded (taken to pin 14).the output frequency decreases. With an oscillator frequency of 4.194812 MHz the bridge configuration outputs supply two square wave signals whose frequency is 0.5 Hz; the pulse duty factor is 0.25 and their relative delay is of half period. The intermediate output provides a 64 Hz signal with pulse duty cycle of 50%. The by-four-divider oscillator frequency may be checked at a separate test output (pin 9) non-reactive with respect to the oscillator. The device is available in 16 lead dual in-line plastic or ceramic...