MH7807 - National Semiconductor

MH7807 oscillator/clock drivers

The MH7807/MH8807 is a complete self-contained two-phase oscillators and clock driver subsystems for MOS micro-computer, calculator and shift register systems_ features • No ext$rnal timing components • Two non-overlapping outputs • Both frequency and pulse width are voltage controlled • Frequency adjustable from 400 kHz to 2 MHz • Pulse width adjustable fr.

Features

• No ext$rnal timing components
• Two non-overlapping outputs
• Both frequency and pulse width are voltage controlled
• Frequency adjustable from 400 kHz to 2 MHz
• Pulse width adjustable from 300 ns to 2f.ls
• Low power for battery operation
• TTL outputs for verification and synchroniza- tion
• E!oth direct and damped MOS outputs logic diagram FREQUENCY CONTROL 0--------. . .PULSE WIDTH CONTROL DAMPED MOS OUTPUTS 10n --<> v' --0 v- --<> INHIBIT --0 TEST r--'--Ovcc ., TTL OUTPUTS L - -....--oCNO connection diagram DIRECT MOS OUTPUTS INHIBIT v' TEST FREQ CONTROL .9-8 .