|Abstract: MMr 1 so DIGITAL MULTIMETER LOGIC GENERAL DESCRIPTION MMP 130 is a digital multimeter logic integrated circuit fabricated in PMOS enhancement-depletion aluminium gate technology. The circuit consists of 2 internal oscilators (one for multiplexing, one for counting), a 4 decades BCD counter, an output multiplexer which can drive a LED or LCD 3 3/4 digit display and an autoranging and dual-slope A/D conversion control logic. MMP 190 is supplied in 28-lead dual-in-line plastic packages. FEATUR ...
|25CC digital multimeter circuit COUNTER LED bcd ba 21 MMP 190 4 digit COUNTER LED bcd block diagram of multimeter decade counter lcd digital multimeter diagram 3 bit up down counter datasheet abstract