LS7183

LS7183 & LS7184 Encoder to Counter Interface Chips Description: The LS7183 and LS7184 allow incremental encoders to drive standard up/down counters. Connect the encoder quadrature outputs to the A & B inputs. The LS7183 outputs can connect directly to the up and down clock inputs of counters such as 74193 or 40193. The LS7184 outputs can connect directly to the Clock and Up/Dn inputs of counters such as 4516 or 74169. The LS7183 and LS7184 are improved designs over the LS7083 and LS7084 products and should be considered first for all new product designs. The primary differences between the old and new LS chips are the addition of a X2 resolution multiplication, power supply operating range and improved output pulse timing characteristics. Please note: Rbias values for output pulse width timing are not the same as the LS7083 and LS7084 values. Features: ¾ X4, X2 or X1 resolution multiplication ¾ TTL and CMOS compatible ¾ Low power (micro-amps) ¾ 8-pin DIP or SOIC package ¾ No external clocks required ¾ Drive standard Up/Dn counters ¾ Monolithic CMOS ¾ Operates from 3V to 5V power supply Absolute Maximum Ratings: Parameter Operating Temperature Storage Temperature Voltage @ Any Input Supply Voltage (VCC) Min. -20 -55 -.3 Max. 85 150 VCC+.3 7 Units °C °C Volts Volts Optical Encoder Rbias 1 +VDC 2 Gnd 3 A in 4 LS7183 8 UpClk out 7 DnClk out 6 Mode input 5 B in 5 74193 4 type Cascadable +VDC Up/Dn Counter Top View Float Optical Encoder Rbias 1 +VDC 2 Gnd 3 A in 4 LS7184...