Description
The M494 is a monolithic LSI integrated circuit fabricated in SGS-THOMSON’s EPM2 process ; an N-channel, Planox, double poly MOS process caJune 1991 1/22 M494 D4 D3 D2 D1 D0 OPTION SELECT DISPLAY DRIVE h+ i g f e VSS d c b a AV0 AV1 VPP MEMORY TIMING 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 DATA HANDSHAKE V DD STANDBY AFC DEFEAT FB/SYNC COINCIDENCE REMOTE CONTROL VOLUME SATURATION TEST 1 BRIGHTNESS MS 0 MS 1 CONTRAST TUNING OSC. IN VHF 1 VHF 3 494-01.EPS CATV UHF Symbol VDD VPP VI VO(off) IOL Supply Voltage Memory Supply Voltage Input Voltage Off State Input Voltage Output Low Current LED Driver Outputs : pin h + i All other Outputs Total Package Power Dissipation Storage Temperature Operating Temperature Capacitance on Option Select Pin Resistance on Option Select Pin Capacitance on data outputs & keyboard inputs when lines are connected by a keyboard switch closure Series Resistance of Single Keyboard Switch Capacitance on Data Handshake Pin pin a-g Parameter Value – 0.3 to 7 – 0.3 to 26 – 0.3 to 15 15 20 35 5 5 1 – 25 to + 125 0 to + 70 100 1 150 10 50 Unit V V V V mA mA mA µs W °C °C pF kΩ pF kΩ pF 494-01.TBL tPD Ptot Tstg Top C os R os C dk Rk Crts Max.
