Just received a selectable 0-99sec or 0-99min 12V relay board ... very basic and cheap so decided to purchase one instead of designing one myself ... very old school as this Chinese sourced product ground off the number on the only 14 pin soic on the board ... expecting it should be a MCU as it drives a 2 digit 7 segment display and uses a voltage divider (AIN) style IP to set the timer ... the curious part of their design is they used a 79L05 from the 12V rail to power this chip ... the second curious thing is this chip has VSS on pin 5 and VDD on pin 10 ... I have seen variations of VSS/VDD as 7-14, 1-14 but don't recall a 5-10 scenario ... as such, was expecting it to be simple to find the actual part they used. Ideas?