Densitron LM2227A, 5 X 7 + cursor X 4.8mm character height dot matrix display. On-board CPU, RAM & ASCII character generator IC HD44780, C-MOS/TTL signal levels, 11 instructions, +5 VDC for logic, -5V for Contrast adj, 14 hole solder pads for I/O/power. Data
L: 4-5/8" W: 1-7/16" T: 3/8" WT: .1
