Pinout of TIL311 (Hexadecimal LED display with latch, decoder & driver) Here's another pinout of a very nice but very expensive hexadecimal LED display. It's very useful for hardware monitoring of address and data busses and it has a character set that is much more readable than the usual 7-segment-font (CAPITAL hex digits). I don't know if you like to keep the pin description below the drawing. (By the way: This chip REALLY has two notches on top and one on bottom!) Bye, Martin Schmidt TIL311 Hexadecimal display with latch, decoder & driver +----v---v----+ 1 -|Vcc1 Vcc2|- 14 Dot matrix: oooo 2 -|D1 _ D2|- 13 o o 3 -|D0 :_: D3|- 12 o o 4 -|DPL .:_:. | oooo 5 -|LE DPR|- 10 o o | # | o o 7 -|GND BI|- 8 o oooo o +------^------+ / \ dpl dpr Vcc1 is LED supply, Vcc2 is logic supply (both +5V). DPL and DPR are direct connections to the catodes of the decimal points (no drivers, no current limiter in between). BI (Blanking Input) blanks the display if HIGH. LE (Latch Enable) latches the digital data on D0(LSB)..D3(MSB) if HIGH. Pins 6, 9, 11 are missing. Date: 19991112 From: Mark Graybill To: Jaap van Ganswijk Subject: Chipdir addition ... addition = TIL311 Hexadecimal Display with Logic +---------+ LED Supply V |1 +-+ 14| Vcc B IN |2 13| C IN A IN |3 12| D IN L DP |4 | Latch Strobe |5 10| R DP | | GND |7 8| Blanking +---------+ Decimal points are direct connections to LED cathodes, external current limiter required. LED Supply can use either Vcc or a separate supply to relieve loading on regulated Vcc if desired. name = Mark Graybill