This is an inventory of flipchips in my collection:

• M050 – 50mA indicator and relay driver
• M100 x 2 – Bus data interface
• M107 x 6 – Device selector PDP-8, Non Omnibus
• M113 x 15 – 2-input NAND gates (x10)
• M137 x 4 – high speed 4-input power NAND Gates
• M139 x 4 – 8-input NAND gate (x3) (pinout different from M119)
• M141 x4 – AND/NOR gates
• M155 x4 – 4-line to 16-line Decoder
• M159 – Arithmetric/logic unit
• M160 x5 – AND/NOR Gate module
• M161 x4 – Binary to Octal/Decimal Decoder
• M169 x4 – Gating Module
• M178 x8 – 8×6 data mixer
• M190 x4 – ?
• M191 – ALU Look-Ahead Logic
• M202 x4 – J-K flip flop module
• M203 – eight Set-Reset flip flop module
• M204 x3 – General purpose buffer and counter module
• M205 x4 – five -"D" FLIP FLOPS
• M206 x4 – Six General purpose flip-flops
• M207 x2 – Six General purpose flip-flops
• M211 x2 – Binary up/down counter (6 bits wide)
• M212 x4 – 6-Bit L-R Shift Register
• M214 x2 – ?
• M216 x5 – Six flop-flops
• M217 x4 – Clock Register
• M238 x4 – Dual 4-bit binary synchronous up/down counter
• M245 x4 – Dual 4-bit shift register
• M304 x4 – One-shot delay (PC15)
• M307 x4 – Integrating one-shot module
• M310 x4 – Delay line
• M360 x2 – Variable delay
• M401 x4 – Variable clock
• M405 x3 – Crystal clock
• M452 x4 – Variable (TTY) clock (for PC15)
• M501 – Schmitt trigger
• M503 x4 – Schmitt Trigger
• M506 x4 – Negative input converter
• M508 x4 – Bus converter
• M510 – Positive bus receiver (for PC15)
• M516 x8 – Positive bus receiver
• M514 – Bus transceiver
• M602 x2 – Pulse Generator (amplifier)
• M606 x5 – Pulse Generator (for PC15)
• M611 x4 – high speed Power inverter
• M617 x5 – 4-input NOR buffers (x6)
• M622 – Positive Pulse Receiver (for PC15)
• M623 x 2 – Bus driver
• M627 x4 – Power amplifier module
• M640 – ?
• M650 x4 – Negative output converter
• M660 x5 – Positive level cable driver
• M661 x9 – Positive level driver
• M712 x2 – ?
• M719 x2 – KW-12 Clock Input Synchronizer
• M720 x4 – Memory detection
• M870 – Simple Clock
• M906 x3 – Cable terminator
• M921 – Device code jumper select
• M939×2 – ?