PDP12.ORG Logo

PDP-8 Minis
PDP-8 (0)
PDP-8/E (3)
PDP-8/M (2)
PDP-8/S (0)
PDP-11 Minis
PDP-12 Minis
PDP-12 Front View
Front View of HP-9100
Monroe 630
Tektronix 909
Test Equipment
Front View of HP-3440
Marconi 2955B
Front View of IBM 360 Front Panel
Help the Museum
Contact Us
Hosted by KRTEN.COM

DEC M-Series Modules (2xx) Schematics and Documentation

Reference > Drawings > Modules > M-Series (2xx)

[ 0xx | 1xx | 2xx | 3xx | 4xx | 5xx | 6xx | 7xx | 8xx | 9xx ]


M202 Triple J-K Flip Flop
M203 Eight single-input set-reset flip flops Schematic
M204 General Purpose Buffer and Counter
M205 Five D-flip-flops
M206 Six D-type flip-flops Schematic
M207 Six single-input J and K type flip-flops
M211 Binary Up/Down Counter Schematic
M212 6-Bit L R Shift Register Schematic
M214 Data Storage Register Data Sheet, Schematic
M216 Six flip-flops Schematic
M217 Clock Register Schematic
M218 MQ Register Data Sheet, Schematic
M219 Step Counter & Control Data Sheet, Schematic
M220 Major Registers (2) Schematic
M221 Main Register Schematic
M222 LINC Tape Register Schematic
M223 MA MB Register Data Sheet, Schematic
M226 Register Module Data Sheet, Schematic
M227 Shifter AC Data Sheet, Schematic
M233 Disk Shift Register Schematic
M238 2 Synchronous 4-Bit Up/Down Converters Data Sheet, Schematic
M240 6 R/S Flip Flops Data Sheet, Schematic
M242 Triple J K Flip Flop Data Sheet, Schematic
M248 4-Bit RT Shift Parallel LD Register (Dual) Data Sheet, Schematic
M241 6 Type D Flip-Flops Schematic
M243 8 Type D Flip-Flops Schematic
M246 5 D Flip-Flops Schematic
M247 Console Switch Flip-Flops Schematic
M234 KE11-A Registers
M239 Three 4-bit counter/registers
M250 4 Bit 16 Word Memory Schematic
M253 12 Bit 16 Word Memory Schematic
M260 16 Word x 12 Bit Ass. Mem. Cell Schematic

These documents have been obtained from my own personal collection, as well as extensive searches on the net. If you have any documents that you'd like added to the archive, please contact me.

This collection would not have been possible without the work done by: David Gesswein (pdp8.net), and Al Kossow (bitsavers.org),

If there's anyone I've missed, spelled incorrectly, gave the wrong URL for, etc, please let me know and I'll update.

Latest Updates
Master Reference
PDP-12 is alive!
New machine: PDP-8/L

Contact us This page was updated on Fri Feb 19 00:10:33 EST 2010 © 2000-2007 by Robert Krten.
All rights reserved.
Areas of expertise: 8044, 8051, ARC/CBS, ARCNet, ARM, ASM-86, Automated Disassembly, Avanza, Avionics Software, awk, bash, Bell 103, Bell 202, BITBus, Bootloaders, C, Call Processing, Caller ID, CF-UTTH, Clear Thinking and Common Sense, Client/Server, CMR-91, Code Analysis, Cold Standby, Computer Based Training, Course Developemnt, Course Presentation, CRS-1, curl, cvs, Czech Language, Databases, Data Acquisition, Data Recovery, Decompilation, Debugging, Distributed Processing, DMS-100, Documentation, Drivers, DSP, DTMF, E.164, Embedded Systems, Emulation, Equinox, expect, Fault Tolerance, FFT, Filesystems, Firewalls, Fractals, FreeBSD, FSK, Gammacell 40/1000/3000, Graphics, GSR-12000, Hardware, High Availability, Home Automation, Hot Standby, HTML, HTTP, IDA Pro, IIDS, Image Processing, In-Service Upgrade, Industrial Automation, Infrastructure, Internationalization, iRMX-86/286, ISBT-128, Kernels, ksh, Ladder Logic, Lexical Analyzers, Linux, Loggers, m4, make, Medical Devices, Memory Constrained Environments, Message Passing, Microcontrollers, MIDI, MIL-STD-2167A, NNTP, OpenBSD, Optimization, OrCAD, Oscilloscopes, PABX, Parallel Processing, Parsing, PDP-8, Photon, Porting, POSIX, POVRay, Powerpoint, PowerPC, Preprocessor, Process Control, Program Flow Analysis, Project Management, Prototyping, Public Speaking, QNET, QNX 2, QNX 4, QNX 6 (Neutrino), Radarsat, rcs, Realtime Techniques, Recursive Descent Parsers, Regression Testing, Regular Expressions, Requirements Analysis, Resource Managers, Restoration, Reverse Engineering, Scripting, Security Systems, sed, Serial Protocols, SGML, Simulation, SMDR, SMTP, Soldering, svn, SX-20, Synthesizers, System Architecture, T.4, T.30, TCL, TCP/IP, Technical Presentations, Technical Writing, Telecoms, Testcases, Testjigs, Text Processing, Threads, Tools, Traceability Matrices, TTL, UNIX, Utilities, UUCP, Validation Protocols, Vaulting, VAX/VMS, vi, Virtual Filesystems, Warm Standby, wget, Wirewrap, X-10, X.25, x86