The 8200/01/02/03 are buffer registers/arrays of 10 clocked "D" flipflops. I have a Signetics integrated circuits 1978 data handbook, which has them described. I will scan tomorrow (but there might be problems with the scanner). For now, here is some data from the handbook. The 8200/01/02/03 MSI Buffer Registers are arrays of ten clocked "D" flipflops especially suited for parallel-in parallel-out register applications. They are also suitable for general purpose applications as parallel-in serial-out, serial-in parallel-out registers. The flipflops are arranged as dual 5 arrays (8200 and 8201) and single 10 arrays with reset (8202 and 8203). The true output of each bit is made available to the user. The 8200 and 8201 feature true "D" inputs. The logic state presented at these "D" inputs will appear at the Q outputs after a negative transistion of the clock. The 8203 and 8204 feature complementing "D" inputs ("D\"). The logic state presented at these "D\" inputs will invert and appear at the Q outputs after a negative going transisition of the clock. This complementing input feature ("D\") permits the use of standard AND-OR-INVERT gates to achieve the AND-OR function without additional gate delays. - Henk. ________________________________ Van: cctalk-bounces at classiccmp.org namens Vincent Slyngstad Verzonden: di 08-05-2007 19:45 Aan: General Discussion: On-Topic and Off-Topic Posts Onderwerp: Wanted: N8202N datasheet Hi, I am looking for a datasheet for the N8202N or equivalent. It would have been described in "Digital 8000 series TTL/MSl". It was apparently manufactured by Signetics and equivalents seem to have been available from Motorola and others. I have the pinout for the device. What I'm looking for is whether the clock is edge or level sensitive, which edge or level, and maybe something about setup and hold times, etc. (This is to help design replacements for some hard-to-find old DEC gear.) Thanks! Vince This message and attachment(s) are intended solely for use by the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a 'reply' message. Thank you for your co-operation.

http://www.datasheets.org.uk/specsheet.php?part=N8202N Datasheetarchive.com is sometimes your friend. In this case, only a specsheet, hope that helps