This page describes the IBM SMS card "NC", and is part of the SMS card database.

Function of the card:
CTDL-Single Shot “U” Input
CTDL Single Shot Trigger (U Input)
Ctdl single shot u input
Ctdl single shot "u" input

Complemented Transistor Diode Logic (CTDL) is IBM's term for a form of diode-transistor logic.

Trigger is IBM's term for a flip flop or latch.

Part number:371592

Field replacement part number:371592

Customer Eng reference number:729885

Used in:IBM 1401,IBM 1414 I/O Synchronizer,IBM 7070,IBM 1410

Symbol:SS

SS: Single Shot. Provides a monostable output which can be pulsed into its quasi-stable state for a predetermined duration. with each input triggering pulse or triggering voltage change. Once triggered, the output pulse duration becomes independent of input time duration or amplitude.

Family: CTDL high speed

References:
IBM Standard Modular System, Component Circuits, p178.
2_2 SMS Cards, p44,45,46.
1410_SMS_VOL_1.pdf/1410_SMS_VOL_2.pdf, p2093.
1414 SMS Cards, p74.
This page created by Ken Shirriff, 2015.

The information on these pages comes from a variety of sources, especially old IBM documents on bitsavers.org, as well as information from the IBM 1401 restoration team, especially Tim Coslet's SMS data and Jim Hunt's data. Images courtesy of Randall Neff. Much of this information was obtained through OCR, so don't expect complete accuracy. These pages are not associated with IBM in any way.

Creation time: Tue Mar 03 23:40:34 2015.