Old Calculator Web Museum Advertising and Documentation Archive
Friden 1160 Logic Schematic, March, 1969
This is a logic-level schematic for the
The schematic includes all of the logic for the calculator
at the gate and flip-flop level.
The schematic only includes the circuitry
located on the plug-in circuit boards, and does not include the power supply.
The numbers preceded by an "M" inside the logic symbols indicates
the board number and IC package on the board in which the logic element
exists. The first digit after the "M" indicates the board number, and the
next two digits indicate the package number on the board. Packages are
numbered beginning at 1, starting at the lower left-hand corner of the
circuit board, moving horizontally across the board with the package number
sequentially incrementing, moving row at a time, left to right, through the
package at the upper-most right-most point on the board. In general,
the package number is identified by etched notations on the circuit board
near each package. For example, M304, is on board #3, and is the 4th
package on the board, which is the "D Counter" IC, SN1288.
Any re-distribution of this document, printed or electronic,
must include the watermark indicating its source as the Old Calculator Museum. Thank you.
Logic Schematic for Friden 1160 Electronic Calculator
March 1, 1969
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