DATAMATH CALCULATOR MUSEUM |
Additional Pictures
This SR-56 (Pre-Launch) was manufactured
in January 1976 by
|
The battery compartment of the SR-56. |
The Main printed circuit
board (PCB) of the SR-56 calculator is centered around the TMC0501, TMC0537/0538 and TMC0599 Chips supported by only few discrete components. |
The rear
side of the SR-56 PCB with the Display Module and
Keyboard assembly. |
Close-up
view of the TMC0501 Arithmetic Chip.
|
Close-up
view of the TMC0537 Scanning and Read-Only Memory Chip.
|
Close-up
view of the TMC0538 Scanning and Read-Only Memory Chip.
|
Close-up view of the TMC0599 Multi-Register Chip.
|
Close-up
view of one of the two SN97311 Display Driver Chips.
|
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 13, 2024. No reprints without written permission.