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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
The PCB
of the Texas Instruments TI-88 "PVT 2 (Production Validation Test 1)
Build",
manufactured
in August 1982 is centered around two 4-bit microcontroller, two RAM and one ROM chip, each. |
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Close-up
view of the Main Integrated Circuits of the TI-88 "PVT 2 Build" with Serial Number
0001101.
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The
rechargeable battery pack of the TI-88 with just one AA-sized NiCd battery in a small plastic housing.
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The Constant Memory or
CRAM-Module as user programmable memory with
either 1,184 program steps or 148 user memories.
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The 11 contacts of the Constant Memory or CRAM-Module with Power Supply, 4 Data I/O-lines, 2 Chip Select signals, Clock and Serial I/O. ![]() |
The
CROM-Module as pre-programmed software like the
earlier TI-58C/TI-59 Solid State Software™ modules with up
to 15,000
program steps.
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The 11 contacts of the
Solid State Software or CROM-Module with Power Supply, 4 Data I/O-lines, 2 Chip Select signals, Clock and Serial I/O. ![]() |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, October 11, 2019. No reprints without written permission.