{{tag>collection_infosecdj vendor_ti type_logic_programmable_pal year_1985 foundry_unknown}}

This is a bipolar PAL circuit, with observable fuses.

====== Package ======

{{:infosecdj:ti:tibpal16r4:pack_top.jpg?300|}}

<code>
(Logo) 08SED78
TIBPAL16R4-25CN
</code>

====== Die ======

<code>
(M) TI 1985
</code>

<code>
F16A4-25F
</code>

Resistor test features also labelled:

<code>
20KH
20KC
2KL
</code>

{{https://siliconpr0n.org/map/ti/tibpal16r4/single/ti_tibpal16r4_infosecdj_mz_nikpa40x.thumb.jpg}}

[[https://siliconpr0n.org/map/ti/tibpal16r4/infosecdj_mz_nikpa40x/|Map of top metal imaged under Nikon PlanApo 40x/1.0 oil]]

  * [[https://siliconpr0n.org/map/ti/tibpal16r4/single/ti_tibpal16r4_infosecdj_mz_nikpa40x.jpg|Single]] (34803x34753, 308.619MiB)