{{tag>collection_infosecdj vendor_ti type_unknown year_2003 foundry_unknown}}

This is the Iota chip, part of a GSM modem chipset.

For more information: https://osmocom.org/projects/baseband/wiki/TypicalCalypsoModemDesign

Thank you to blackbit for supplying the sample. 

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

{{:infosecdj:ti:twl3025bz:pack_top.jpg?300|}}

<code>
TWL3025BZ @
X 82CV5TT
</code>

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

<code>
2.2. 1
TWL3025

(Logo) (M)
TI 2003
</code>

The die was covered with PI.

{{https://siliconpr0n.org/map/ti/twl3025bz/single/ti_twl3025bz_infosecdj_mz_lmplan50x_halfres.thumb.jpg}}

[[https://siliconpr0n.org/map/ti/twl3025bz/infosecdj_mz_lmplan50x_halfres/|Top metal imaged with LMplan 50x LWD]]

  * [[https://siliconpr0n.org/map/ti/twl3025bz/single/ti_twl3025bz_infosecdj_mz_lmplan50x_halfres.jpg|Single]] (28378x28402, 161.591MiB)
{{https://siliconpr0n.org/map/ti/twl3025bz/single/ti_twl3025bz_infosecdj_mz_czpa40x.thumb.jpg}}

[[https://siliconpr0n.org/map/ti/twl3025bz/infosecdj_mz_czpa40x/|Top metal imaged with Carl Zeiss PlanApo 40x/1.0]]

  * [[https://siliconpr0n.org/map/ti/twl3025bz/single/ti_twl3025bz_infosecdj_mz_czpa40x.jpg|Single]] (45054x45341, 455.515MiB)