science

Thin small outline package

Thin small outline package is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Thin small outline package rather than just read about it. In short: Thin small outline package (TSOP) is a type of surface mount IC package. They are very low-profile (about 1 mm) and have tight lead spacing (as low as 0.5 mm).

Key takeaways

Thin small outline package belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Thin small outline package to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Thin small outline package from memory before moving on to harder problems.

Reference excerpt

Thin small outline package (TSOP) is a type of surface mount IC package. They are very low-profile (about 1 mm) and have tight lead spacing (as low as 0.5 mm). They are frequently used for RAM or Flash memory ICs due to their high pin count and small volume. In some applications, they are being supplanted by ball grid array packages which can achieve even higher densities. The prime application for this technology is memory. SRAM, flash memory, FSRAM and EEPROM manufacturers find this package well suited to their end-use products. It answers the needs required by telecom, cellular, memory modules, PC cards (PCMCIA cards), wireless, netbooks and countless other product applications. TSOP is the smallest leaded form factor for flash memory.

History The TSOP package was developed to fit the reduced package height available in a PCMCIA PC Card.

Physical properties

TSOPs are rectangular in shape and come in two varieties: Type I and Type II. Type I ICs have the pins on the shorter side and Type II have the pins on the longer side. The table below shows basic measurements for common TSOP packages.

Type I

Type II

HTSOP HTSOP (Heatsink TSOP) is a variant of TSOP with an exposed pad on the bottom side. The pad is soldered to the PCB to transfer heat from the package to the PCB.

Similar packages There are a variety of small form-factor IC carrier available other than TSOPs

Small-outline integrated circuit (SOIC) Plastic small-outline package (PSOP) Shrink small-outline package (SSOP) Thin-shrink small outline package (TSSOP)

See also Integrated circuit Chip carrier Chip packaging and package types list

References

External links

TSOP Package Information from Amkor Technology

Illustrations

Worked examples

Example 1 — a first encounter with Thin small outline package

Start with the simplest possible case. Write down what Thin small outline package claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Thin small outline package before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Thin small outline package ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Thin small outline package

In research: Thin small outline package appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Thin small outline package in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Thin small outline package is common in secondary-school and first-year university syllabi. It links to neighbouring topics Chip carriers, so understanding it makes those chapters shorter.
In everyday life: Look for Thin small outline package outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Thin small outline package in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Thin small outline package means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Thin small outline package out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Thin small outline package in simple terms?

Thin small outline package (TSOP) is a type of surface mount IC package. They are very low-profile (about 1 mm) and have tight lead spacing (as low as 0.5 mm).

Why does Thin small outline package matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Thin small outline package?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Thin small outline package.