Thin small outline package
[Image:TSOP 32 (T1) BW.svg|thumb|An outline drawing of a Type I TSOP with 32 leads]
Thin small outline package is a type of surface mount IC package. They are very low-profile and have tight lead spacing.
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, 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.HTSOP
HTSOP 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
- Plastic small-outline package
- Shrink small-outline package
- Thin-shrink small outline package