ST52T440 Datasheet PDF – 8-bit Intelligent Controller Unit

Part Number : ST52T440

Function : 8-bit Intelligent Controller Unit (ICU)

Package : DIP, SO 28 Pin, DIP, SO 20 Pin Type

Manufacturers : STMicroelectronics

Pinouts :

ST52T440 datasheet


Description :

ST52x400 / ST52T440 are 8-bit Intelligent Control Units (ICU) of the ST Five Family, which are able to perform both boolean and fuzzy algorithms in an efficient manner, in order to reach the best performances that the two methodologies allow. ST52x400/440 is produced by STMicroelectronics using the reliable high performance CMOS process, including integrated-on-chip peripherals that allow maximization of system reliability, decreasing system costs and minimizing the number of external components.

The flexible I/O configuration of ST52x400/440 allows for an interface with a wide range of external devices, like D/A converters or power control devices. ST52x400/440 pins are configurable, allowing the user to set the input or output signals on each single pin.


1. Memories
(1) Up to 8 Kbytes EPROM/OTP
(2) 128/256 bytes of RAM
(3) Readout Protection

2. Core
(1) Register File Based Architecture
(2) 55 instructions
(3) Hardware multiplication and division
(4) Decision Processor for the implementation of
(5) Fuzzy Logic algorithms


Other data sheets within the file : ST52E440F3D6, ST52E440G3D6, ST52T400, ST52T400F0py

ST52T440 Datasheet PDF Download

ST52T440 pdf

BB901 Datasheet PDF – 28V, VHF Variable Capacitance Diode

Part Number : BB901

Function : VHF Variable Capacitance Diode

Package : SOT-23 Type

Manufacturers : Philips Electronics

Pinouts :

BB901 datasheet


Description :

The BB901 is a variable capacitance diode, fabricated in planar technology, and encapsulated in the SOT23 small plastic SMD package.


1. Excellent linearity
2. Small plastic SMD package
3. C28: 1 pF; ratio: 13.5

Absolute Maximum Rating

1. continuous reverse voltage : VR = 28 V
2. continuous forward current : IF = 20 mA


1. Electronic tuning in satellite tuners
2. Tunable coupling
3. VCO.

Other data sheets within the file : B901

BB901 Datasheet PDF Download

BB901 pdf