Datasheet Component Blog

February 17, 2012

Atmel ATmega168 Microcontroller AVR

Filed under: Uncategorized — admin @ 12:32 am

The ATmega48P 88P 168P 328Pis a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega48P/88P/168P/328P achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

 

Atmel AVR ATmega168 Microcontroller

ATmega168 Microcontroller
Features
- High Performance, Low Power AVR 8-Bit Microcontroller
- Advanced RISC Architecture
– 131 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 20 MIPS Throughput at 20 MHz
– On-chip 2-cycle Multiplier
– 4/8/16/32K Bytes of In-System Self-Programmable Flash progam memory (ATmega48P/88P/168P/328P)
– 256/512/512/1K Bytes EEPROM (ATmega48P/88P/168P/328P)
– 512/1K/1K/2K Bytes Internal SRAM (ATmega48P/88P/168P/328P)
– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
– Data retention: 20 years at 85°C/100 years at 25°C
– Optional Boot Code Section with Independent Lock Bits
- In-System Programming by On-chip Boot Program
- True Read-While-Write Operation
– Programming Lock for Software Security
– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
– One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
– Real Time Counter with Separate Oscillator
– Six PWM Channels
– 8-channel 10-bit ADC in TQFP and QFN/MLF package
– 6-channel 10-bit ADC in PDIP Package Temperature Measurement
– Programmable Serial USART
– Master/Slave SPI Serial Interface
– Byte-oriented 2-wire Serial Interface (Philips I2C compatible)
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
– Interrupt and Wake-up on Pin Change

January 23, 2012

Atmel ATMega 16 Microcontroller

Filed under: Uncategorized — admin @ 1:45 pm

The ATMega 16 is  a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega16 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

Atmega 16 Pinout

Atmega 16 Pinout Diagram

Features· High-performance, Low-power AVR® 8-bit Microcontroller· Advanced RISC Architecture ­ 131 Powerful Instructions ­ Most Single-clock Cycle Execution­ 32 x 8 General Purpose Working Registers­ Fully Static Operation­ Up to 16 MIPS Throughput at 16 MHz­ On-chip 2-cycle Multiplier · High Endurance Non-volatile Memory segments ­ 16K Bytes of In-System Self-programmable Flash program memory­ 512 Bytes EEPROM 8-bit ­ 1K Byte Internal SRAM­ Write/Erase Cycles: 10,000 Flash/100,000 EEPROM Microcontroller ­ Data retention: 20 years at 85°C/100 years at 25°C(1)­ Optional Boot Code Section with Independent Lock Bits with 16K Bytes In-System Programming by On-chip Boot Program True Read-While-Write Operation ­ Programming Lock for Software Security In-System · JTAG (IEEE std. 1149.1 Compliant) Interface ­ Boundary-scan Capabilities According to the JTAG Standard Programmable ­ Extensive On-chip Debug Support­ Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface Flash · Peripheral Features ­ Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes­ One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode ATmega16 ­ Real Time Counter with Separate Oscillator­ Four PWM Channels ATmega16L ­ 8-channel, 10-bit ADC 8 Single-ended Channels7 Differential Channels in TQFP Package Only2 Differential Channels with Programmable Gain at 1x, 10x, or 200x ­ Byte-oriented Two-wire Serial Interface­ Programmable Serial USART­ Master/Slave SPI Serial Interface­ Programmable Watchdog Timer with Separate On-chip Oscillator­ On-chip Analog Comparator

April 5, 2011

Microchip PIC16F873A PIC16F874A PIC16F876A PIC16F876A Microcontroller

Filed under: Uncategorized — admin @ 8:14 pm

High-Performance RISC CPU:

PIC16F873A PIC16F874A PIC16F876A PIC16F876A  Enhanced Flash
• Only 35 single-word instructions to learn• All single-cycle instructions except for program
branches, which are two-cycle

• Operating speed: DC – 20 MHz clock input
DC – 200 ns instruction cycle
• Up to 8K x 14 words of Flash Program Memory,
Up to 368 x 8 bytes of Data Memory (RAM),
Up to 256 x 8 bytes of EEPROM Data Memory

• Pinout compatible to other 28-pin or 40/44-pin
PIC16CXXX and PIC16FXXX microcontrollers

 
Peripheral Features:

• Timer0: 8-bit timer/counter with 8-bit prescaler
• Timer1: 16-bit timer/counter with prescaler,

can be incremented during Sleep via external

crystal/clock
• Timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
• Two Capture, Compare, PWM modules
- Capture is 16-bit, max. resolution is 12.5 ns
- Compare is 16-bit, max. resolution is 200 ns
- PWM max. resolution is 10-bit
• Synchronous Serial Port (SSP) with SPI™
(Master mode) and I
• Universal Synchronous Asynchronous Receiver
Transmitter (USART/SCI) with 9-bit address
detection

• Parallel Slave Port (PSP) – 8 bits wide with
external RD, WR and CS controls (40/44-pin only)
• Brown-out detection circuitry for
Brown-out Reset (BOR)
I2C™ (Master/Slave)

Analog Features:
• 10-bit, up to 8-channel Analog-to-Digital
Converter (A/D)
• Brown-out Reset (BOR)
• Analog Comparator module with:
- Two analog comparators
- Programmable on-chip voltage reference

Peripheral Features:
• Timer0: 8-bit timer/counter with 8-bit prescaler
• Timer1: 16-bit timer/counter with prescaler,
can be incremented during Sleep via external

crystal/clock
• Timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
• Two Capture, Compare, PWM modules
- Capture is 16-bit, max. resolution is 12.5 ns
- Compare is 16-bit, max. resolution is 200 ns
- PWM max. resolution is 10-bit
• Synchronous Serial Port (SSP) with SPI™
(Master mode) and I
• Universal Synchronous Asynchronous Receiver
Transmitter (USART/SCI) with 9-bit address
detection
• Parallel Slave Port (PSP) – 8 bits wide with
external RD, WR and CS controls (40/44-pin only)
• Brown-out detection circuitry for
Brown-out Reset (BOR)
2C™ (Master/Slave)

Analog Features:
• 10-bit, up to 8-channel Analog-to-Digital
Converter (A/D)
• Brown-out Reset (BOR)
• Analog Comparator module with:
- Two analog comparators
- Programmable on-chip voltage reference

April 2, 2011

LM5118 Wide Voltage Range Buck-Boost Controller

Filed under: Uncategorized — admin @ 8:56 am
The LM5118 wide voltage range Buck-Boost switching regulator controller features all of the functions necessary to implement a high performance, cost efficient Buck-Boostregulator using a minimum of external components. TheBuck-Boost topology maintains output voltage regulationwhen the input voltage is either less than or greater than theoutput voltage making it especially suitable for automotiveapplications. The LM5118 operates as a buck regulator whilethe input voltage is sufficiently greater than the regulated output voltage and gradually transitions to the buck-boost modeas the input voltage approaches the output. This dual modeapproach maintains regulation over a wide range of inputvoltages with optimal conversion efficiency in the buck modeand a glitch-free output during mode transitions.

July 27, 2010

1N4148 Small Signal Diode

Filed under: Uncategorized — admin @ 1:01 am

An extremely useful diode is the 1N4148. It can be used for many fast switching and protection applications. Some of it’s specifications:

Maximum Repetitive Reverse Voltage: 100V
Average Rectified Forward Current: 200 mA
DC Forward Current: 300mA
Recurrent Peak Forward Current:400 mA
Non-repetitive Peak Forward Surge Current
Pulse Width = 1.0 second
Pulse Width = 1.0 microsecond
Storage Temperature Range: -65 to + 175
Operating Junction Temperature -65 to + 175 °C
Maximum Repetitive Reverse Voltage: 100V
Average Rectified Forward Current: 200mA
Forward Current: 300mA
Recurrent Peak Forward Current: 400mA

April 8, 2010

MAX7456 On Screen Display Video Overlay

Filed under: Uncategorized — admin @ 10:13 am
The MAX7456 single-channel monochrome on-screendisplay (OSD) generator lowers system cost by eliminatingthe need for an external video driver, sync separator,video switch, and EEPROM. The MAX7456 servesall national and international markets with 256 user-programmablecharacters in NTSC and PAL standards.The MAX7456 easily displays information such as companylogo, custom graphics, time, and date with arbitrarycharacters and sizes. The MAX7456 is preloadedwith 256 characters and pictographs and can be reprogrammedin-circuit using the SPITM port.
Features:
♦ 256 User-Defined Characters or Pictographs in Integrated EEPROM
♦ 12 x 18 Pixel Character Size
♦ Blinking, Inverse, and Background Control Character Attributes
♦ Selectable Brightness by Row
♦ Displays Up to 16 Rows x 30 Characters
♦ Sag Compensation On Video-Driver Output
♦ LOS, VSYNC, HSYNC, and Clock Outputs
♦ Internal Sync Generator
♦ NTSC and PAL Compatible
♦ SPI-Compatible Serial Interface
♦ Delivered with Preprogrammed Character Set
Example circuit:

Maxim max7456 example circuit

February 10, 2010

LM393 Low Power Low Offset Voltage Dual Comparator

Filed under: Uncategorized — Tags: , , , , — Brad @ 1:22 am

The LM393 consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mV max for two comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power
supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage.

Application areas include limit comparators, simple analog to digital converters; pulse, squarewave and time delay generators; wide range VCO; MOS clock timers; multivibrators
and high voltage digital logic gates. The LM393 series was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM393 series will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators.

Advantages:
High precision comparators
Reduced VOS drift over temperature
Eliminates need for dual supplies
Allows sensing near ground
Compatible with all forms of logic
Power drain suitable for battery operation

February 8, 2010

ULN2803 Eight Darlington Array ULN2803A

Filed under: Uncategorized — Tags: , , , — Brad @ 12:43 am

The ULN2801A-ULN2805A each contain eight darlington transistors with common emitters and integral suppression diodes for inductive loads. Each darlington features a peak load current rating of 600mA (500mA continuous) and can withstand at least 50V in the off state. Outputs may be paralleled for higher current capability. Five versions are available to simplify interfacing to standard logic families : the ULN2801A is designed for general purpose applications with a current limit resistor ; the ULN2802A has a 10.5kW input resistor and zener for 14-25V PMOS ; the ULN2803A has a 2.7kW input resistor for 5V TTL and CMOS ; the ULN2804A has a 10.5kW input resistor for 6-15V CMOS and the ULN2805A is designed to sink a minimum of 350mA for standard and Schottky TTL where higher output current is required. All types are supplied in a 18-lead plastic DIP with a copper lead from and feature the convenient inputopposite-output pinout to simplify board layout.

February 4, 2010

XBee and XBee PRO DigiMesh 2.4 OEM RF Modules

Filed under: Uncategorized — Tags: , , , , — Brad @ 10:27 am

The XBee/XBee-PRO DigiMesh 2.4 OEM RF Modules were engineered to support the unique needs of low-cost, low-power wireless sensor networks. The modules require minimal power and provide reliable delivery of data between remote devices.

The XBee modules us the ISM (Industrial, Scientific & Medical) 2.4 GHz frequency band

Key Features:

Long-range Data IntegrityXBee
Indoor/Urban: up to 100′ (30 m)
Outdoor line-of-sight: up to 300′ (100m)
Transmit Power: 1 mW (0dBm)
Receiver Sensitivity: -92 dBmXBee-PRO
Indoor/Urban: up to 300′ (90 m)
Outdoor line-of-sight: up to 1 mile (1600m)
Transmit Power: 63mW (18dBm) EIRP
Receiver Sensitivity: -100 dBm (1% packet error rate)
RF Data Rate: 250,000 bpsAdvanced Networking & Security
Retries and Acknowledgements
Self-routing, self-healing mesh networking
DSSS (Direct Sequence Spread Spectrum)

Serial communications:

The XBee/XBee-PRO 2.4 DigiMesh OEM RF Modules interface to a host device through a logic-level asynchronous serial port. Through its serial port, the module can communicate with any logic and voltage compatible UART; or through a level translator to any serial device (For example: Through a Digi proprietary RS-232 or USB interface board).

February 1, 2010

TIP31C NPN Power Transistor TIP31

Filed under: Uncategorized — Tags: , , — Brad @ 9:17 pm
The TIP31C is a base island technology NPN power transistor in TO-220 plastic package with better performances than the industry standard TIP31 that make this device suitable for audio, power linear and switching applications. The PNP type is TIP32C.


Absolute maximim ratings:

Collector-base voltage (IE = 0) 100 V
Collector-emitter voltage (IB = 0) 100 V
Emitter-base voltage (IC = 0) 5 V
Collector current 3 A
Collector peak current 5 A
Base current 1 A
Total dissipation at Tcase = 25°C
Total dissipation at Tamb = 25°C
Storage temperature -65 to 150 °C
Max. operating junction temperature 150 °C

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