643 Chips
updated
Jul 11, 2017

CPU Grave Yard
a processor collection


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AMD (93)
AMI (2)
ATT (1)
Atmel (23)
Auctor (1)
Axis (1)
CMD (1)
Cypress (4)
Cyrix (3)
DEC (2)
Fujitsu (7)
GTE (3)
HP (1)
Harris (1)
Hitachi (11)
IBM (11)
IDT (2)
Inmos (2)
Intel (187)
Lucent (1)
MHS (2)
MOS (9)
MOSTEK (1)
Microchip (29)
Motorola (66)
NCR (1)
NEC (16)
OKI (4)
Philips (6)
RCA (2)
RDA (1)
Renesas (3)
Ricoh (2)
SGS (2)
SONiX (1)
ST (1)
Samsung (3)
Siemens (4)
Sony (8)
Sun (5)
TI (15)
Toshiba (3)
VLSI (1)
WDC (1)
Weitek (3)
Xilinx (3)
Zilog (16)
Others (35)
Glossary
A

A.b - ACCESS.bus
Definition: a peripheral-interconnect computer bus
Wikipedia article
ADC - Analog to Digital Converter
Definition: a unit that takes analog signals and converts them to digital. Commonly incorporated in MCUs. Sometimes abbreviated as A/D
Wikipedia article
ATM - Asynchronous Transfer Mode
Definition: a networking protocol
Wikipedia article
ATAPI - Advanced Technology Attachment Packet Interface
Definition: connection for other storage devices such as CD-ROM drives and tape drives to the Parallel ATA interface
Wikipedia article
ASIC - Application Specific Integrated Circuit
Definition: a custom IC
Wikipedia article


B

Bipolar
See: Bipolar junction transistor
BJT - Bipolar junction transistor
Definition: 3-terminal transistor, NPN or PNP. Current controlled-current source
Wikipedia article
BiCMOS
Definition: combining BJTs and CMOS technology on the same device (die) Pentium, Pentium Pro, and SuperSPARC used BiCMOS
Wikipedia article
BOR - Brown-out Reset
Definition: Reset when the Vcc drops below a certain level
Wikipedia article
BSSP - Basic Synchronous Serial Port
Definition: a serial interface useful for communicating with other peripheral or microcontroller devices uing SPI or I2C
Wikipedia article



C2SIa - Class II Serial Interface A
Definition: a communication module used for transmitting and receiving data over a multi-master network, follows the J1850 Class B protocal
C2SIb - Class II Serial Interface B
Definition: a communication module used for transmitting and receiving data over a multi-master network, follows the J1850 Class B protocal
Carry look-ahead adder
Definition: faster binary adder that looks ahead instead of rippling through the bits
Wikipedia article
CAN - Controller-area network
Definition: A communications protocol for vehicles
Wikipedia article
CCP - Capture/Compare/PWM
capture register, as a 16-bit compare register or as a 10-bit PWM Definition: a module that can operate as capture, compare or PWM register
Microchip White sheet
CGC - Clock Generator Module
Definition: generates the base clock signal
COP - Computer Operating Properly
See: Watchdog timer
Wikipedia article
CTC - Counter/Timer Circuit
Definition: a module that can be used as counter or timer
Wikipedia article
Chipset
Definition: group of chips designed to work with a CPU to preform basic functions such as bus interfaces
Wikipedia article
Chip package
Definition: The container that holds the integrated circuits die, wire-bound to the pins
AKA: chip carrier, chip container
Wikipedia article
CPU - Central Processing Unit
Definition: a chip or (rarely) a collection of chips that preforms the processing of data for a computer. On microcontroller the CPU is a portion of the chip that does the computations or processing of data.
Wikipedia article
Core, ie Processor Core
Definition: the portion of the chip that is defined as the processing unit. Multi-core CPUs have multiply processing unit
Wikipedia article



DAC - Digital to Analog Converter
Definition: Unit used to output analog signals from digital signals. Sometimes used in MCUs
Wikipedia article
DAI - Digital Applications Interface
Definition: a module within SHARC DSPs for user-definable access to peripherals
DALI - Digitally Addressable Lighting Interface
Definition:a electrical interface and bus protocol mainly used to control lightning systems
Wikipedia article
DDC - Display Data Channel
Definition: digital communication protocols between a computer display and a graphics adapter. Protocals include DDC1, DDC2 or DDC2B, DDC2Ab, DDC2B+, DDC3Bi, E-DDC
Wikipedia article
DES - Data Encryption Standard
Definition: a block cipher that uses shared secret encryption
Wikipedia article
Die
Definition: The actual silicon integrated circuit inside the chip package
Wikipedia article
DRAM - Dynamic random access memory
Definition: Memory that stores each bit in a capacitor, which needs to be refreshed or it will lose it data.
Wikipedia article
DMA - Direct memory access
Definition: allows hardware to access memory independent of CPU.
Wikipedia article
DMOS - Double-Diffused Metal-Oxide-Semiconductor
Definition: Used in power MOSFETs.
Wikipedia article
DPI - Digital Peripheral Interface
Definition: a module within SHARC DSPs for user-definable access to peripherals



Embedded system
Definition: A computer system design for a specific operation, unlike general purpose computers like desktop computers, or servers
Wikipedia article
EPROM - Erasable Programmable Read-Only Memory
Definition: ROM that can be reprogrammed, usually erased using UV light. See UV-EPROM
Wikipedia article
EEPROM - Electronically Erasable Programmable Read-Only Memory
Definition: EPROM that can be erased using electricity, not UV light. Sometimes in circuit, which is much easier and more practical than UV-EPROMs. Flash is a type of EEPROM.
Wikipedia article
ECC - Error Correction Code
Definition: A type of coding by adding redundancy to data for error correction.
Wikipedia article
EMA - External Memory Addressing
Definition:
Wikipedia article
EPort
Definition:?
ESCI
Definition:?



FIFO - First In, First Out
Definition: a way data stored in a queue is processed
Wikipedia article
FPU - Floating Point Unit
Definition: a separate unit for preforming floating point operation, as separate chip, sometimes a separate unit on the processor and included in the instruction set. Sometimes a co-processor is referred to as an FPU, even if its math operations are not all floating point
Wikipedia article
FPGA - Field Programmable Gate Array
Definition: Programmable logic chip, the most complex and expensive programmable logic chip, generally used for development.
Wikipedia article



GPIO - General Purpose Input/Output
Definition: pins that can be assigned input or output and be used for any reason
Wikipedia article
G.Lite
Definition: an ADSL telecommunications protocol, AKA ITU G.992.2
Wikipedia article



HDLC - High-Level Data Link Control
Definition: Internet data transfer protocol
Wikipedia article
HMOS - High-preformance NMOS or high-speed NMOS
Definition: Depletion load NMOS logic gates, for higher speed and lower power consumption
Wikipedia article
Hsync - Horizontal Synchronization
Definition: has to do with synchronizing display on a CRT monitor or TV
Wikipedia article
Hyper-threading
Definition: Intel's term for its simultaneous multi-threading
Wikipedia article



ICSP - In-Circuit Serial Programming
Definition: a method of directly programming certain microcontrollers
Wikipedia article
IDE - Integrated Drive Electronics
Definition: the first version of ATA/ATAPI interface (ATA-1) for compunications with hard drives, CDROMs, etc
Wikipedia article
IRSCI - Infrared Serial Communications Interface
Definition: module which allows high-speed asynchronous communications with peripheral devices and other MCUs
Wikipedia article
IrDA - Infrared Data Association
Definition: a communications protocol for the short-range exchange of data over infrared light
Wikipedia article
ISA - Instruction Set Architecture
Definition: Processor's architecture defined by a standard Instruction Set
Wikipedia article
IEBus - Inter Equipment Bus
Definition: a two wire bus used in the automotive industry as a communications bus between various devices
Wikipedia article
Interrupt
Definition: A signal that alerts a unit an event need attending
Wikipedia article
I/O - Input/Output
Definition: IC pins can designated as input or output or in some cases bidirectional, allowing input and output on the same pin
Wikipedia article
I2C or I2C - Inter-Integrated Circuit
Definition: a popular serial communication protocol, pronounced "I squared C"
Wikipedia article



JTAG
Definition: a communications protocol commonly used for debugging and programing devices
Wikipedia article



L1 cache - Level 1 cache
Definition: the first level of cache memory, used for data and program code, sometimes shared, sometimes separate memory for each. Generally small in size, but is fast running at the speed of the processor. Data cache is in Bytes or Kilobytes. Instruction cache is Instructions or Kilo-instructions, size depending on the width of instructions.
Wikipedia article
L2 cache - Level 2 cache
Definition: Shared data and instruction memory, larger in size to L1 cache but slower
Wikipedia article
L3 cache - Level 3 cache
Definition: Shared data and instruction memory, very larger in size, but slower than L2 cache, rarely used except in servers
Wikipedia article
LIN or LIN-Bus - Local Interconnect Network
Definition: a vehicle bus standard or computer networking bus-system
Wikipedia article
LVD - Low Voltage Detection
Definition: a reset signal when Vcc falls below Vref
Wikipedia article



NMOS [logic]
Definition:logic gates made from all N-channel MOSFETs, with a NMOS load
Wikipedia article



McBSP - Multichannel Buffered Serial Port
Definition: comunication module used by some TMS320 DSPs
MCU - Micro-Controller Unit
Definition: a chip that contains a CPU and other support functions designed to reduce the number of needed external components, and simplify users ability to preform tasks. MCUs commonly have on-chip RAM, ROM, timers, and clock generators. Other common functions are PWM, ADC, and SPI
Wikipedia article
MI Bus - Motorola Interconnect Bus
Definition: a serial communications interface using a single line from one Master to as many as 8 slave devices.
MMU - Memory Management Unit
Definition: unit responsible for handling accesses to memory requested by the CPU
Wikipedia article
MMX
Definition: extension to x86 instruction set, adding single instruction, multiple data (SIMD) instructions
Wikipedia article
MSSP - Master Synchronous Serial Port
Definition: a module is a serial interface useful for communican ing with other peripheral or microcontroller devices
Wikipedia article
Microwire or ╬╝Wire
Definition: a restricted subset of Serial Peripheral Interface Bus
Wikipedia article



OSD - On Screen Display
Definition: an image superimposed on a screen picture
Wikipedia article
OTP [ROM] - One Time Programmable
Definition: ROM that can be written only once, one type is fuse-programmable ROM
Wikipedia article
OST - Oscillator Start-up Timer
Definition: a timer that keeps the a microcontroller in reset until the crystal oscillator is stable
Wikipedia article



PAL - Programmable Array Logic
Definition: A programmable logic chip, to replace a bunch of logic gates and registers. One time programmable (OTP). The simplest of programmable logic, similar to CPLDs and FPGAs.
Wikipedia article
Parity
Definition: A very simple type of coding by adding redundancy to data for error correction.
Wikipedia article
PMP - Parallel Master Port
Definition: a parallel 8-bit I/O module, specifically designed to communicate with a wide variety of parallel devices, such as communication peripherals, LCDs, external memory devices and microcontrollers
PIO - Programmed input/output
Definition: a method of transferring data between the CPU and a peripheral
Wikipedia article
POR or PoR - Power-on Reset
Definition: a microcontroller or microprocessor peripheral that generates a reset signal when power is applied to the device. It ensures that the device starts operating in a known state.
Wikipedia article
PSP - Parallel Slave Port
Definition: allows 8-bit asynchronous bidirectional data transfer between microcontroller and external devices
Wikipedia article
PS/2
Definition: a keyboard/mouse interface that replaces the AT conection. It uses serial data at 10 to 16 kHz with 1 stop bit, 1 start bit, 1 parity bit (odd)
Wikipedia article
PWM - Pulse Width Modulator
Definition: a unit that outputs a clock signal with a constant period, and its on-time is controlled by the input. Commonly used in MCUs.
Wikipedia article
PWRT - Power-up Timer
Definition:
Wikipedia article
PCI
Definition: A computer bus for connecting peripheral devices.
Wikipedia article
PCMCIA
Definition: A computer bus for cards in laptops, aka PC Card.
Wikipedia article
PIO - Programmer Input/Output
Definition: A method of transferring data between the CPU and peripheral device.
Wikipedia article
PLL - Phase-Locked Loop
Definition: a type of feedback loop to generate stable oscilations for signal generation and recovery.
Wikipedia article
PMOS [logic]
Definition: logic gates made from all P-channel MOSFETs, with a PMOS load
Wikipedia article
PMMU - Paged Memory Management Unit
Definition: unit responsible for handling accesses to memory requested by the CPU
Wikipedia article
PPU - Picture Processing Unit
Definition: the name used by Nintendo for the Graphics Processing Unit (GPU) in the Nintendo and Super Nintendo
Wikipedia article
Prescaler
Definition: a frequency divider
Wikipedia article



QMC
Definition:
Wikipedia article
QSPI - Queued Serial Peripheral Interface
Definition: One type of SPI controller that uses a data queue with programmable queue pointers
Wikipedia article
QUICC - QUad Integrated Communications Controller
Definition: a family of Motorola and Freescale microcontrollers
Wikipedia article



RNG - Random Number Generator
Definition: a module for generating random numbers
Wikipedia article
RS-232
Definition: standard serial communications protocol, used in computer serial ports
Wikipedia article
RS-432
Definition: serial communications protocol, similar to RS-232
Wikipedia article
RS-485
Definition: serial communications protocol, similar to RS-232
Wikipedia article



SCI - Serial Communication Interface
Definition: Serial communication
Wikipedia article
Servo - Servomechanism
Definition: A controlled device for rotating
Wikipedia article
SIMD - Single Instruction, Multiple Data
Definition: processor instruction that preforms the same operation on the multiple data sets in parallel
AKA: vector instructions
Wikipedia article
SIO - Special Input/Output
Definition: Special Input/Output (Special I/O or SIO) are inputs and/or outputs designated to perform specialized functions or have specialized features. These can include hardware interrupts, analog or mixed signal, serial communication, external reset, switch debounce, input pull-up or down resistors.
Wikipedia article
SLDM - Serial Data Link Module
Definition: serial communication on a J1850 type multiplexed serial bus via an external J1850 bus transceiver
Wikipedia article
SMBus or SMB - System Management Bus
Definition: a single-ended simple two-wire bus for the purpose of lightweight communication
Wikipedia article
SPI - Serial Peripheral Interface
Definition: a serial communication protocol
Wikipedia article
SoC - System on Chip
Definition: Combination of many components on a single chip (die), components which traditionally have their own individual chips. Geode is a SoC, with integrated CPU, chipset, and video controller
Wikipedia article
Socket
Definition: Connector for inserting chips on circuit boards
Wikipedia article
SRAM - Static RAM
Definition: stores data in memory that does not need to be refreshed
Wikipedia article
SSC - Serial Servo Controller
Definition: interfacing servos with a computer using RS232 communications
SSI - Serial Synchronous Interface
Definition: serial interface standard for industrial applications
Wikipedia article
SSIO - Serial Synchronous Input/Output port
See: Serial Synchronous Interface
SSP - Synchronous Serial Port
Definition: a controller that supports the Serial Peripheral Interface, 4-wire Synchronous Serial Interface, and Microwire serial buses
Wikipedia article
SSE - Streaming SIMD Extensions
Definition: an extension to the x86 instruction set, to preform single instruction, multiple data (SIMD) operation. SSE, SSE2, SSE3, and SSE4 are all added extensions
Wikipedia article
SSSE3 - Supplemental Streaming SIMD Extension 3
Definition: another extension to the x86 instruction set
Wikipedia article
Sync processor
Definition: unit that generates Vsync and Hsync signals for the display of a CRT monitor or TV
Wikipedia article



UART - Universal Asynchronous Receiver/Transmitter
Definition: Serial communications device, used in combination with a communications protocol such as RS-232
Wikipedia article
USART - Universal Synchronous/Asynchronous Receiver/Transmitter
Definition: Serial communications device, using synchronous or asynchronous comunications
Wikipedia article
UPI - Universal Peripheral Interface
Definition: ?
USI - Universal Serial Interface
Definition:
-
Utopia
Definition: an ATM protocol specification
Wikipedia article
USB - Universal Serial Bus
Definition: an industry standard developed in the mid-1990s that defines the cables, connectors and protocols used for connection, communication and power supply between computers and electronic devices.
Wikipedia article
USB OTG - USB On-The-Go
Definition:a specification that allows USB devices such as digital audio players or mobile phones to act as a host allowing a USB Flash Drive, mouse, or keyboard to be attached
Wikipedia article
USI - Universal Serial Interface
Definition: ?



Vacuum fluorescent display
Definition: an illuminated display used in equipment such as video cassette recorders, car radios, and microwave ovens.
Wikipedia article
Vcc
Definition: positive supply voltage. historically for analog (bipolar) devices. Vdd is used for digital (FET), but Vcc has been used for both
Wikipedia article
Vsync - Vertical Synchronization
Definition: has to do with synchronizing display on a CRT monitor or TV
Wikipedia article



WDT - Watchdog timer
Definition: a timer that preforms a reset if the main program freezes
Wikipedia article



3DNow!
Definition: addition to the x86 instruction set, by AMD
Wikipedia article
1-Wire
Definition: bus communication protocal using a single wire
Wikipedia article
2-Wire
Definition:
Wikipedia article


This page was created by Jeff Israel
Images and content are under CC-BY-SA 3.0 license, unless otherwise noted. The code for this page is licenced under GPL
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