UM82 Search Results

82C8167

Abstract: UM82C8167 UM82C8
Contextual Info: UMC UM82C8167 S S 2 S S S 2 S 2 Î Real-Time Clock RTC eatures Microprocessor compatible (8-bit data bus) Milliseconds through month counters 56 bits of RAM with comparator to compare the real time counter to the RAM data 2 IN TERRU PT OUTPUTS with 8 possible interrupt

74HC612

Contextual Info: UIV1C UM82C286 MËÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊËÊÊÊÊKÊÊÊBBBËHÈ P C /A T C om patible Wêêêêêêêêêêêêêêêêêêêêêêêêêêêêêêêêêêêê Chip S e t F eatures • 100% hardware and software compatible w ith the IBM PC/AT

82C11

Abstract: um82c11 82450 um82290 AN/parallel port 378
Contextual Info: I UMC UM82290 ~S S S S S S S S S sin9ie- ° hip Muiti-i/o y Features • An integrated chip of PC/AT serial/parallel add-on card. ■ Including 2 serial ports 82450 ■ Also including 1 print port (UM82C11) ■ And also I/O decoder included. General Description

UM82450

Contextual Info: UMC UM82450 Asynchronous Communication — Element ACE Mi Feature • Adds or deletes standard asynchronous communication bits (start, stop, and parity) to or from serial data stream ■ Full double buffering eliminates need for precise synchronization ■ Independently controlled transmit, receive, I ine status,

block diagram of intel 8253 chip

Abstract: 8253 timer 8253 intel um8253 8253
Contextual Info: UMC UM8253 -5 Programmable Interval Timer / Features • M C S -85 com patible U M 8253-5 ■ ■ 3 independent 16-bit counters ■ DC to 2.6 MHz ■ C ount bina ry or BCD Programmable counter modes ■ Single +5V supply General Description The U M 8253

Contextual Info: UNITED MICROELECTRONICS 15 UM82C55A » e | 13aSfllS D000513 2 CMOS Programmable Peripheral Interface P IN FEATURES • ■ ■ ■ ■ ■ ■ ■ ■ ■ Pin Compatible with NMOS 8255A 24 Programmable I/O Pins Fully TT L Compatible Bus-hold Circuitry on all I/O Ports Eliminates Pull-up

Contextual Info: UNITED MICROELECTRONICS UM82C8S2 T32SÛS5 DGGDIIB 4 3DE D 5 3 -3 3 'ô 3 Multi I/ O Fo r X T Features • ■ ■ * Supports game port Supports 2nd serial port Centronics printer interface Independent control of transmit, receive, line status and data set interrupts

Contextual Info: 3DE D UNITED MICROELECTRONICS r • UM82C382 T3aSflSE 0000].ti3 h ~r~ Address Buffer Features ■ ■ 24 bit address line buffer Advanced 1.2/i CMOS Technology I ■ Supports 256K x 1 and 1M x 1 DRAM refresh 120 pin flat package Pin Configuration < ' -u iû Z Z ^

pin DIAGRAM OF IC 82C55

Abstract: 8255 interface with 8086 Peripheral block diagram DMA interface 8237 WITH 8088 8255 interface with 8086 Peripheral 8255 with 8088 computer xt 8088 ic dma 8237 8088
Contextual Info: U iV iC — — UM82C086 Integrated Peripheral chip ip c — mm Features • Clock generator, including 82C84A and peripheral clock ■ Command decoder and bus controller, including 82C88 ■ Programmable interval timer, including 8254 and speaker port • 82C55A-5 programmable peripheral interface

t523

Abstract: D8000H um82c210 UM82C212 registers OF 80286 bios call Unicorn Microelectronics
Contextual Info: UNICORN MICROELECTRONICS TS7fl7flfl OOOOflOl Ü 2ME D UM82C212 Memory Controller U3V1C T ~ £ > -3 3 -3 1 2. UM82C212 MEMORY CONTROLLER The UM82C212 performs the memory control functions in the UM82C210 system. Several distinguished features are integrated in the UM82C212 that makes the

6164 ram memory

Abstract: intel 6164 ram internal diagram of 7473 pin configuration of intel 80386 Unicorn Microelectronics 6164 memory PA10 PA11 PA12 PA13
Contextual Info: UNICORN MICROE LE CTRON ICS S4E D • ISTÖTÖÖ OOOQÖÖ1 5 ■ UM82C384 Memory Controller I General Description The UM82C384 is one of UMC’s High End AT HEAT Chip Set. It provides memory control functions which facilitate wide ranges of DRAM and CPU speed

82C231

Abstract: Unicorn Microelectronics um82c232 80286 82c206 82C206 UM82C231 M16I45 82c232 clk21 refresh logic
Contextual Info: UNICORN MICROELECTRONICS S4E D • ^570700 000GÖ17 4 UM82C231 System/Memory Controller 1. General Decription The UM82C231 is a system/memory controller. It performs the CPU interface, AT system bus interface and memory interface functions. 2. Features • CPU interface and bus control.

pin configuration of 8288

Abstract: 8288 bus controller generator synchronization UM82C88 UM82C8
Contextual Info: UNITED MICROELECTRONICS TE 1 d e | ^355012 Q O D O s m m T ^ S ',3 " 5 3 - 0 3 . UM82C84A/AE C M O S Clock Generator & Driver PIN CONFIGURATION FEATURES • Generates the System Clock for CMOS or NMOS Microprocessors. ■ Up to 25 MHz Operation. ■ Uses a Parallel Mode Crystal Circuit or

1mx1 DRAM

Abstract: AA2035 UM82C380 256KB static RAM 6182s UM82152 UM82C384 AADS PA10 Unicorn Microelectronics
Contextual Info: UNICORN MICROE LE CTRON ICS E4E D • =1270700 QOQOTOH T ■ UM82C389 Austek Cache Interface I General Description The UM82C389 Cache Interface Chip is one of the UMC UM82C380 series High End AT HEAT chip set. As a DRAM controller, UM82C389 works in tandem with

UM8272A

Abstract: intel floppy disk controller 8272 intel 8272 8272 intel block diagram of 8272 floppy disk controller um8272 intel floppy disk controller 8272a saAK 12 intel d 8272
Contextual Info: UM C UM8272A l 4-4 Floppy Disk Controller Features • Data transfers in DMA or Non-DMA mode ■ IBM compatible in both single and double density ■ Parallel seek operations on up to four drives recording formats ■ Programmable data record lengths: ■ Compatible w ith all intel and most other micropro­

AEN 6

Contextual Info: UMC UM82C88 Bus Controller Features • Pin com patible w ith bipolar 8288 High perform ance HCMOS process ■ Provides advanced com mands fo r m u ltim aster busses Single 5V power supply ■ 3-state com m and outputs L o w power operation ■ B ipolar drive capability

DATA UM82C84AE

Abstract: 82C84AE um82c84
Contextual Info: UMC UM82C84AE i CMOS Clock Generator Driver Features • Generates the system clock for CMOS or NMOS Microprocessors ■ Up to 25 MHz operation ■ Uses a parallel mode crystal circuit or external frequency source ■ Provides ready synchronization ■ Generates system reset output from schmitt trigger

um82c211

Contextual Info: UM82C206 INTEGRATED PERIPHERAL CONTROLLER P R E L IM IN A R Y FEATURES I Fu lly com patible w ith PC /A T architecture I 8 MHz D M A clock with programmable internal divider for 4 MHz operation I Fu lly com patible w ith 8237 D M A controller, 8259 interrupt

Contextual Info: UNITED MICROELECTRONICS 30E D ^3B5fl5B '□DOQlt.5 T M'~T-5 3 .-33~Q\ UM82C384 Memory Controller Features • ■ * ■ Supports Supports Supports Supports 16 MHz, 20 MHz and 25 MHz Intel 80386 D R A M speed range from 60ns to 120ns 256K and 1M D R A M S up to 12M Bytes on board memory

Contextual Info: UNITED MICROELECTRONICS IS UM8250A DE T3ESA1S DDDDSD? 7 Asynchronous Communication Element ACE)i FEATURES • A d ds o r D eletes S tan d ard A synch ro no us C o m m u n ic a tio n Bits (S ta rt, PIN CONFIGURATION c c c 3 3 v DD 39 □ Rl 38 3 RLSD °3 c

Contextual Info: UNITED MICROELECTRONICS TE UM8253/-5 M C S -8 5 Compatible UM 8253-5 3 Independent 16-bit Counters DC to 2.6 MHz UM 8253 DC to 5.0 M Hz (UM 8253-5) Programmable Counter Modes Count Binary or BCD Single +5V Supply UM8259A/A-2 FEATURES • iAPX 86, iAPX 88 Compatible

Contextual Info: UNITE» MICROELECTRONICS UM82C388 3QE D • ^355655 DOD01 fab 1 5^-33 ^ \ INTEL Cache Interface Features ■ Supports 16 MHz, 20 MHz and 25 MHz Intel 80386 Supports 2 5 6 K and 1M DRAM S ■ Supports 25 MHz 80386 with 82385 cache controller 1.2/it CMOS technology

PA10

Abstract: PA11 PA12 PA13 PA15 UM82C382 A20GATE
Contextual Info: 3DE D UNITED MICROELECTRONICS r UM82C382 T3aSflSE 0000].ti3 h ~r~ Address Buffer • Features ■ ■ 24 bit address line buffer Advanced 1.2/i CM O S Technology I ■ Supports 2 5 6 K x 1 and 1M x 1 D R A M refresh 120 pin flat package Pin Configuration < ' -u iû Z Z ^

UM8250

Abstract: um82450 Modem Status Indicator CMC82450 DS1488 UVISOR
Contextual Info: U iV iC UM82450 Asynchronous Com m unication Elem ent A C E Feature Adds or deletes standard asynchronous communication bits (start, stop, and parity) to or from serial data stream Full double buffering eliminates need fo r precise synchronization Independently controlled transmit, receive, I ine status,