Zakładka z wyszukiwarką danych komponentów
  Polish  ▼
ALLDATASHEET.PL

X  

CS82C54 Arkusz danych(PDF) 3 Page - Intersil Corporation

Numer części CS82C54
Szczegółowy opis  CMOS Programmable Interval Timer
Download  17 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Producent  INTERSIL [Intersil Corporation]
Strona internetowa  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CS82C54 Arkusz danych(HTML) 3 Page - Intersil Corporation

  CS82C54 Datasheet HTML 1Page - Intersil Corporation CS82C54 Datasheet HTML 2Page - Intersil Corporation CS82C54 Datasheet HTML 3Page - Intersil Corporation CS82C54 Datasheet HTML 4Page - Intersil Corporation CS82C54 Datasheet HTML 5Page - Intersil Corporation CS82C54 Datasheet HTML 6Page - Intersil Corporation CS82C54 Datasheet HTML 7Page - Intersil Corporation CS82C54 Datasheet HTML 8Page - Intersil Corporation CS82C54 Datasheet HTML 9Page - Intersil Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 17 page
background image
4-3
Functional Description
General
The 82C54 is a programmable interval timer/counter
designed for use with microcomputer systems. It is a general
purpose, multi-timing element that can be treated as an
array of I/O ports in the system software.
The 82C54 solves one of the most common problems in any
microcomputer system, the generation of accurate time
delays under software control. Instead of setting up timing
loops in software, the programmer configures the 82C54 to
match his requirements and programs one of the counters
for the desired delay. After the desired delay, the 82C54 will
interrupt the CPU. Software overhead is minimal and vari-
able length delays can easily be accommodated.
Some of the other computer/timer functions common to micro-
computers which can be implemented with the 82C54 are:
• Real time clock
• Event counter
• Digital one-shot
• Programmable rate generator
• Square wave generator
• Binary rate multiplier
• Complex waveform generator
• Complex motor controller
Data Bus Buffer
This three-state, bi-directional, 8-bit buffer is used to inter-
face the 82C54 to the system bus (see Figure 1).
Read/Write Logic
The Read/Write Logic accepts inputs from the system bus and
generates control signals for the other functional blocks of the
82C54. A1 and A0 select one of the three counters or the Con-
trol Word Register to be read from/written into. A “low” on the
RD input tells the 82C54 that the CPU is reading one of the
counters. A “low” on the WR input tells the 82C54 that the CPU
is writing either a Control Word or an initial count. Both RD and
WR are qualified by CS; RD and WR are ignored unless the
82C54 has been selected by holding CS low.
CLK 2
18
I
CLOCK 2: Clock input of Counter 2.
A0, A1
19 - 20
I
ADDRESS: Select inputs for one of the three counters or Control Word Register for read/write
operations. Normally connected to the system address bus.
CS
21
I
CHIP SELECT: A low on this input enables the 82C54 to respond to RD and WR signals. RD and
WR are ignored otherwise.
RD
22
I
READ: This input is low during CPU read operations.
WR
23
I
WRITE: This input is low during CPU write operations.
VCC
24
VCC: The +5V power supply pin. A 0.1µF capacitor between pins VCC and GND is recommended
for decoupling.
Pin Description (Continued)
SYMBOL
DIP PIN
NUMBER
TYPE
DEFINITION
A1
A0
SELECTS
0
0
Counter 0
0
1
Counter 1
1
0
Counter 2
1
1
Control Word Register
CONTROL
WORD
REGISTER
COUNTER
2
COUNTER
1
COUNTER
0
OUT 2
GATE 2
CLK 2
OUT 1
GATE 1
CLK 1
OUT 0
GATE 0
CLK 0
WR
RD
D7 - D0
A0
A1
CS
FIGURE 1. DATA BUS BUFFER AND READ/WRITE LOGIC
FUNCTIONS
8
DATA/
BUS
BUFFER
READ/
WRITE
LOGIC
82C54


Podobny numer części - CS82C54

ProducentNumer częściArkusz danychSzczegółowy opis
logo
Intersil Corporation
CS82C54 INTERSIL-CS82C54 Datasheet
386Kb / 22P
   CMOS Programmable Intervel Timer
CS82C54-10 INTERSIL-CS82C54-10 Datasheet
386Kb / 22P
   CMOS Programmable Intervel Timer
CS82C54-10Z INTERSIL-CS82C54-10Z Datasheet
386Kb / 22P
   CMOS Programmable Intervel Timer
CS82C54-10Z96 INTERSIL-CS82C54-10Z96 Datasheet
426Kb / 22P
   CMOS Programmable Interval Timer
CS82C54-12 INTERSIL-CS82C54-12 Datasheet
386Kb / 22P
   CMOS Programmable Intervel Timer
More results

Podobny opis - CS82C54

ProducentNumer częściArkusz danychSzczegółowy opis
logo
UMC Corporation
UM82C54 UMC-UM82C54 Datasheet
1Mb / 16P
   CMOS PROGRAMMABLE INTERVAL TIMER
logo
Intersil Corporation
CS82C54-10Z96 INTERSIL-CS82C54-10Z96 Datasheet
426Kb / 22P
   CMOS Programmable Interval Timer
logo
Renesas Technology Corp
82C54 RENESAS-82C54 Datasheet
679Kb / 23P
   CMOS Programmable Interval Timer
Sep 15, 2015
logo
OKI electronic componet...
MSM82C53-2RS OKI-MSM82C53-2RS Datasheet
149Kb / 19P
   CMOS PROGRAMMABLE INTERVAL TIMER
MSM82C54-2RS OKI-MSM82C54-2RS Datasheet
161Kb / 23P
   CMOS PROGRAMMABLE INTERVAL TIMER
logo
Mitsubishi Electric Sem...
M5M82C54P MITSUBISHI-M5M82C54P Datasheet
916Kb / 11P
   CMOS PROGRAMMABLE INTERVAL TIMER
logo
Toshiba Semiconductor
TMP82C53 TOSHIBA-TMP82C53 Datasheet
326Kb / 15P
   PROGRAMMABLE INTERVAL TIMER
logo
Intel Corporation
8254 INTEL-8254 Datasheet
835Kb / 21P
   PROGRAMMABLE INTERVAL TIMER
logo
Samsung semiconductor
KS82C54 SAMSUNG-KS82C54 Datasheet
953Kb / 15P
   PROGRAMMABLE INTERVAL TIMER
logo
Digital Core Design
D8254 DCD-D8254 Datasheet
132Kb / 4P
   Programmable Interval Timer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17


Arkusz danych Pobierz

Go To PDF Page


Link URL




Polityka prywatności
ALLDATASHEET.PL
Czy Alldatasheet okazała się pomocna?  [ DONATE ] 

O Alldatasheet   |   Reklama   |   Kontakt   |   Polityka prywatności   |   Linki   |   Lista producentów
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com