- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383098 > ID82C54 (INTERSIL CORP) CMOS Programmable Interval Timer PDF資料下載
參數(shù)資料
| 型號： | ID82C54 |
| 廠商： | INTERSIL CORP |
| 元件分類： | XO, clock |
| 英文描述： | CMOS Programmable Interval Timer |
| 中文描述： | 3 TIMER(S), PROGRAMMABLE TIMER, CDIP24 |
| 封裝： | CERAMIC, DIP-24 |
| 文件頁數(shù)： | 12/17頁 |
| 文件大小： | 142K |
| 代理商： | ID82C54 |
4-12
Counter
New counts are loaded and Counters are decremented on
the falling edge of CLK.
The largest possible initial count is 0; this is equivalent to 2
16
for binary counting and 10
4
for BCD counting.
The counter does not stop when it reaches zero. In Modes 0,
1, 4, and 5 the Counter “wraps around” to the highest count,
either FFFF hex for binary counting or 9999 for BCD count-
ing, and continues counting. Modes 2 and 3 are periodic; the
Counter reloads itself with the initial count and continues
counting from there.
FIGURE 15. GATE PIN OPERATIONS SUMMARY
FIGURE 16. MINIMUM AND MAXIMUM INITIAL COUNTS
SIGNAL
STATUS
MODES
0
1
LOW OR
GOING LOW
Disables Counting
-
RISING
-
HIGH
Enables Counting
-
1) Initiates
Counting
2) Resets output
after next clock
Initiates Counting Enables Counting
2
1) Disables
counting
2) Sets output im-
mediately high
1) Disables
counting
2) Sets output im-
mediately high
1) Disables
Counting
-
3
Initiates Counting Enables Counting
4
-
Enables Counting
5
Initiates Counting
-
MODE
MIN COUNT
MAX COUNT
0
1
0
1
1
0
2
2
0
3
2
0
4
1
0
5
1
0
NOTE: 0 is equivalent to 2
16
for binary counting and 10
4
for BCD
counting.
82C54
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ID82C54-10 | CMOS Programmable Interval Timer |
| ID82C54-12 | CMOS Programmable Interval Timer |
| ID82C59A | CMOS Priority Interrupt Controller |
| ID82C59A-5 | CMOS Priority Interrupt Controller |
| ID82C59A-12 | CMOS Priority Interrupt Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ID82C54/+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Timer Circuit |
| ID82C54-10 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS Programmable Interval Timer |
| ID82C54-12 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS Programmable Interval Timer |
| ID82C55A | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI PERIPH PRG-I/O 5V 8MHZ 40CDIP IND RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| ID82C55A/+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral Interface |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。