參數(shù)資料
型號(hào)： CP82C54Z
廠商： Intersil
文件頁(yè)數(shù)： 7/22頁(yè)
文件大小： 0K
描述： IC OSC PROG TIMER 8MHZ 24PDIP
標(biāo)準(zhǔn)包裝： 15
類(lèi)型： 可編程計(jì)時(shí)器
頻率： 8MHz
電源電壓： 4.5 V ~ 5.5 V
電流 - 電源： 10mA
工作溫度： 0°C ~ 70°C
封裝/外殼： 24-DIP（0.600"，15.24mm）
包裝： 管件
供應(yīng)商設(shè)備封裝： 24-PDIP
安裝類(lèi)型： 通孔
產(chǎn)品目錄頁(yè)面： 1236 (CN2011-ZH PDF)
15
Counter will be loaded with new count on the next CLK pulse
and counting will continue from there.
Operation Common To All Modes
Programming
When a Control Word is written to a Counter, all Control
Logic, is immediately reset and OUT goes to a known initial
state; no CLK pulses are required for this.
Gate
The GATE input is always sampled on the rising edge of
CLK. In Modes 0, 2, 3 and 4 the GATE input is level
sensitive, and logic level is sampled on the rising edge of
CLK. In modes 1, 2, 3 and 5 the GATE input is rising-edge
sensitive. In these Modes, a rising edge of Gate (trigger)
sets an edge-sensitive flip-flop in the Counter. This flip-flop
is then sampled on the next rising edge of CLK. The flip-flop
is reset immediately after it is sampled. In this way, a trigger
will be detected no matter when it occurs - a high logic level
does not have to be maintained until the next rising edge of
CLK. Note that in Modes 2 and 3, the GATE input is both
edge-and level-sensitive.
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 216
for binary counting and 104 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
counting, and continues counting. Modes 2 and 3 are
periodic; the Counter reloads itself with the initial count and
continues counting from there.
N
NNN
0
3
0
2
0
1
0
FF
0
3
WR
CLK
GATE
OUT
CW = 1A LSB = 3
NN
N
0
3
0
2
0
3
0
2
0
1
N
NNN
0
3
0
2
0
1
0
FF
FE
WR
CLK
GATE
OUT
CW = 1A LSB = 3
WR
CLK
GATE
OUT
CW = 1A LSB = 3
N
NN
0
FF
LSB = 5
N
0
5
0
4
FIGURE 14. MODE 5
SIGNAL
STATUS
MODES
LOW OR
GOING LOW
RISING
HIGH
0
Disables Counting
-
Enables Counting
1
-
1) Initiates
Counting
2) Resets output
after next clock
-
2
1) Disables
counting
2) Sets output
immediately high
Initiates Counting Enables Counting
3
1) Disables
counting
2) Sets output
immediately high
Initiates Counting Enables Counting
4
1) Disables
Counting
-
Enables Counting
5
-
Initiates Counting
-
FIGURE 15. GATE PIN OPERATIONS SUMMARY
MODE
MIN COUNT
MAX COUNT
010
110
220
320
410
510
NOTE: 0 is equivalent to 216 for binary counting and 104 for BCD
counting.
FIGURE 16. MINIMUM AND MAXIMUM INITIAL COUNTS
82C54
相關(guān)PDF資料
PDF描述
VE-B6J-IU CONVERTER MOD DC/DC 36V 200W
NBXSPA008LN1TAG IC CLK XO 161.1328MHZ 6CLCC
VE-B63-IU CONVERTER MOD DC/DC 24V 200W
NBXSBA023LN1TAG IC CLK XO LVPECL 400MHZ 6CLCC
VE-B62-IU CONVERTER MOD DC/DC 15V 200W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CP82C55A 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI PERIPH PRG-I/O 5V 8M HZ 40PDIP COM 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
CP82C55A-5 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI PERIPH PRG-I/O 5V 5MHZ COM 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
CP82C55A-5S2469 制造商:Rochester Electronics LLC 功能描述:- Bulk
CP82C55A-5Z 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI W/ANNEAL PERIPH PRG- I/O 5V 5MHZ COM 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
CP82C55AR2489 制造商:Rochester Electronics LLC 功能描述:- Bulk
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*