參數(shù)資料
型號(hào)： CS82C54-10Z96
廠商： Intersil
文件頁(yè)數(shù)： 3/22頁(yè)
文件大?。?/td> 0K
描述： IC OSC PROG TIMER 10MHZ 28PLCC
標(biāo)準(zhǔn)包裝： 1
類(lèi)型： 可編程計(jì)時(shí)器
頻率： 10MHz
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： 28-LCC（J 形引線(xiàn)）
包裝： 標(biāo)準(zhǔn)包裝
供應(yīng)商設(shè)備封裝： 28-PLCC（11.51x11.51）
安裝類(lèi)型： 表面貼裝
產(chǎn)品目錄頁(yè)面： 1236 (CN2011-ZH PDF)
其它名稱(chēng)： CS82C54-10Z96DKR
11
82C54
MODE DEFINITIONS
The following are defined for use in describing the operation
of the 82C54.
CLK PULSE -
A rising edge, then a falling edge, in that
order, of a Counter’s CLK input.
TRIGGER -
A rising edge of a Counter’s Gate input.
COUNTER LOADING -
The transfer of a count from the CR
to the CE (See “Functional Description”)
MODE 0: INTERRUPT ON TERMINAL COUNT
Mode 0 is typically used for event counting. After the Control
Word is written, OUT is initially low, and will remain low until
the Counter reaches zero. OUT then goes high and remains
high until a new count or a new Mode 0 Control Word is
written to the Counter.
GATE = 1 enables counting; GATE = 0 disables counting.
GATE has no effect on OUT.
After the Control Word and initial count are written to a
Counter, the initial count will be loaded on the next CLK
pulse. This CLK pulse does not decrement the count, so for
an initial count of N, OUT does not go high until N + 1 CLK
pulses after the initial count is written.
If a new count is written to the Counter it will be loaded on
the next CLK pulse and counting will continue from the new
count. If a two-byte count is written, the following happens:
1. Writing the first byte disables counting. Out is set low
immediately (no clock pulse required).
2. Writing the second byte allows the new count to be
loaded on the next CLK pulse.
This allows the counting sequence to be synchronized by
software. Again OUT does not go high until N + 1 CLK
pulses after the new count of N is written.
COMMANDS
DESCRIPTION
RESULT
D7
D6
D5
D4
D3
D2
D1
D0
1
0
1
0
Read-Back Count and Status of Counter 0
Count and Status Latched for Counter 0
1
0
1
0
Read-Back Status of Counter 1
Status Latched for Counter 1
1
0
1
0
Read-Back Status of Counters 2, 1
Status Latched for Counter 2,
But Not Counter 1
1
0
1
0
Read-Back Count of Counter 2
Count Latched for Counter 2
1
0
1
0
Read-Back Count and Status of Counter 1
Count Latched for Counter 1,
But Not Status
1
0
1
0
Read-Back Status of Counter 1
Command Ignored, Status Already
Latched for Counter 1
FIGURE 7. READ-BACK COMMAND EXAMPLE
CS
RD
WR
A1
A0
01000
Write into Counter 0
01001
Write into Counter 1
01010
Write into Counter 2
01011
Write Control Word
00100
Read from Counter 0
00101
Read from Counter 1
00110
Read from Counter 2
00111
No-Operation (Three-State)
1
XXXX
No-Operation (Three-State)
0
1
X
No-Operation (Three-State)
FIGURE 8. READ/WRITE OPERATIONS SUMMARY
相關(guān)PDF資料
PDF描述
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CS82C54-12Z 功能描述:計(jì)時(shí)器和支持產(chǎn)品 W/ANNEAL PERIPH PRG- CNTR 5V 5MHZ RoHS:否 制造商:Micrel 類(lèi)型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
CS82C54-12Z96 功能描述:計(jì)時(shí)器和支持產(chǎn)品 W/ANNEAL PERIPH PRG- CNTR 5V 5MHZ RoHS:否 制造商:Micrel 類(lèi)型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
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