參數(shù)資料
型號(hào)： IS82C54Z
廠商： Intersil
文件頁(yè)數(shù)： 21/22頁(yè)
文件大?。?/td> 0K
描述： IC OSC PROG TIMER 8MHZ 28PLCC
標(biāo)準(zhǔn)包裝： 37
類型： 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： -40°C ~ 85°C
封裝/外殼： 28-LCC（J 形引線）
包裝： 管件
供應(yīng)商設(shè)備封裝： 28-PLCC（11.51x11.51）
安裝類型： 表面貼裝
8
82C54
Since the Control Word Register and the three Counters have
separate addresses (selected by the A1, A0 inputs), and each
Control Word specifies the Counter it applies to (SC0, SC1
bits), no special instruction sequence is required. Any
programming sequence that follows the conventions above is
acceptable.
CONTROL WORD FORMAT
A1, A0 = 11; CS = 0; RD = 1; WR = 0
D7
D6
D5
D4
D3
D2
D1
D0
SC1
SC0
RW1
RW0
M2
M1
M0
BCD
SC - SELECT COUNTER
SC1
SC0
0
Select Counter 0
0
1
Select Counter 1
1
0
Select Counter 2
1
Read-Back Command (See Read Operations)
RW - READ/WRITE
RW1 RW0
0
Counter Latch Command (See Read Operations)
0
1
Read/Write least significant byte only.
1
0
Read/Write most significant byte only.
1
Read/Write least significant byte first, then most
significant byte.
M - MODE
M2
M1
M0
0
Mode 0
0
1
Mode 1
X
1
0
Mode 2
X
1
Mode 3
1
0
Mode 4
1
0
1
Mode 5
BCD - BINARY CODED DECIMAL
0
Binary Counter 16-bit
1
Binary Coded Decimal (BCD) Counter (4 Decades)
NOTE: Don’t Care bits (X) should be 0 to insure compatibility with
future products.
POSSIBLE PROGRAMMING SEQUENCE
A1
A0
Control Word - Counter 0
1
LSB of Count - Counter 0
0
MSB of Count - Counter 0
0
Control Word - Counter 1
1
LSB of Count - Counter 1
0
1
MSB of Count - Counter 1
0
1
Control Word - Counter 2
1
LSB of Count - Counter 2
1
0
MSB of Count - Counter 2
1
0
POSSIBLE PROGRAMMING SEQUENCE
A1
A0
Control Word - Counter 0
1
Control Word - Counter 1
1
Control Word - Counter 2
1
LSB of Count - Counter 2
1
0
LSB of Count - Counter 1
0
1
LSB of Count - Counter 0
0
MSB of Count - Counter 0
0
MSB of Count - Counter 1
0
1
MSB of Count - Counter 2
1
0
POSSIBLE PROGRAMMING SEQUENCE
A1
A0
Control Word - Counter 2
1
Control Word - Counter 1
1
Control Word - Counter 0
1
LSB of Count - Counter 2
1
0
MSB of Count - Counter 2
1
0
LSB of Count - Counter 1
0
1
MSB of Count - Counter 1
0
1
LSB of Count - Counter 0
0
MSB of Count - Counter 0
0
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參數(shù)描述
IS82C54Z96 功能描述:計(jì)時(shí)器和支持產(chǎn)品 PERIPH PRG-CNTR 5V 8MHZ 28PLCC IND RoHS:否 制造商:Micrel 類型: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
IS82C55A 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI PERIPH PRG-I/O 5V 8MHZ 44PLCC 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
IS82C55A-5 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI PERIPH PRG-I/O 5V 5MHZ 44PLCC 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
IS82C55A-596 制造商:Rochester Electronics LLC 功能描述:- Bulk
IS82C55A-5Z 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI W/ANNEAL PERIPH PRG- I/O 5V 5MHZ 44PLCC 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
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