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參數(shù)資料
| 型號： | LS7566 |
| 廠商： | LSI Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | 24-BIT FOUR-AXES QUADRATURE COUNTER |
| 中文描述： | 24位的4軸正交計數(shù)器 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大小： | 97K |
| 代理商： | LS7566 |
I/O PINS
: The following is a description of the input/out pins.
RSO(
Pin 3)
, RS1
(Pin 2)
, RS2
(Pin1).
Inputs. These three inputs select the hardware registers for read/write access according to Table 1.
TABLE 1
CS/ RS2 RS1 RS0 RD/ WR/ SELECTED REGISTER
1
x
x
x
x
x
x
x
x
0
x
x
x
x
1
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
1
1
0
0
1
0
0
0
0
1
0
1
0
0
1
1
0
0
0
1
1
1
0
0
0
0
0
1
0
0
0
1
1
0
0
1
0
1
0
0
1
1
1
0
1
0
0
1
0
1
0
1
1
0
1
1
0
1
0
1
1
1
1
OPERATION
none
none
none
READ (see Note 2)
READ
READ
READ
READ
READ
READ
none
WRITE
WRITE
WRITE
none
WRITE
WRITE
WRITE
WRITE
x
0
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
none
none
none
[ISR:IMR]
MDR0
MDR1
STR
OL0
OL1
OL2
none
IMR
MDR0
MDR1
none
PR0
PR1
PR2
CMR
Note 1
. x indicates don’t care case.
Note 2
. DB0 through DB3 contain IMR B0 through B3; DB4 through DB7 contain ISR B0 through B3.
CHS0
(Pin 5),
CHS1
(Pin 4)
Inputs. These two inputs select one of four axes for read/write access according to the following table.
The registers within the axis are selected according to Table 1.
TABLE 2
CHS1 CHS0 AXIS
0
0
1
1
0
1
0
1
x0
x1
x2
x3
RD/
(Pin 8) Input. A low on RD/ input accesses an ad-
dressed register for read and places the data on the
octal databus, DB<7:0>. The register selection is
made according to Table 1.
CS/
(Pin 9) Input. A low on the CS/ input enables the
chip for read or write operation. When the CS/ input is
high, read and write operations are disabled and the
databus, DB<7:0>, is placed in a high impedance
state.
WR/
(Pin 10) Input. A low pulse on the WR/ input
writes the data on the databus, DB<7:0>, into the ad-
dressed register according to Table 1. The write op-
eration is completed at the trailing edge of the WR/
pulse.
DB<7:0>
(Pin 18 thru Pin 11) Input/Output.
The octal databus, DB<7:0>, is the input/output portal
for write and read data transfers between LS7566 and
the outside world. During a read operation, when both
CS/ and the RD/ inputs are low, DB<7:0> are outputs.
During a write operation, when both CS/ and WR/ are
low, DB<7:0> are inputs. When CS/ is high, DB<7:0>
are in high impedance state independent of the states
of RD/ and WR/.
PCK
(Pin 21) Input. A clock applied at PCK input is
used for validating the logic states of the A and B
quadrature clocks and the INDX input.
The PCK input frequency, f
PCK,
is divided down by a
factor of 1 or 2 according to bit7 of MDR0. The re-
sultant clock is used to sample the logic levels of the
7566-112904-5
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相關代理商/技術參數(shù) |
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|---|---|
| LS7566R | 制造商:LSI 制造商全稱:LSI 功能描述:24-BIT x 4-AXES QUADRATURE COUNTER |
| LS75C2D | 制造商:Citizen Finetech Miyota Co Ltd 功能描述:CITIZEN SWITCH a??LS75C2D-Ta?? |
| LS75C2D-T | 功能描述:Tactile Switch SPST-NO Top Actuated Surface Mount 制造商:citizen 系列:LS75C 包裝:剪切帶（CT） 零件狀態(tài):有效 電路:SPST-NO 開關功能:關-瞬時 不同電壓時的觸頭額定電流:0.02A @ 12VDC 致動器類型:標準 安裝類型:表面貼裝 PCB 外致動器高度（從引腳計算）:0.50mm 致動器方向:頂部觸動 端子類型:SMD（SMT）接片 外形:2.80mm x 1.90mm 照明:不發(fā)光 照明電壓（標稱值）:- 照明類型，顏色:- 作用力:160gf 侵入防護:- 特性:- 致動器材料:- 開關行程:0.15mm 機械壽命:300，000 次循環(huán) 工作溫度:- 標準包裝:1 |
| LS75C4D | 制造商:Citizen Finetech Miyota Co Ltd 功能描述:CITIZEN SWITCH a??LS75C4D-Ta?? |
| LS75C4D-T | 功能描述:Tactile Switch SPST-NO Top Actuated Surface Mount 制造商:citizen 系列:LS75C 包裝:剪切帶（CT） 零件狀態(tài):有效 電路:SPST-NO 開關功能:關-瞬時 不同電壓時的觸頭額定電流:0.02A @ 12VDC 致動器類型:標準 安裝類型:表面貼裝 PCB 外致動器高度（從引腳計算）:0.50mm 致動器方向:頂部觸動 端子類型:SMD（SMT）接片 外形:2.80mm x 1.90mm 照明:不發(fā)光 照明電壓（標稱值）:- 照明類型，顏色:- 作用力:240gf 侵入防護:- 特性:- 致動器材料:- 開關行程:0.15mm 機械壽命:300，000 次循環(huán) 工作溫度:- 標準包裝:1 |
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