參數資料
型號: UPD1724x
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS
中文描述: 4位單片微控制器的小型通用兩用紅外遙控遞質
文件頁數: 55/102頁
文件大小: 461K
代理商: UPD1724X
55
Data Sheet U15002EJ1V0DS
μ
PD17240, 17241, 17242, 17243, 17244, 17245, 17246
REM
(f
C
)
t
H
t
L
1/f
C
(2) Where f
X
= 4 MHz, Rf
X
= f
X
(original oscillation)
Set Value
t
H
(
μ
s)
t
L
(
μ
s)
1/f
C
(
μ
s)
f
C
(kHz)
Duty
NRZHTMM
NRZLTMM
00H
00H
0.25
0.25
0.5
2000
1/2
01H
02H
0.5
0.75
1.25
800
2/5
04H
04H
1.25
1.25
2.5
400
1/2
09H
09H
2.5
2.5
5.0
200
1/2
0FH
10H
4.0
4.25
8.25
121
1/2
0FH
21H
4.0
8.5
12.5
80
1/3
11H
21H
4.5
8.5
13.0
76.9
1/3
11H
22H
4.5
8.75
13.25
75.47
1/3
19H
35H
6.5
13.5
20.0
50
1/3
3FH
3FH
16.0
16.0
32.0
31.25
1/2
7FH
7FH
32.0
32.0
64.0
15.6
1/2
FFH
FFH
64.0
64.0
128.0
7.8
1/2
(3) Where f
X
= 4 MHz, Rf
X
= 2f
X
Set Value
t
H
(
μ
s)
t
L
(
μ
s)
1/f
C
(
μ
s)
f
C
(kHz)
Duty
NRZHTMM
NRZLTMM
00H
00H
0.125
0.125
0.25
4,000
1/2
07H
0BH
1.0
1.5
2.5
400
2/5
13H
13H
2.5
2.5
5.0
200
1/2
27H
27H
5.0
5.0
10
100
1/2
41H
41H
8.25
8.25
16.5
60.6
1/2
41H
85H
8.25
16.75
25
40
1/3
45H
89H
8.75
17.25
26.0
38.5
1/3
45H
8BH
8.75
17.5
26.25
38.10
1/3
69H
D5H
13.25
26.75
40.0
25
1/3
C7H
C7H
25.0
25.0
50.0
20
1/2
FFH
FFH
32.0
32.0
64.0
15.6
1/2
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