MAX6951EEE データシートの表示（PDF） - Maxim Integrated
部品番号
コンポーネント説明
メーカー
MAX6951EEE Datasheet PDF : 19 Pages
| |||
Serially Interfaced, +2.7V to +5.5V,
5- and 8-Digit LED Display Drivers
Table 14. Decode-Mode Register Examples
DECODE CODE
No decode for digits 7–0
ADDRESS
REGISTER DATA
HEX
CODE (HEX)
D7
D6
D5
D4
D3
D2
D1
D0 CODE
0x01
0
0
0
0
0
0
0
0
0x00
Hexadecimal decode for digit 0,
no decode for digits 7–1
0x01
0
0
0
0
0
0
0
1
0x01
Hexadecimal decode for digits
2–0, no decode for digits 7–3
0x01
0
0
0
0
0
1
1
1
0x07
Hexadecimal decode for digits
7–0
0x01
1
1
1
1
1
1
1
1
0xFF
Table 15. Hexadecimal Font
7-SEGMENT
REGISTER DATA
ON SEGMENTS = 1
CHARACTER D7* D6–D4 D3
D2 D1 D0 dp*
a
b
c
d
e
f
g
0
X
0
0
0
0
1
1
1
1
1
1
0
1
X
0
0
0
1
0
1
1
0
0
0
0
2
X
0
0
1
0
1
1
0
1
1
0
1
3
X
0
0
1
1
1
1
1
1
0
0
1
4
X
0
1
0
0
0
1
1
0
0
1
1
5
X
0
1
0
1
1
0
1
1
0
1
1
6
X
0
1
1
0
1
0
1
1
1
1
1
7
X
0
1
1
1
1
1
1
0
0
0
0
8
X
1
0
0
0
1
1
1
1
1
1
1
9
X
1
0
0
1
1
1
1
1
0
1
1
A
X
1
0
1
0
1
1
1
0
1
1
1
B
X
1
0
1
1
0
0
1
1
1
1
1
C
X
1
1
0
0
1
0
0
1
1
1
0
D
X
1
1
0
1
0
1
1
1
1
1
1
E
X
1
1
1
0
1
0
0
1
1
1
1
F
X
1
1
1
1
1
0
0
0
1
1
1
The decimal point segment is lit when bit D7 = 1.
sequence is also reset, which might give rise to a one-
time display flicker when the register is written.
Selecting External Components RSET
and CSET to Set Oscillator Frequency
and Segment Current
The RC oscillator uses an external resistor RSET and an
external capacitor CSET to set the oscillator frequency,
fOSC. The allowed range of fOSC is 1MHz to 8MHz.
RSET also sets the peak segment current. The recom-
mended values of RSET and CSET set the oscillator to
4MHz, which makes the blink frequencies 0.5Hz and
1Hz. The recommended value of RSET also sets the
peak current to 40mA, which makes the segment cur-
rent adjustable from 2.5mA to 37.5mA in 2.5mA steps.
ISEG = KI / RSET mA
fOSC = KF / (RSET ✕ CSET + CSTRAY) MHz
Where:
KI = 2240
14 ______________________________________________________________________________________
Share Link: 