bu9768ak ROHM Co. Ltd., bu9768ak Datasheet - Page 11
bu9768ak
Manufacturer Part Number
bu9768ak
Description
Driver Segmented Module With Input Function
Manufacturer
ROHM Co. Ltd.
Datasheet
1.BU9768AK.pdf
(20 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
bu9768akV
Manufacturer:
ROHM/罗姆
Quantity:
20 000
In the Sleep modes, oscillation of the OSC pin stops, but if a button is pressed while the key scan output is on
the HIGH line, oscillation begins and a key scan is carried out. When the key scan has been completed, oscil-
lation stops again.
The output can be switched to match a variety of applications, depending on the combination of the four bits.
Note: When the power supply is turned on, the following settings are in effect for control codes. These initial
When the power supply is turned on:
(DP, S
• K
• P
• SC: Control switching the LCD display on and off
Standard ICs
K
Don't Care
0
0
0
0
0
0
0
0
1
1
1
1
Switching the LCD display on and off can be done regardless of the input data.
1: Display off
0: Display on (when displayed, displays can be obtained in accordance with the input data.)
0
Control code
S
0
0
0
0
1
1
, K
, P
Control code
0
settings for control codes should be changed to match the mode being used.
K
0
0
0
0
0
1
1
1
1
1
1
, S
: Control that switches between key scan and segment output
: Control that switches between segment and expansion pin output
1
1
, K
P
S
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
, K
P
0
1
0
1
0
1
0
1
0
1
0
1
1
1
, P
Normal
Mode
Sleep
Sleep
Sleep
0
44pin
, P
KO
KO
KO
KO
S
S
S
S
S
S
S
S
Key scan /
segment
41
41
41
41
41
41
41
41
1
1
1
1
1
, SC) = (0, 0, 0, 1, 1, 0, 0, 0)
Fixed at LOW
Fixed at LOW
Fixed at LOW
Segment /
common
45pin
Output
output
KO
KO
KO
KO
KO
KO
KO
KO
S
S
S
S
42
42
42
42
2
2
2
2
2
2
2
2
1pin
EP
EP
EP
EP
EP
EP
EP
EP
EP
S
S
S
Oscillating
Stopped
Stopped
Stopped
1
1
1
1
1
1
1
1
1
1
1
1
OSC
pin
expansion pin
2pin
EP
EP
EP
EP
EP
EP
EP
EP
EP
Segment /
S
S
S
2
2
2
2
2
2
2
2
2
2
2
2
KO
H
H
L
L
1
3pin
EP
EP
EP
EP
EP
EP
KO
S
S
S
S
S
S
H
H
L
L
3
3
3
3
3
3
3
3
3
3
3
3
Key scan output
2
KO
H
H
L
L
4pin
EP
EP
EP
S
S
S
S
S
S
S
S
S
3
4
4
4
4
4
4
4
4
4
4
4
4
KO
H
H
L
L
4
of display
segments
Max. no.
KO
H
H
H
L
120
114
111
108
123
117
114
111
126
120
117
114
5
KO
H
H
H
H
6
BU9768AK / BU9768AKV
Max.
input
key
30
30
30
30
25
25
25
25
20
20
20
20
11