BU2114F Rohm, BU2114F Datasheet - Page 3

• Manufacturer Part Number: BU2114F
• Description: 8-bit shift register and latch driver
• Manufacturer: Rohm

•
Note 1) O1 to O8 are open drain output, and when the shift register output is "H", the output level goes "L".
Standard ICs
Pin No.
Pin descriptions
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
Symbol
LATCH
SOUT
GND
GND
GND
RST
SIN
V
CK
EN
O8
O7
O6
O5
O4
O3
O2
O1
DD
I / O
—
—
—
—
O
O
O
O
O
O
O
O
O
I
I
I
I
I
Serial data input pin
Shift clock for shift register
Setting this pin to "L" holds the latch output. While it is
"H", latch output changes simultaneously when the
shift register output changes.
This is the output for the final-stage shift register.
This is the Enable pin for O1 to O8. When this pin is
"L", the latch output appears as is.
When the output is "H", however, output QN is "L",
and when the latch output is "L", Qn becomes High-
Z
Resets the shift register and latch.
0V power supply
0V power supply
0V power supply
Latch output for 8th stage of shift register
Latch output for 7th stage of shift register
Latch output for 6th stage of shift register
Latch output for 5th stage of shift register
Latch output for 4th stage of shift register
Latch output for 3rd stage of shift register
Latch output for 2nd stage of shift register
Latch output for 1st stage of shift register
+ V
DD
power supply
Function
BU2114 / BU2114F
3