x9409wv24iz-2.7t2 Intersil Corporation, x9409wv24iz-2.7t2 Datasheet - Page 10

• Manufacturer Part Number: x9409wv24iz-2.7t2
• Description: Quad Digitally Controlled Potentiometers Xdcp?
• Manufacturer: Intersil Corporation

Increment/Decrement Wiper Counter Register (WCR)
Global Transfer Data Register (DR) to Wiper Counter Register (WCR)
Global Transfer Wiper Counter Register (WCR) to Data Register (DR)
R
S
A
R
S
A
R
S
T
A
T
T
T
T
T
SYMBOL TABLE
device type
0 1 0 1
0 1 0 1
0 1 0 1
WAVEFORM
device type
device type
identifier
identifier
identifier
A
3
addresses
A
A
3
3
addresses
addresses
INPUTS
Must be
steady
May change
from Low to
High
May change
from High to
Low
Don’t Care:
Changes
Allowed
N/A
device
A
2
device
device
A
2
A
2
A
1
A
1
A
1
10
A
0
A
0
A
0
S
A
C
K
S
A
C
K
S
A
C
K
OUTPUTS
Will be
steady
Will change
from Low to
High
Will change
from High to
Low
Changing:
State Not
Known
Center Line
is High
Impedance
1 0 0 0
instruction
0 0 1 0 0 0
opcode
0 0 0 1
instruction
instruction
opcode
opcode
R
1
addresses
R
1
R
addresses
0
addresses
DR
WCR
R
0
0 0
DR
P
1
0 0
X9409
P
0
C
S
A
K
O
S
A
C
K
S
P
Guidelines for Calculating Typical Values of Bus
Pull-Up Resistors
C
T
S
A
K
D
I/
O
S
T
P
(sent by master on SDA)
HIGH-VOLTAGE
WRITE CYCLE
increment/decrement
D
I/
.
.
120
100
40
20
80
60
0
.
0
Min.
Resistance
.
BUS CAPACITANCE (pF)
20
R
R
D
Max.
Resistance
I/
MIN
MAX
40
D
I/
=
=
V
I
C
OL MIN
60
CC MAX
O
S
T
P
t
BUS
R
80 100 120
=1.8kΩ
October 12, 2006
FN8192.4