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CD4094BPWR (U2501, U2502)
PIN ASSIGNMENT
STROBE
1
DATA
2
CLOCK
3
Q1
4
Q2
5
Q3
6
Q4
7
V
8
SS
TRUTH TABLE
Parallel Outputs
Output
CL ▲
Strobe
Data
Enable
Q1
QN
0
X
X
OC
OC
0
X
X
OC
OC
1
0
X
NC
NC
1
1
0
0
QN-1
1
1
1
1
QN-1
1
1
1
NC
NC
▲ = Level Change Logic 1 = High
Logic 0 = Low
X = Don't Care
NC = No Change
OC = Open Circuit
* At the positive clock edge, information in the 7th shift register stage is transferred to the 8th register
stage and the QS output.
16
V
DD
OUTPUT
15
ENABLE
14
Q5
13
Q6
12
Q7
11
Q8
10
Q'
S
9
Q
S
Serial Outputs
QS*
Q' S
Q7
NC
NC
Q7
Q7
NC
Q7
NC
Q7
NC
NC
Q7
U2501
Pin
Port
I/O use
Name
1
STROBE
I
I
CE
2
DATA
I
I
DATA
3
CLOCK
I
I
CLK
4
Q1
O
O
LINE2
5
Q2
O
O
REC
6
Q3
O
O
BAL2
7
Q4
O
O
BI-AMP
8
VSS
-
-
GND
9
QS
O
O
QS
10
Q'S
O
O
Q'S
11
Q8
O
O
LINE1
12
Q7
O
O
CD
13
Q6
O
O
BAL1
14
Q5
O
O
PHONO
15
OE
I
I
OE
16
VDD
-
-
VCC
U2502
Pin
Port
I/O use
Name
1
STROBE
I
I
CE
2
DATA
I
I
DATA
3
CLOCK
I
I
CLK
4
Q1
O
O
HQ_MODE
5
Q2
O
O
P-DIRECT
6
Q3
O
O
HP_RELAY_IN
7
Q4
O
O
MC_HIGH
8
VSS
-
-
GND
9
QS
O
O
QS
10
Q'S
O
O
Q'S
11
Q8
O
O
BAL
12
Q7
O
O
UNBAL
13
Q6
O
O
REC_MUTE
14
Q5
O
O
MM
15
OE
I
I
OE
16
VDD
-
-
VCC
34
Port Setting
Note
Act. stby
Exit R
Chip Enable
Serial Data (Direct controll from MPU)
Serial Clock
H
L
PD 10k
LINE2 INPUT Relay ON (ON:H)
H
L
PD 10k
RECORDER INPUT Relay ON (ON:H)
H
L
PD 10k
BALANCED2 INPUT Relay ON (ON:H)
H
L
PD 10k
Bi-Amp Relay Control (H/L = Bi-Amp/Stereo)
-
-
-
GND
Open
To 4094-2
H
L
PD 10k
LINE1 INPUT Relay ON (ON:H)
H
L
PD 10k
CD INPUT Relay ON (ON:H)
H
L
PD 10k
BALANCED1 INPUT Relay ON (ON:H)
H
L
PD 10k
PHONO INPUT Relay ON (ON:H)
Output Enable
-
-
-
3.3V
Port Setting
Note
Act. stby
Exit R
Chip Enable
From 4094-1
Serial Clock
H
L
PD 10k
HQ Mode SW (ON:H)
H
L
PD 10k
Power Amp direct in Relay ON (ON:H)
H
L
PD 10k
HP input Relay Control (H/L=HP ON/OFF)
H
L
PD 10k
PHONO MC Input Impedance SW
-
-
-
GND
Open
Open
H
L
PD 10k
BALANCE INPUTS Relay ON (ON:H)
H
L
PD 10k
UNBALANCE INPUTS Relay ON (ON:H)
H
L
PD 10k
RECORDER OUTPUT Relay ON (ON:H)
H
L
PD 10k
PHONO MM/MC SW (H/L = MM/MC)
Output Enable
-
-
-
3.3V
- Quick Links:
- Schematic Diagrams
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