Service manual

SERVICE MANUAL
Fig. 22 Pinning Diagram
HEF4053P(N): 16-lead DIL ; plastic
(SOT38-1)
HEF4053D(F):16-lead DIL; ceramic
(cerdip)
(SOT74)
HEF4053T(D);16-lead S0; plastic
(SOT109-1)
(): Package Designator North America
Table 8 Pinning
Y
0A
to Y
0C
Independent inputs/outputs
Y
1A
to Y
1C
Independent inputs/outputs
S
A
to Sc Select inputs
E Enable input (active LOW)
Z
A
to Z
C
Common inputs/outputs
Table 9 Function Table
Inputs Channel
E Sn On
L L Y
0
n-Zn
L H Y
1
n-Zn
H X none
Notes
H=HIGH state (the more positive voltage)
L=LOW state (the less positive voltage)
X=STATE is immaterial
Fig. 23 Schematic Diagram (One Switch)
Ratings
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage (with reference to V
DD
) V
EE
-18 to + 0,5 V
Note
To avoid drawing V
DD
current out of terminal Z, when switch current flows into terminals Y, the
voltage drop across the bidirecctional switch must not exceed 0,4 V. If the switch current flows into
terminal Z, no V
DD
current will flow out of terminals Y, in this case there is no limit for the voltage
drop across the switch, but the voltages at Y and Z may not exceed V
DD
or V
EE
.
3. Refer to Table 20 about Functions and Service Data of the IC’s Pins.
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