HS-0508RH, HS-0509RH
Schematic Diagrams
R10
R9
Q1
V+ TTL REFERENCE CIRCUIT
Q4
D3
LEVEL SHIFTER
V+
P
P
P
P
P
P
P
P
P
P
N
R2
OVERVOLTAGE
PROTECTION
V+
D2
ADD R1
N
IN.
200Ω
D1
V-
R3
N
R4
N
N
N
R5
R6
N
R7
R8
N
N
V-
LEVEL
SHIFTED
ADDRESS
TO
DECODE
LEVEL
SHIFTED
ADDRESS
N
TO
DECODE
FIGURE 1. ADDRESS INPUT BUFFER AND LEVEL SHIFTER
+V
P
P
P
P
P
P
P
N
N
N
A0 OR A0 N
A1 OR A1
N
A2 OR A2
N
A3 OR A3
N
ENABLE
DELETE A3 OR A3 INPUT FOR HI-507
DELETE A3 OR A3 INPUT FOR HI-508
DELETE A2 OR A2 INPUT FOR HI-509
V-
FIGURE 2. ADDRESS DECODER
FROM DECODE
N18
V+
N19
IN
P17
N17
OUT
V-
P18
FROM DECODE
FIGURE 3. MULTIPLEX SWITCH
3