HD74LS123P Renesas Electronics America, HD74LS123P Datasheet - Page 8

• Manufacturer Part Number: HD74LS123P
• Manufacturer: Renesas Electronics America

Specifications of HD74LS123P

• Lead Free Status / RoHS Status: Not Compliant

HD74LS123
Testing Method
Test Circuit
Notes:
Waveform
Note:
Rev.2.00, Feb.18.2005, page 6 of 8
Clear
Q
Q
A
B
Input pulse; t
1. C
2. All diodes are 1S2074(H).
Z
Z
Z
out
out
out
P.G.
P.G.
P.G.
L
= 50Ω
= 50Ω
= 50Ω
1.3V
includes probe and jig capacitance.
TLH
CLR Input
A
B
t
w (in)
40ns
1.3V
1
1
15 ns, t
Input
Input
t
PLH
t
t
THL
PHL
w (in)
40ns
1.3V
6 ns.
1.3V
1.3V
1.3V
Cext
t
CLR
Cext
w (CLR)
t
PHL
t
40ns
PLH
Rext
/Cext
1.3V
Rext
/Cext
1.3V
1.3V
1.3V
V
V
CC
CC
t
w (in)
40ns
1.3V
Q
Q
Output Q
Output Q
t
PLH
t
t
PHL
w (in)
40ns
1.3V
Same as Load Circuit 1.
C
1.3V
L
1.3V
t
w (out)
t
w (out)
R
L
Load circuit 1
1.3V
1.3V
3V
0V
3V
0V
3V
0V
V
V
V
V
OH
OL
OH
OL