hd74ls669 Renesas Electronics Corporation., hd74ls669 Datasheet - Page 5

• Manufacturer Part Number: hd74ls669
• Description: Synchronous Up / Down 4-bit Binary Counter
• Manufacturer: Renesas Electronics Corporation.

HD74LS669
Testing Method
Test Circuit
Notes:
Rev.2.00, Feb.18.2005, page 5 of 8
1. C
2. All diodes are 1S2074(H).
Z
Z
out
out
L
includes probe and jig capacitance.
P.G.
P.G.
= 50Ω
= 50Ω
Input
Input
4.5V
U/D
A
B
C
D
E·P
Load
E·T
CK
V
CC
RCO
Q
Q
Q
Q
A
B
C
D
Output
Output
Output
Output
Output
C
Same as Load Circuit 1.
Same as Load Circuit 1.
Same as Load Circuit 1.
Same as Load Circuit 1.
L
R
L
Load circuit 1