Diodes 74HC595 - Manual (Page 7)

74HC595
Document number: DS35492 Rev. 3 - 2
7 of 11
www.diodes.com
June 2013
© Diodes Incorporated
74HC595
Parameter Measurement Information
R
L
C
L
(see Note A)
From Output
Under Test
V LOAD TEST Vload
t
PLH
/t
PHL Open
t
PLZ
/t
PZL Vcc
t PHZ /t PZH GND
V
CC
Inputs
V
M
C
L
V
I
t
r
/t
f
2.0V V
CC
6ns V
CC
/2 50pF
4.5V V
CC
6ns V
CC
/2 50pF
6.0V V
CC
6ns V
CC
/2 50pF
Voltage Waveform
Pulse Duration and Recovery Time
Voltage Waveform
Set-up and Hold Times
Voltage Waveform
Propagation Delay Times
Inverting and Non Inverting Outputs
Voltage Waveform
Enable and Disable Times
Notes: A. Includes test lead and test apparatus capacitance.
B. Output Waveform 1 depends on the internal Q
N
node being low and behaves in this manner based on OE pin.
Output Waveform 2 depends on the internal Q
N
node being high and behaves in this manner based on OE pin.
C. All pulses are supplied at pulse repetition rate ≤ 10MHz
D. Inputs are measured separately one transition per measurement
E. t
PLH
and t
PHL
are the same as t
PD
Figure 1. Load Circuit and Voltage Waveforms