Parameter measurement information – Diodes 74AHC595 User Manual
Page 6
74AHC595
Document number: DS35486 Rev. 3 - 2
6 of 10
June 2013
© Diodes Incorporated
74AHC595
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
V
CC
t
PHZ
/t
PZH
GND
Vcc
Inputs
V
M
C
L
V
I
t
r
/t
f
3.3V -3.6V
V
CC
3ns
V
CC
/2
15pF, 50pF
4.5V to 5.5V
V
CC
3ns
V
CC
/2
15pF, 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 ≤ 10 MHz
D. Inputs are measured separately one transition per measurement
E. t
PLH
and t
PHL
are the same as t
PD.
Figure 2. Load Circuit and Voltage Waveforms