CD54HC4017F Datasheet, PDF (7/12 Pages) Texas Instruments – DECADE COUNTER/DIVIDER WITH TEN DECODED OUTPUTS

CD54HC4017
DECADE COUNTER/DIVIDER
WITH TEN DECODED OUTPUTS
SGDS011 – MAY 1999
PARAMETER MEASUREMENT INFORMATION
Test
From Output ^Point
Under Test
CL
(see Note A)
1 kΩ
VCC
S1
S2
LOAD CIRCUIT
PARAMETER S1
tPZH
ten
tPZL
tdis
tPHZ
tPLZ
tpd or tt
Open
Closed
Open
Closed
Open
S2
Closed
Open
Closed
Open
Open
High-Level
Pulse
Low-Level
Pulse
50% VCC
tw
VCC
50% VCC
0V
VCC
50% VCC
50% VCC
0V
VOLTAGE WAVEFORMS
PULSE DURATIONS
Reference
Input
Data
Input
50%
10%
tsu
90%
tr
50% VCC
th
90%
VCC
0V
VCC
50%
10% _{0 V}
tf
VOLTAGE WAVEFORMS
SETUP AND HOLD AND INPUT RISE AND FALL TIMES
Input
In-Phase
Output
Out-of-
Phase
Output
50% VCC
tPLH
50%
10%
tPHL
90%
90%
tr
50%
10%
tf
50% VCC
tPHL
90%
tPLH
50%
10%
VCC
0V
VOH
50%
10% _VOL
tf
90% ^VOH
VOL
tr
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
Output
Control
tPZL
Output
Waveform 1
(See Note B)
tPZH
Output
Waveform 2
(See Note B)
50% VCC
50% VCC
VCC
0V
≈ VCC
50%
tPLZ
≈ VCC
10% _VOL
50%
tPHZ
90% ^VOH
≈0 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES FOR 3-STATE OUTPUTS
NOTES: A. CL includes probe and test-fixture capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns.
D. The outputs are measured one at a time with one input transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
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