74AC11590_09 Datasheet, PDF (7/10 Pages) Texas Instruments – 8-BIT BINARY COUNTER WITH REGISTERED 3-STATE OUTPUTS

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74AC11590
8ĆBIT BINARY COUNTER
WITH REGISTERED 3ĆSTATE OUTPUTS
SCAS194 − D3988, MARCH 1992 − REVISED APRIL 1993
tPLH
tPHL
CCKEN
RCO
3 6.9
9
3 10.4
ns
2.9
7 9.2 2.9 10.4
operating characteristics, V_CC = 5 V, T_A = 25°C
PARAMETER
Cpd
Power dissipation capacitance
Outputs enabled
Outputs disabled
TEST CONDITIONS
CL = 50 pF, f = 1 MHz
TYP UNIT
66
pF
43
From Output
Under Test
CL = 50 pF
(see Note A)
PARAMETER MEASUREMENT INFORMATION
500 Ω
500 Ω
2 × VCC
S1
Open
GND
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
2 × VCC
GND
LOAD CIRCUIT
Input
tw
50%
50%
VOLTAGE WAVEFORMS
VCC
0V
Timing Input
(see Note B)
tsu
Data Input
50%
th
50%
50%
VOLTAGE WAVEFORMS
VCC
0V
VCC
0V
Input
(see Note B)
50%
50%
VCC
0V
tPLH
In-Phase
Output
tPHL
Out-of-Phase
Output
50% VCC
50% VCC
tPHL
VOH
50% VCC
VOL
tPLH
VOH
50% VCC
VOL
VOLTAGE WAVEFORMS
Output
Control
(low-level
enabling)
tPZL
Output
Waveform 1
S1 at 2 × VCC
(see Note C)
Output
Waveform 2
S1 at GND
(see Note C)
tPZH
50%
50%
tPLZ
50% VCC
tPHZ
20% VCC
50% VCC
80% VCC
VOLTAGE WAVEFORMS
VCC
0V
[ VCC
VOL
VOH
[0V
NOTES: A. CL includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr = 3 ns, tf = 3 ns.
C. 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.
D. The outputs are measured one at a time with one input transition per measurement.
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