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74AC11590_09 Datasheet, PDF (5/10 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
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
MIN TYP MAX
3V
2.9
IOH = − 50 µA
4.5 V
4.4
5.5 V
5.4
VOH
IOH = − 4 mA
IOL = − 24 mA
IOH = − 75 mA†
3 V 2.58
4.5 V 3.94
5.5 V 4.94
5.5 V
3V
0.1
IOL = 50 µA
4.5 V
0.1
5.5 V
0.1
VOL
IOL = 12 mA
3V
0.36
IOL = 24 mA
4.5 V
0.36
5.5 V
0.36
IOL = 75 mA†
5.5 V
II
VI = VCC or GND
5.5 V
± 0.1
IOZ
VO = VCC or GND
5.5 V
± 0.5
ICC
VI = VCC or GND,
IO = 0
5.5 V
8
Ci
VI = VCC or GND
5V
3
Co
VO = VCC or GND
5V
11
† Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
MIN MAX UNIT
2.9
4.4
5.4
2.48
V
3.8
4.8
3.85
0.1
0.1
0.1
0.44 V
0.44
0.44
1.65
±1 µA
± 5 µA
80 µA
pF
pF
timing requirements over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V
(unless otherwise noted) (see Figure 1)
TA = 25°C
MIN MAX
MIN MAX UNIT
fclock
tw
Clock frequency, CCK or RCK
Pulse duration
CCK or RCK high or low
CCLR low
0
50
0
50 MHz
10
10
ns
7.4
7.4
CCKEN low before CCK↑
5.2
5.2
tsu
Setup time
CCLR high before CCK↑
3.4
CCK↑ before RCK↑‡
8.1
3.4
ns
8.1
th
Hold time
CCKEN low after CCK↑
0
0
ns
‡ This setup time ensures that the register will see stable data from the counter outputs. The clocks may be tied together, in which case the register
will be one clock pulse behind the counter.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
• POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
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