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SN74F193A Datasheet(PDF) 6 Page - Texas Instruments

Part No. SN74F193A
Description  SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTER WITH DUAL CLOCK AND CLEAR
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN74F193A
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTER
WITH DUAL CLOCK AND CLEAR
SDFS031A – D3693, JANUARY 1991 – REVISED OCTOBER 1993
2–6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
VCC = 5 V,
TA = 25°C
VCC = 4.5 V to 5.5 V,
TA = MIN to MAX†
UNIT
MIN
MAX
MIN
MAX
fclock
Clock frequency
0
85
0
85
MHz
CLR high
4
4
t
Pulse duration
LOAD low
5.5
5.5
ns
tw
Pulse duration
UP or DOWN high
4
4
ns
UP or DOWN low
6
6
Data before LOAD inactive
3.5
3.5
tsu
Setup time
CLR inactive before UP
↑ or DOWN↑
5
5
ns
LOAD inactive before UP
↑ or DOWN↑
7.5
7.5
th
Hold time
Data after LOAD inactive
2.5
2.5
ns
switching characteristics (see Note 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
CL = 50 pF,
RL = 500 Ω,
TA = 25°C
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 Ω,
TA = MIN to MAX†
UNIT
MIN
TYP
MAX
MIN
MAX
fmax
85
100
85
MHz
tPLH
UP or DOWN
CO or BO
2.5
8.5
2.5
9
ns
tPHL
UP or DOWN
CO or BO
3
8
3
9
ns
tPLH
UP or DOWN
Any Q
2.5
8.5
2.5
9
ns
tPHL
UP or DOWN
Any Q
5
12
5
13
ns
tPLH
ABCor D
Any Q
2
7
1.5
8
ns
tPHL
A, B, C, or D
Any Q
6
13.5
5
15
ns
tPLH
LOAD
Any Q
4.5
10
4
11
ns
tPHL
LOAD
Any Q
5.5
12
5
13
ns
tPHL
CLR
Any Q
5
11
5
12
ns
tPLH
CLR
CO
6
12
5.5
13
ns
tPHL
CLR
BO
5
11
5
12
ns
tPLH
LOAD
CO or BO
6
13.5
6
15
ns
tPHL
LOAD
CO or BO
6
12.6
6
13.8
ns
tPLH
ABCor D
CO or BO
5.5
13
5
14
ns
tPHL
A, B, C, or D
CO or BO
4.5
12.5
4.5
13.5
ns
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 2: Load circuits and waveforms are shown in Section 1.




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