SN74F169 Datasheet, PDF (7/9 Pages) Texas Instruments – SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTER

SN74F169
SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTER
SDFS089 – MARCH 1987 – REVISED OCTOBER 1993
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
fclock
tw
Clock frequency
Pulse duration
tsu
Setup time
th
Hold time
CLK high or low
Data before CLK↑
LOAD before CLK↑
ENP and ENT before CLK↑
U/D before CLK↑
Data after CLK↑
LOAD after CLK↑
ENP and ENT after CLK↑
U/D after CLK↑
High or low
High or low
High or low
High
Low
High or low
High or low
High or low
High or low
VCC = 5 V,
TA = 25°C
MIN MAX
0 100
5
4
8
5
11
7
3
0
0
0
MIN MAX UNIT
0
90 MHz
5.5
ns
4.5
9
6
ns
12.5
8
3.5
0
ns
0
0
switching characteristics (see Note 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
CL = 50 pF,
RL = 500 Ω,
TA = 25°C
MIN TYP MAX
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 Ω,
TA = MIN to MAX†
MIN
MAX
fmax
100 115
90
tPLH
CLK
tPHL
2.2 6.1 8.5
2.2
9.5
Q
3.2 8.6 11.5
3.2
13
tPLH
CLK
tPHL
RCO
4.7 11.6 15.5
4.7
17
3.2 8.1
11
3.2
12.5
tPLH
tPHL
ENT
RCO
1.7 4.1
6
1.7
7
1.7 5.6
8
1.7
9
tPLH
U/D
tPHL
RCO
2.7 8.1
11
2.7
12.5
3.2 7.6 10.5
3.2
12
† _{For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.}
NOTE 3: Load circuits and waveforms are shown in Section 1.
UNIT
MHz
ns
ns
ns
ns
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