CD54AC74_17 Datasheet, PDF (5/15 Pages) Texas Instruments – DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET

CD54AC74, CD74AC74
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR AND PRESET
SCHS231D – SEPTEMBER 1998 – REVISED DECEMBER 2002
switching characteristics over recommended operating free-air temperature range,
V_CC = 1.5 V, C_L = 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
–55°C to
125°C
MIN MAX
–40°C to
85°C
MIN MAX
fmax
tPLH
tPHL
tPLH
tPHL
CLK
PRE or CLR
Q or Q
Q or Q
9
125
125
132
144
10
114
114
120
131
UNIT
MHz
ns
ns
switching characteristics over recommended operating free-air temperature range,
V_CC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
–55°C to
125°C
MIN MAX
–40°C to
85°C
MIN MAX
fmax
tPLH
tPHL
tPLH
tPHL
CLK
PRE or CLR
Q or Q
Q or Q
79
3.5
14
3.5
14
3.7 14.7
4 16.1
90
3.6 12.7
3.6 12.7
3.8 13.4
4.1 14.6
UNIT
MHz
ns
ns
switching characteristics over recommended operating free-air temperature range,
V_CC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
–55°C to
125°C
MIN MAX
–40°C to
85°C
MIN MAX
fmax
tPLH
tPHL
tPLH
tPHL
CLK
PRE or CLR
Q or Q
Q or Q
110
2.5
10
2.5
10
2.6 10.5
2.9 11.5
125
2.6 9.1
2.6 9.1
2.7 9.5
3 10.4
UNIT
MHz
ns
ns
operating characteristics, T_A = 25°C
PARAMETER
Cpd Power dissipation capacitance
TYP UNIT
55 pF
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