CD74AC139 Datasheet, PDF (5/7 Pages) Texas Instruments – Dual 2-to-4-Line Decoder/Demultiplexer

CD74AC139, CD74ACT139
Switching Specifications Input t_r, t_f = 3ns, C_L = 50pF (Worst Case)
-40^oC TO 85^oC
-55^oC TO 125^oC
PARAMETER
AC TYPES
SYMBOL
V_CC (V)
MIN
TYP
MAX
MIN
TYP
MAX UNITS
Propagation Delay, A0, A1 to
t_PLH, t_PHL
1.5
-
Outputs
3.3
3.9
(Note 9)
-
119
-
-
13.4
3.7
-
131
ns
-
14.7
ns
5
2.8
(Note 10)
-
9.5
2.6
-
10.5
ns
Propagation Delay,
E to Outputs
t_PLH, t_PHL
1.5
-
-
119
-
-
131
ns
3.1
3.9
-
13.4
3.7
-
14.7
ns
5
2.8
-
9.5
2.6
-
10.5
ns
Input Capacitance
C_I
-
Power Dissipation Capacitance
C_PD
-
(Note 11)
-
-
10
-
-
10
pF
-
83
-
-
83
-
pF
ACT TYPES
Propagation Delay, A0, A1 to
t_PLH, t_PHL
5
3.1
Outputs
(Note 10)
-
10.5
2.9
-
11.5
ns
Propagation Delay,
E to Outputs
t_PLH, t_PHL
5
3.2
-
10.9
3
-
12
ns
Input Capacitance
C_I
-
Power Dissipation Capacitance
C_PD
-
(Note 11)
-
-
10
-
-
10
pF
-
83
-
-
83
-
pF
NOTES:
8. Limits tested at 100%.
9. 3.3V Min at 3.6V, Max at 3V.
10. 5V Min at 5.5V, Max at 4.5V.
11. CAACC_PD:TP:isPDu_D=s=eVdVCt_CCo_C2d_{2fei ft(i}eC(rC_Pm_DPin_D+e+CthCLe)_Ld) y+nVa_Cm_Cic_∆pIo_Cw_Cewr _hceornesufim=pintiopnutpfererqdueecnocdye,rC/d_Lem= uolutitppluetxleora. _{d capacitance, VCC = supply voltage.}
t_r = 3ns
INPUT E
t_PLH
INPUT Y3
t_f = 3ns
90%
V_S
10%
t_PHL
INPUT
LEVEL
GND
V_S
FIGURE 1.
90%
V_S
10%
V_S
3ns
3ns
t_PHL
t_PLH
INPUT
LEVEL
A1
GND
OUTPUT Y3
FIGURE 2.
5