CD74AC283 Datasheet, PDF (4/10 Pages) Texas Instruments – 4-Bit Binary Fill Adder With Fast Carry

CD54/74AC283, CD54/74ACT283
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,
An or Bn to C_OUT
C_IN to Sn
C_IN to C_OUT
t_PLH, t_PHL
1.5
-
3.3
6.3
(Note 9)
5
4.5
(Note 10)
-
199
-
-
22.4
6.2
-
16
4.4
-
219
ns
-
24.6
ns
-
17.6
ns
Propagation Delay,
An or Bn to Sn
t_PLH, t_PHL
1.5
-
-
207
-
-
228
ns
3.3
6.6
-
23.2
6.4
-
25.5
ns
5
4.7
-
16.5
4.6
-
18.2
ns
Input Capacitance
C_I
-
Power Dissipation Capacitance
C_PD
-
(Note 11)
-
-
10
-
-
10
pF
-
120
-
-
120
-
pF
ACT TYPES
Propagation Delay,
An or Bn to C_OUT
C_IN to Sn
C_IN to C_OUT
Propagation Delay,
An or Bn to Sn
t_PLH, t_PHL
5
4.5
(Note 10)
t_PLH, t_PHL
5
4.7
-
16
2.7
-
17.6
ns
-
16.5
3.3
-
18.2
ns
Input Capacitance
C_I
-
Power Dissipation Capacitance
C_PD
-
(Note 11)
-
-
10
-
-
10
pF
-
120
-
-
120
-
pF
NOTES:
8. Limits tested 100%.
9. 3.3V Min is at 3.6V, Max is at 3V.
10. 5V Min is at 5.5V, Max is at 4.5V.
11.
CAC_{PD: PisD}u=seVd_Ct_Co₂dfe_i t(eCr_Pm_Din+e
the
C_L)
dynamic
power
consumption
per function.
ACT: P_D = V_CC2 f_i (C_PD + C_L) + V_CC ∆I_CC where f_i = input frequency, C_L = output load capacitance, V_CC = supply voltage.
t_r ≤ 3ns
INPUT
t_f ≤ 3ns
INPUT LEVEL
90%
V_S
10%
GND
INVERTING
OUTPUT
V_S
t_PHL
t_PLH
FIGURE 1. PROPAGATION DELAY TIMES
OUTPUT
DUT
R_L (NOTE)
500Ω
OUTPUT
LOAD
C_L
50pF
NOTE: For AC Series Only: When V_CC = 1.5V, R_L = 1kΩ.
AC
ACT
Input Level
Input Switching Voltage, V_S
Output Switching Voltage, V_S
V_CC
0.5 V_CC
0.5 V_CC
3V
1.5V
0.5 V_CC
FIGURE 2. PROPAGATION DELAY TIMES
4