74HC_HCT594_15 Datasheet, PDF (15/26 Pages) NXP Semiconductors – 8-bit shift register with output register

NXP Semiconductors
74HC594; 74HCT594
8-bit shift register with output register
Table 8. Dynamic characteristics type 74HC594 …continued
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF; see Figure 15.
Symbol Parameter Conditions
25 °C
Min Typ
C_PD
power
V_I = GND to V_CC; ^[2] -
84
dissipation V_CC = 5 V;
capacitance f_i = 1 MHz
Max
-
−40 °C to +85 °C
Min
Max
-
-
[1] t_pd is the same as t_PHL and t_PLH.
[2] C_PD is used to determine the dynamic power dissipation (P_D in µW):
P_D = C_PD × V_CC2 × f_i × N + ∑(C_L × V_CC2 × f_o) where:
f_i = input frequency in MHz;
f_o = output frequency in MHz;
C_L = output load capacitance in pF;
V_CC = supply voltage in V;
N = number of inputs switching;
∑(C_L × V_CC2 × f_o) = sum of outputs.
−40 °C to +125 °C Unit
Min
Max
-
-
pF
Table 9. Dynamic characteristics type 74HCT594
GND = 0 V; V_CC = 4.5 V; t_r = t_f = 6 ns; C_L = 50 pF; see Figure 15.
Symbol Parameter Conditions
25 °C
Min Typ
t_pd
propagation SHCP to Q7S; ^[1] -
18
delay
see Figure 9
V_CC = 5.0 V;
C_L = 15 pF
-
15
STCP to Qn; see
Figure 10
-
18
V_CC = 5.0 V;
C_L = 15 pF
-
15
t_PHL
HIGH to
SHR to Q7S; see
LOW
Figure 13
propagation
delay
V_CC = 5.0 V;
C_L = 15 pF
-
17
-
14
STR to Qn; see
Figure 14
-
17
V_CC = 5.0 V;
C_L = 15 pF
-
14
t_THL
HIGH to
see Figure 9
LOW output _{Serial data output Q7S}
transition
time
V_CC = 4.5 V
-
7
Parallel data outputs
V_CC = 4.5 V
-
5
t_TLH
LOW to
see Figure 9
HIGH output _{Serial data output Q7S}
transition
time
V_CC = 4.5 V
-
7
Parallel data outputs
V_CC = 4.5 V
-
5
Max
32
-
32
-
30
-
30
-
15
12
15
12
−40 °C to +85 °C
Min
Max
-
40
-
-
-
40
-
-
-
38
-
-
-
38
-
-
-
19
-
15
-
19
-
15
−40 °C to +125 °C Unit
Min
Max
-
48
ns
-
-
ns
-
48
ns
-
-
ns
-
45
ns
-
-
ns
-
45
ns
-
-
ns
-
22
ns
-
18
ns
-
22
ns
-
18
ns
74HC_HCT594_3
Product data sheet
Rev. 03 — 20 December 2006
© NXP B.V. 2006. All rights reserved.
15 of 26