74HC4040; 74HCT4040
Philips Semiconductors
12-stage binary ripple counter
Table 10: Dynamic characteristics for type 74HCT4040
GND = 0 V; tr = tf = 6 ns. For test circuit see Figure 9.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Tamb = 25 °C
tPHL, tPLH
propagation delay CP to Q0
see Figure 8
VCC = 4.5 V; CL = 50 pF
VCC = 5.0 V; CL = 15 pF
see Figure 8
-
-
19
16
40
-
ns
ns
propagation delay Qn to Qn+1
VCC = 4.5 V; CL = 50 pF
VCC = 5.0 V; CL = 15 pF
-
-
-
10
8
20
-
ns
ns
ns
tPHL
propagation delay MR to Qn
output transition time
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
23
45
tTHL, tTLH
tW
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
7
7
6
2
15
-
ns
ns
ns
ns
clock pulse width HIGH or LOW VCC = 4.5 V; CL = 50 pF;
see Figure 8;
16
16
10
master reset pulse width; HIGH
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
trec
recovery time MR to CP
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
fmax
maximum operating frequency
see Figure 8
VCC = 4.5 V; CL = 50 pF
VCC = 5.0 V; CL = 15 pF
30
-
72
79
20
-
-
-
MHz
MHz
pF
[1]
CPD
power dissipation capacitance
per package
-
Tamb = −40 °C to +85 °C
tPHL, tPLH
propagation delay CP to Q0
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
-
-
-
-
-
-
-
-
50
25
56
19
-
ns
propagation delay Qn to Qn+1
propagation delay MR to Qn
output transition time
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
ns
tPHL
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
ns
tTHL, tTLH
tW
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
ns
clock pulse width HIGH or LOW VCC = 4.5 V; CL = 50 pF;
see Figure 8;
20
20
13
24
ns
master reset pulse width; HIGH
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
ns
trec
recovery time MR to CP
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
ns
fmax
maximum operating frequency
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
MHz
Tamb = −40 °C to +125 °C
tPHL, tPLH
propagation delay CP to Q0
VCC = 4.5 V; CL = 50 pF;
see Figure 8;
-
-
-
-
60
30
ns
ns
propagation delay Qn to Qn+1
VCC = 4.5 V; CL = 50 pF;
see Figure 8
74HC_HCT4040_3
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 03 — 14 September 2005
14 of 24
NXP [ NXP ]
