MC74ACT646 ON Semiconductor, MC74ACT646 Datasheet - Page 5

• Manufacturer Part Number: MC74ACT646
• Description: OCTAL TRANSCEIVER/REGISTER WITH 3-STATE OUTPUTS (NON-INVERTING)
• Manufacturer: ON Semiconductor

www.DataSheet4U.com
DataSheet
4
U
AC CHARACTERISTICS
t PLH
t PLH
t PHL
t PHL
t PLH
t PLH
t PHL
t PHL
t PLH
t PHL
t PZH
t PZH
t PZL
t PZL
t PHZ
t PHZ
t PLZ
t PLZ
t PZH
t PZH
t PZL
t PZL
t PHZ
t PHZ
t PLZ
t PLZ
*Voltage Range 3.3 V is 3.3 V 0.3 V.
.com
Voltage Range 5.0 V is 5.0 V 0.5 V.
Symbol
Propagation Delay
Clock to Bus
Propagation Delay
Clock to Bus
Propagation Delay
Bus to Bus
Propagation Delay
Bus to Bus
Propagation Delay
SBA or SAB to A n or B n
(w/A n or B n HIGH or LOW)
Propagation Delay
SBA or SAB to A n or B n
(w/A n or B n HIGH or LOW)
Enable Time
G to A n or B n
Enable Time
G to A n or B n
Disable Time
G to A n or B n
Disable Time
G to A n or B n
Enable Time
DIR to A n or B n
Enable Time
DIR to A n or B n
Disable Time
DIR to A n or B n
Disable Time
DIR to A n or B n
(For Figures and Waveforms – See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
Parameter
MC74AC646, MC74ACT646
http://onsemi.com
5
V CC *
(V)
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3 3
3.3
5.0
3 3
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
Min
4.0
2.5
3.0
2.0
2.5
1.5
1.5
1.5
2 0
2.0
1.5
1 5
1.5
1.5
2.5
1.5
2.5
1.5
3.0
2.0
2.0
1.5
2.0
1.5
2.5
1.5
2.5
1.5
1.5
1.5
T A = +25 C
C L = 50 pF
74AC
10.5
Typ
7.5
9.5
6.5
7.5
5.0
7.5
5.0
8 5
8.5
6.0
8 5
8.5
6.0
7.0
5.0
7.5
5.5
8.0
6.5
7.5
6.0
6.5
5.0
7.0
5.0
7.5
5.5
7.5
5.5
Max
16.5
14.5
10.5
12.5
13 5
13.5
13 5
13.5
11.5
12.5
12.5
11.5
11.5
8.0
9.0
8.5
9.0
9.5
7.5
8.0
9.5
9.5
12
12
10
10
10
12
11
12
Min
T A = –40 C
C L = 50 pF
3.0
2.0
2.5
1.5
2.0
1.0
1.5
1.0
1 5
1.5
1.5
1 5
1.5
1.5
2.0
1.5
2.0
1.5
2.5
2.0
2.0
1.5
1.5
1.0
2.0
1.0
1.5
1.5
1.5
1.5
to +85 C
74AC
Max
18.5
11.5
13.5
13.5
15 5
15.5
12.5
13.5
13.5
10.5
12.5
13.5
10.5
9.0
9.5
9.0
8.5
9.0
13
16
15
15
14
10
12
13
10
11
11
11
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Fig.
3–6
3–6
3–6
3–6
3–5
3–5
3–5
3–5
3–6
3–6
3–7
3–7
3–8
3–8
3–7
3–7
3–8
3–8
3–7
3–7
3–8
3–8
3–7
3–7
3–8
3–8
No.