MC74ACT646 ON Semiconductor, MC74ACT646 Datasheet - Page 7

• 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 PLH
t PHL
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 5.0 V is 5.0 V 0.5 V.
.com
Symbol
Propagation Delay
Pro agation Delay
Clock to Bus
Propagation Delay
Pro agation Delay
Clock to Bus
Propagation Delay
Pro agation Delay
Bus to Bus
Propagation Delay
Pro agation Delay
Bus to Bus
Propagation Delay
SBA or SAB to A n or B n
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
SBA or SAB to A n or B n
(w/A n or B n HIGH or LOW)
Enable Time
Enable Time
G to A n or B n
Enable Time
Enable Time
G to A n or B n
Disable Time
Disable Time
G to A n or B n
Disable Time
Disable Time
G to A n or B n
Enable Time
Enable Time
DIR to A n or B n
Enable Time
Enable Time
DIR to A n or B n
Disable Time
Disable Time
DIR to A n or B n
Disable Time
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
7
V CC *
(V)
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
5 0
5.0
Min
3 5
3.5
4 0
4.0
3 0
3.0
2 5
2.5
3 0
3.0
3 0
3.0
2 0
2.0
3 5
3.5
5 0
5.0
3 5
3.5
2 0
2.0
3 5
3.5
5 0
5.0
3 5
3.5
T A = +25 C
C L = 50 pF
74ACT
12 0
12.0
12 0
12.0
10 5
10.5
10 0
10.0
Typ
8 5
8.5
8 5
8.5
9 5
9.5
9 5
9.5
9 0
9.0
9 0
9.0
6 5
6.5
6 5
6.5
8 5
8.5
8 5
8.5
Max
14 5
14.5
14 5
14.5
11 0
11.0
11 0
11.0
12 0
12.0
12 0
12.0
11 0
11.0
11 0
11.0
13 0
13.0
12 5
12.5
12 5
12.5
12 5
12.5
12 5
12.5
12 5
12.5
Min
T A = –40 C
C L = 50 pF
3 0
3.0
3 5
3.5
2 5
2.5
2 0
2.0
2 5
2.5
2 5
2.5
1 5
1.5
3 0
3.0
4 5
4.5
3 0
3.0
1 5
1.5
3 0
3.0
4 5
4.5
3 0
3.0
to +85 C
74ACT
Max
16 0
16.0
16 0
16.0
12 0
12.0
12 0
12.0
13 0
13.0
13 0
13.0
12 0
12.0
12 0
12.0
14 5
14.5
14 0
14.0
13 5
13.5
13 5
13.5
13 5
13.5
13 5
13.5
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
ns
ns
Fig.
3–6
3–6
3–6
3–6
3–5
3–5
3–5
3–5
3–6
3–6
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.