MC74AC259 Datasheet, PDF (6/9 Pages) ON Semiconductor – 8−Bit Addressable Latch

MC74AC259 MC74ACT259
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74AC
74AC
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPHL
Propagation Delay
Dn to Qn
Propagation Delay
Dn to Qn
Propagation Delay
E to Qn
Propagation Delay
E to Qn
Propagation Delay
Address to Qn
Propagation Delay
Address to Qn
Propagation Delay
MR to Q
3.3 2.0 9.0 14.5 1.5 17.0
ns
3-5
5.0 2.0 6.5 10.0 1.5 11.5
3.3 2.0 9.0 13.5 1.5 16.0
ns
3-5
5.0 2.0 6.0 9.5 1.5 11.0
3.3 2.0 10.5 15.0 1.5 17.5
ns
3-6
5.0 2.0 7.0 10.5 1.5 12.5
3.3 2.0 8.0 12.5 1.5 15.0
ns
3-6
5.0 2.0 7.5 9.0 1.5 11.0
3.3 2.0 12.0 19.0 1.5 22.5
ns
3-6
5.0 2.0 8.0 13.0 1.5 15.5
3.3 2.0 10.0 16.0 1.5 19.0
ns
3-6
5.0 2.0 7.0 11.0 1.5 13.0
3.3 2.0 8.0 12.0 1.5 13.5
ns
3-7
5.0 2.0 6.0 9.0 1.5 10.0
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
AC OPERATING REQUIREMENTS
Symbol
Parameter
ts
Setup Time, HIGH or LOW
Dn to E
th
Hold Time, HIGH or LOW
Dn to E
ts
Setup Time
Address to E
th
Hold Time
Address to E
tw
Minimum Pulse
Width MR
tw
Minimum Pulse
Width E
* Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
74AC
74AC
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
3.3
3.5
4.5
ns
3-9
5.0
2.5
3.5
3.3
2.5
2.5
ns
3-9
5.0
2.0
2.0
3.3
7.0
9.0
ns
3-6
5.0
4.0
6.0
3.3
2.0
2.0
ns
3-6
5.0
2.0
2.0
3.3
6.0
6.5
ns
3-6
5.0
5.5
6.0
3.3
6.5
7.0
ns
3-6
5.0
5.5
6.0
FACT DATA
5-6