SN74LS221NG ON Semiconductor, SN74LS221NG Datasheet - Page 5

• Manufacturer Part Number: SN74LS221NG
• Manufacturer: ON Semiconductor

Specifications of SN74LS221NG

• Logic Family: LS
• High Level Output Current: -400uA
• Low Level Output Current: 8mA
• Quiescent Current: 11uA
• Number Of Elements: 2
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (typ): 5V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Technology: Bipolar
• Abs. Propagation Delay Time: 80ns
• Operating Supply Voltage (min): 4.75V
• Lead Free Status / RoHS Status: Compliant

AC CHARACTERISTICS
AC SETUP REQUIREMENTS
t
t
t
t
t
dv/dt
t
t
R
C
PLH
PHL
PHL
PLH
W(out)
W
s
Symbol
ext
ext
Symbol
Rate of Rise or Fall of Input Pulse
Input Pulse Width
Clear-Inactive-State Setup Time
External Timing Resistance
External Timing Capacitance
Output Duty Cycle
(Input)
A or B
From
Clear
Clear
A
B
A
B
(V
CC
(V
= 5.0 V, T
CC
(Output)
= 5.0 V, T
Q or Q
To
Q
Q
Q
Q
Q
Q
Parameter
A
= 25°C)
A
= 25°C)
Min
600
6.0
70
20
http://onsemi.com
Limits
Typ
120
670
6.9
45
35
50
40
35
44
47
Schmitt, B
Logic Input, A
A or B, t
Clear, t
RT = 2.0 kΩ
R
T
= MAX R
5
Max
150
750
7.5
70
55
80
65
55
65
70
W
W(in)
(clear)
ext
Unit
ms
ns
ns
ns
ns
ns
See Figure 1
C
Min
1.0
1.0
1.4
40
40
15
0
L
= 15 pF,
Limits
Typ
Test Conditions
C
C
C
C
C
ext
ext
ext
ext
ext
= 80 pF, R
= 80 pF, R
= 0, R
= 100 pF, R
= 1.0 μF, R
1000
Max
100
50
90
ext
= 2.0 kΩ
ext
ext
ext
ext
= 2.0 Ω
= 2.0 Ω
= 10 kΩ
= 10 kΩ
V/μs
Unit
V/s
kΩ
μF
ns
ns
%