74LVC244ATTR STMicroelectronics, 74LVC244ATTR Datasheet - Page 4

• Manufacturer Part Number: 74LVC244ATTR
• Description: IC BUFF/DVR TRI-ST DUAL 20TSSOP
• Manufacturer: STMicroelectronics
• Series: 74LVCr

Specifications of 74LVC244ATTR

• Logic Type: Buffer/Line Driver, Non-Inverting
• Number Of Elements: 2
• Number Of Bits Per Element: 4
• Current - Output High, Low: 24mA, 24mA
• Voltage - Supply: 1.65 V ~ 3.6 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2919-2

74LVC244A
Table 7: Dynamic Switching Characteristics
1) Number of output defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is
measured in the LOW state.
Table 8: AC Electrical Characteristics
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW (t
2) Parameter guaranteed by design
Table 9: Capacitive Characteristics
1) C
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
4/12
t
t
t
Symbol
Symbol
Symbol
PLH
PZL
PLZ
t
t
PD
V
V
OSLH
OSHL
C
C
OLP
OLV
PD
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
IN
t
t
t
PZH
PHZ
PHL
Dynamic Low Level Quiet
Output (note 1)
Propagation Delay
Time
Output Enable Time 1.65 to 1.95
Output Disable Time 1.65 to 1.95
Output To Output
Skew Time (note1,
2)
Input Capacitance
Power Dissipation Capacitance
(note 1)
Parameter
Parameter
Parameter
1.65 to 1.95
2.3 to 2.7
3.0 to 3.6
2.3 to 2.7
3.0 to 3.6
2.3 to 2.7
3.0 to 3.6
2.7 to 3.6
V
(V)
2.7
2.7
2.7
CC
OSLH
Test Condition
= | t
PLHm
(pF)
V
V
C
30
50
(V)
3.3
30
30
50
50
30
30
50
50
30
50
(V)
1.8
2.5
3.3
CC
CC
L
- t
PLHn
Test Condition
Test Condition
1000
1000
1000
500
500
500
500
500
500
500
500
500
( )
R
|, t
L
V
OSHL
IL
= 0V, V
t
f
s
(ns)
IN
C
2.0
2.0
2.5
2.5
2.0
2.0
2.5
2.5
2.0
2.0
2.5
2.5
= | t
= t
L
= 10MHz
= 50pF
r
PHLm
IH
Min.
= 3.3V
1.5
- t
-40 to 85 °C
1
1
1
2
2
PHLn
|
CC(opr)
Max.
9.0
7.9
6.9
5.9
9.6
8.6
7.6
9.0
7.8
6.8
6.5
11
Min.
Min.
1
Value
= C
T
T
PD
A
A
Value
Min.
Value
-55 to 125 °C
= 25 °C
Typ.
= 25 °C
Typ.
x V
-0.8
0.8
28
30
34
4
CC
x f
IN
Max.
Max.
10.5
14.3
12.5
10.3
10.1
Max.
11.7
+ I
8.3
7.1
9.1
8.2
7.8
12
1
CC
/n (per circuit)
Unit
Unit
Unit
pF
pF
ns
ns
ns
ns
V