74ACT244B STMicroelectronics, 74ACT244B Datasheet - Page 4

• Manufacturer Part Number: 74ACT244B
• Description: IC BUFF/DVR TRI-ST DUAL 20DIP
• Manufacturer: STMicroelectronics
• Series: 74ACTr

Specifications of 74ACT244B

• 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: 4.5 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 20-DIP (0.300", 7.62mm)
• Logic Family: ACT
• Number Of Channels Per Chip: 8
• Polarity: Non-Inverting
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• High Level Output Current: - 24 mA
• Low Level Output Current: 24 mA
• Minimum Operating Temperature: - 55 C
• Number Of Lines (input / Output): 8 / 3
• Output Type: 3-State
• Propagation Delay Time: 9 ns at 5 V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-1331-5

74ACT244
CAPACITIVE CHARACTERISTICS
1) C
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
TEST CIRCUIT
C
R
R
4/9
t
t
t
PLH
PZL
PZH
Symbol
L
L
T
C
= 50pF or equivalent (includes jig and probe capacitance)
= R
= Z
C
PD
C
OUT
, t
, t
, t
PD
IN
OUT
1
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
PLZ
PHL
PHZ
= 500 or equivalent
of pulse generator (typically 50 )
Input Capacitance
Output
Capacitance
Power Dissipation
Capacitance (note
1)
Parameter
V
(V)
5.0
5.0
5.0
CC
Test Condition
TEST
f
IN
= 10MHz
Min.
T
A
Typ.
= 25°C
24
4
8
Max.
CC(opr)
Value
Min.
-40 to 85°C
= C
Max.
PD
x V
CC
SWITCH
-55 to 125°C
Min.
Open
Open
2V
x f
IN
CC
+ I
CC
Max.
/n (per circuit)
Unit
pF
pF
pF