74AC244TTR STMicroelectronics, 74AC244TTR Datasheet - Page 4

• Manufacturer Part Number: 74AC244TTR
• Description: IC BUFF/DVR TRI-ST DUAL 20TSSOP
• Manufacturer: STMicroelectronics
• Series: 74ACr

Specifications of 74AC244TTR

• 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: 2 V ~ 6 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Logic Device Type: Buffer, Non Inverting
• Supply Voltage Range: 2V To 6V
• Logic Case Style: TSSOP
• No. Of Pins: 20
• Operating Temperature Range: -55°C To +125°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2913-2

74AC244
AC ELECTRICAL CHARACTERISTICS (C
(*) Voltage range is 3.3V
(**) Voltage range is 5.0V
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
t
t
t
PLH
PZL
PZH
Symbol
Symbol
L
L
T
PLH
PZL
PLZ
C
= 50pF or equivalent (includes jig and probe capacitance)
= R
= Z
C
PD
C
OUT
, t
, t
, t
PD
IN
t
t
OUT
t
1
PZH
PHZ
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
PHL
PLZ
PHL
PHZ
= 500 or equivalent
of pulse generator (typically 50 )
Propagation Delay
Time
Output Enable
Time
Output Disable
Time
Input Capacitance
Output
Capacitance
Power Dissipation
Capacitance (note
1)
Parameter
Parameter
0.3V
0.5V
5.0
5.0
5.0
3.3
3.3
3.3
V
V
(V)
(V)
5.0
5.0
5.0
CC
CC
(**)
(**)
(**)
(*)
(*)
(*)
Test Condition
Test Condition
TEST
f
IN
= 10MHz
L
= 50 pF, R
Min.
Min.
1.5
1.5
1.5
1.5
1.5
1.5
L
= 500
T
T
A
A
Typ.
Typ.
= 25°C
= 25°C
5.2
3.8
6.1
4.2
6.8
5.4
21
4
8
, Input t
Max.
Max.
10.5
10.5
9.0
7.0
8.0
9.0
CC(opr)
Value
Value
r
Min.
Min.
-40 to 85°C
-40 to 85°C
1.5
1.5
1.5
1.5
1.5
1.5
= t
f
= C
= 3ns)
Max.
Max.
10.0
11.0
11.5
PD
7.5
8.5
9.5
x V
CC
SWITCH
-55 to 125°C
-55 to 125°C
Min.
Min.
Open
Open
2V
1.5
1.5
1.5
1.5
1.5
1.5
x f
IN
CC
+ I
CC
Max.
Max.
12.5
13.0
10.5
13.0
11.0
9.5
/8 (per circuit)
Unit
Unit
pF
pF
pF
ns
ns
ns