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74ABT244
Absolute Maximum Ratings(Note 1) Recommended Operating
Conditions
Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Note 3: For 8 bits toggling, I
CCD
< 0.8 mA/MHz.
Note 4: Guaranteed, but not tested.
Storage Temperature −65°C to +150°C
Ambient Temperature under Bias −55°C to +125°C
Junction Temperature under Bias −55°C to +150°C
V
CC
Pin Potential to Ground Pin −0.5V to +7.0V
Input Voltage (Note 2) −0.5V to +7.0V
Input Current (Note 2) −30 mA to +5.0 mA
Voltage Applied to Any Output
in the Disabled or
Power-Off State −0.5V to 5.5V
in the HIGH State −0.5V to V
CC
Current Applied to Output
in LOW State (Max) twice the rated I
OL
(mA)
DC Latchup Source Current −500 mA
Over Voltage Latchup (I/O) 10V
Free Air Ambient Temperature −40°C to +85°C
Supply Voltage +4.5V to +5.5V
Minimum Input Edge Rate (∆V/∆t)
Data Input 50 mV/ns
Enable Input 20 mV/ns
Symbol Parameter Min Typ Max Units
V
CC
Conditions
V
IH
Input HIGH Voltage 2.0 V Recognized HIGH Signal
V
IL
Input LOW Voltage 0.8 V Recognized LOW Signal
V
CD
Input Clamp Diode Voltage −1.2 V Min I
IN
= −18 mA
V
OH
Output HIGH Voltage 2.5 V Min I
OH
= −3 mA
2.0 V Min I
OH
= −32 mA
V
OL
Output LOW Voltage 0.55 I
OL
= 64 mA
I
IH
Input HIGH Current 1 µAMaxV
IN
= 2.7V (Note 4)
1V
IN
= V
CC
I
BVI
Input HIGH Current Breakdown Test 7 µAMaxV
IN
= 7.0V
I
IL
Input LOW Current −1
µAMax
V
IN
= 0.5V (Note 4)
−1V
IN
= 0.0V
V
ID
Input Leakage Test 4.75 V 0.0 I
ID
= 1.9 µA
All Other Pins Grounded
I
OZH
Output Leakage Current 10 µA0 − 5.5V
V
OUT
= 2.7V; OE
n
= 2.0V
I
OZL
Output Leakage Current −10 µA0 − 5.5V
V
OUT
= 0.5V; OE
n
= 2.0V
I
OS
Output Short-Circuit Current −100 −275 mA Max V
OUT
= 0.0V
I
CEX
Output High Leakage Current 50 µAMaxV
OUT
= V
CC
I
ZZ
Bus Drainage Test 100 µA0.0V
OUT
= 5.5V; All Others GND
I
CCH
Power Supply Current 50 µA Max All Outputs HIGH
I
CCL
Power Supply Current 30 mA Max All Outputs LOW
I
CCZ
Power Supply Current
50 µAMax
OE
n
= V
CC
,
All Others at V
CC
or Ground
I
CCT
Additional I
CC
/Input Outputs Enabled 2.5 mA
Max
V
I
= V
CC
− 2.1V
Outputs 3-STATE 2.5 mA Enable Input V
I
= V
CC
− 2.1V
Outputs 3-STATE 50 µA Data Input V
I
= V
CC
− 2.1V
All Others at V
CC
or Ground
I
CCD
Dynamic I
CC
No Load mA/
Max
Outputs OPEN
(Note 4) 0.1
MHz
OE
n
= GND, (Note 3)
One Bit Toggling, 50% Duty Cycle
