74f244b NXP Semiconductors, 74f244b Datasheet - Page 5

• Manufacturer Part Number: 74f244b
• Description: Octal Buffers 3-state
• Manufacturer: NXP Semiconductors

1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V
3. Not more than one output should be shorted at a time. For testing I
Philips Semiconductors
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
NOTES:
1994 Dec 5
SYMBOL
SYMBOL
V
V
V
I
I
I
I
I
I
I
I
IH
IL
OZH
OZL
OS
CC
Octal buffers (3-State)
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, I
OH
OL
IK
High-level output voltage
Low-level output voltage
Input clamp voltage
Input current at maximum input voltage
High-level input current
Low-level input current
Off-state output current,
high-level voltage applied
Off-state output current,
low-level voltage applied
Short-circuit output current
Supply current (total)
CC
PARAMETER
PARAMETER
= 5V, T
OS
tests should be performed last.
amb
3
74F244 OEa, OEb
74F244 Ian, Ibn
74F244B all inputs
= 25 C.
74F244B
74F244
I
I
I
I
I
I
CCH
CCL
CCZ
CCH
CCL
CCZ
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
CC
IL
IH
CC
IL
IH
CC
CC
CC
CC
CC
CC
CC
CC
CC
= MAX,
= MAX,
OS
= MIN
= MIN,
= MIN,
= MIN,
= MIN, I
= MAX, V
= MAX, V
= MAX, V
= MAX, V
= MAX, V
= MAX
= MAX
= MAX
5
, the use of high-speed test apparatus and/or sample-and-hold
I
= I
CONDITIONS
I
I
I
O
O
= 7.0V
= 2.7V
= 0.5V
IK
= 2.7V
= 0.5V
I
I
OH
I
OH
OL
TEST
= -15mA
= MAX
= -3mA
1
10%V
10%V
10%V
5%V
5%V
5%V
CC
CC
CC
CC
CC
CC
74F244/74F244B
-100
MIN
2.5
2.7
2.0
2.0
LIMITS
TYP
-0.73
0.42
3.4
40
60
60
20
50
29
Product specification
2
MAX
-225
0.55
0.55
-1.2
100
-1.0
-1.6
-40
-50
20
50
60
90
90
30
70
40
UNIT
UNIT
mA
mA
mA
mA
mA
mA
mA
mA
mA
V
V
V
V
V
V
V
A
A
A
A
A