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CD54HC244F

Part # CD54HC244F
Description OCTAL BUFFER/LINE DRIVER - Rail/Tube
Category IC
Availability In Stock
Qty 1
Qty Price
1 + $3.62964
Manufacturer Available Qty
RCA
Date Code: 8615
  • Shipping Freelance Stock: 1
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

4
Three-State Leakage
Current
I
OZ
V
IL
or
V
IH
-6--±0.5 - ±0.5 - ±10 µA
HCT TYPES
High Level Input
Voltage
V
IH
- - 4.5 to
5.5
2-- 2 - 2 - V
Low Level Input
Voltage
V
IL
- - 4.5 to
5.5
- - 0.8 - 0.8 - 0.8 V
High Level Output
Voltage
CMOS Loads
V
OH
V
IH
or
V
IL
-0.02 4.5 4.4 - - 4.4 - 4.4 - V
High Level Output
Voltage
TTL Loads
-6 4.5 3.98 - - 3.84 - 3.7 - V
Low Level Output
Voltage
CMOS Loads
V
OL
V
IH
or
V
IL
0.02 4.5 - - 0.1 - 0.1 - 0.1 V
Low Level Output
Voltage
TTL Loads
6 4.5 - - 0.26 - 0.33 - 0.4 V
Input Leakage
Current
I
I
V
CC
to
GND
0 5.5 - - ±0.1 - ±1-±1 µA
Quiescent Device
Current
I
CC
V
CC
or
GND
0 5.5 - - 8 - 80 - 160 µA
Additional Quiescent
Device Current Per
Input Pin: 1 Unit Load
∆I
CC
(Note 2)
V
CC
-2.1
- 4.5 to
5.5
- 100 360 - 450 - 490 µA
Three-State Leakage
Current
I
OZ
V
IL
or
V
IH
- 5.5 - - ±0.5 - ±5-±10 µA
NOTE:
2. For dual-supply systems theoretical worst case (V
I
= 2.4V, V
CC
= 5.5V) specification is 1.8mA.
HCT Input Loading Table
INPUT UNIT LOADS
HCT240
nA0-A3 1.5
1OE 0.7
2OE 0.7
HCT241
nA0-A3 0.7
1OE 0.7
2OE 1.5
HCT244
nA0-A3 0.7
1OE 0.7
2OE 0.7
NOTE: Unit Load is ∆I
CC
limit specified in DC Electrical
Specifications table, e.g., 360µA max at 25
o
C.
DC Electrical Specifications (Continued)
PARAMETER SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C -40
o
C TO 85
o
C -55
o
C TO 125
o
C
UNITSV
I
(V) I
O
(mA) MIN TYP MAX MIN MAX MIN MAX
CD54/74HC240, CD54/74HCT240, CD74HC241, CD54/74HCT241, CD54/74HC244, CD54/74HCT244
5
Switching Specifications C
L
= 50pF, Input t
r
, t
f
= 6ns
PARAMETER SYMBOL
TEST
CONDI-
TIONS
V
CC
(V)
25
o
C -40
o
C TO 85
o
C -55
o
C TO 125
o
C
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
HC TYPES
Propagation Delay t
PLH
, t
PHL
C
L
= 50pF
Data to Outputs
HC240
2 - - 100 - - 125 - - 150 ns
4.5 - - 20 - - 25 - - 30 ns
C
L
= 15pF 5 - 8 - - - ----ns
C
L
= 50pF 6 - - 17 - - 21 - - 26 ns
Data to Outputs
HC241
t
PLH
, t
PHL
C
L
= 50pF 2 - - 110 - - 140 - - 165 ns
4.5 - - 22 - - 28 - - 33 ns
C
L
= 15pF 5 - 9 - - - ----ns
C
L
= 50pF 6 - - 19 - - 24 - - 28 ns
Data to Outputs
HC244
t
PLH
, t
PHL
C
L
= 50pF 2 - - 110 - - 140 - - 165 ns
4.5 - - 22 - - 28 - - 33 ns
C
L
= 15pF 5 - 9 - - - ----ns
C
L
= 50pF 6 - - 19 - - 24 - - 28 ns
Output Enable and Disable
Time
t
THL
, t
TLH
C
L
= 50pF 2 - - 150 - - 190 - - 225 ns
4.5 - - 30 - - 38 - - 45 ns
5-12-------ns
6 - -26- -33- -38ns
Output Transition Time t
TLH
, t
THL
C
L
= 50pF 2 - - 60 - - 75 - - 90 ns
4.5 - - 12 - - 15 - - 18 ns
6 - -10- -13- -15ns
Input Capacitance C
I
C
L
= 50pF - 10 - 10 - - 10 - - 10 pF
Three-State Output
Capacitance
C
O
C
L
= 50pF - - - 20 - - 20 - - 20 pF
Power Dissipation Capacitance
(Notes 3, 4)
C
PD
C
L
= 15pF
HC240 5 - 38 - - - ----pF
HC241 5 - 34 - - - ----pF
HC244 5 - 46 - - - ----pF
HCT TYPES
Propagation Delay
Data to Outputs
HCT240
t
PHL,
t
PLH
C
L
= 50pF 4.5 - - 22 - - 28 - - 33 ns
C
L
= 15pF 5 - 9 - - - ----ns
Data to Outputs
HCT241
t
PHL,
t
PLH
C
L
= 50pF 4.5 - - 25 - - 31 - - 38 ns
C
L
= 15pF 5 - 10 - - - ----ns
Data to Outputs
HCT244
t
PHL,
t
PLH
C
L
= 50pF 4.5 - - 25 - - 31 - - 38 ns
C
L
= 15pF 5 - 10 - - - ----ns
CD54/74HC240, CD54/74HCT240, CD74HC241, CD54/74HCT241, CD54/74HC244, CD54/74HCT244
6
Output Enable and Disable
Times
t
TLH,
t
THL
C
L
= 50pF 4.5 - - 30 - - 38 - - 45 ns
Output Transition Time t
THL
, t
TLH
C
L
= 50pF 4.5 - - 12 - - 15 - - 18 ns
Input Capacitance C
I
C
L
= 50pF - 10 - 10 - - 10 - - 10 pF
Power Dissipation Capacitance
(Notes 3, 4)
C
PD
HCT240 - 5 - 40 - - - ----pF
HCT241 - 5 - 38 - - - ----pF
HCT244 - 5 - 40 - - - ----pF
NOTES:
3. C
PD
is used to determine the dynamic power consumption, per channel.
4. P
D
= V
CC
2
f
i
(C
PD
+ C
L
) where f
i
= Input Frequency, f
O
= Output Frequency, C
L
= Output Load Capacitance, V
CC
= Supply Voltage.
Test Circuits and Waveforms
FIGURE 1. HC TRANSITION TIMES AND PROPAGATION
DELAY TIMES, COMBINATION LOGIC
FIGURE 2. HCT TRANSITION TIMES AND PROPAGATION
DELAY TIMES, COMBINATION LOGIC
FIGURE 3. HC THREE-STATE PROPAGATION DELAY
WAVEFORM
FIGURE 4. HCT THREE-STATE PROPAGATION DELAY
WAVEFORM
Switching Specifications C
L
= 50pF, Input t
r
, t
f
= 6ns (Continued)
PARAMETER SYMBOL
TEST
CONDI-
TIONS
V
CC
(V)
25
o
C -40
o
C TO 85
o
C -55
o
C TO 125
o
C
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
t
PHL
t
PLH
t
THL
t
TLH
90%
50%
10%
50%
10%
INVERTING
OUTPUT
INPUT
GND
V
CC
t
r
= 6ns t
f
= 6ns
90%
t
PHL
t
PLH
t
THL
t
TLH
2.7V
1.3V
0.3V
1.3V
10%
INVERTING
OUTPUT
INPUT
GND
3V
t
r
= 6ns
t
f
= 6ns
90%
50%
10%
90%
GN
D
V
CC
10%
90%
50%
50%
OUTPUT
DISABLE
OUTPUT LOW
TO OFF
O
UTPUT HIGH
TO OFF
OUTPUTS
ENABLED
OUTPUTS
DISABLED
OUTPUTS
ENABLED
6ns 6ns
t
PZH
t
PHZ
t
PZL
t
PLZ
0.3
2.7
GN
D
3V
10%
90%
1.3V
1.3V
OUTPUT
DISABLE
OUTPUT LOW
TO OFF
O
UTPUT HIGH
TO OFF
OUTPUTS
ENABLED
OUTPUTS
DISABLED
OUTPUTS
ENABLED
t
r
6ns
t
PZH
t
PHZ
t
PZL
t
PLZ
6ns t
f
1.3
CD54/74HC240, CD54/74HCT240, CD74HC241, CD54/74HCT241, CD54/74HC244, CD54/74HCT244
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