RENESAS HD74HCT244RPEL

HD74HCT244
Octal Buffers/Line Drivers/Line Receivers
(with inverted 3-state outputs)
REJ03D0664–0200
(Previous ADE-205-553)
Rev.2.00
Mar 30, 2006
Description
The HD74HCT244 is a non-inverting buffer and has two active low enable (1G and 2G). Each enable independently
controls 4 buffers.
This device does not have schmitt trigger inputs.
Features
•
•
•
•
•
•
•
LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility
High Speed Operation: tpd (A to Y) = 10 ns typ (CL = 50 pF)
High Output Current: Fanout of 15 LSTTL Loads
Wide Operating Voltage: VCC = 4.5 to 5.5 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Ordering Information
Part Name
Package Type
Package Code
(Previous Code)
Package
Abbreviation
Taping Abbreviation
(Quantity)
HD74HCT244P
DILP-20 pin
PRDP0020AC-B
(DP-20NEV)
P
—
HD74HCT244FPEL
SOP-20 pin (JEITA)
PRSP0020DD-B
(FP-20DAV)
FP
EL (2,000 pcs/reel)
HD74HCT244RPEL
SOP-20 pin (JEDEC)
PRSP0020DC-A
(FP-20DBV)
RP
EL (1,000 pcs/reel)
PTSP0020JB-A
T
(TTP-20DAV)
Note: Please consult the sales office for the above package availability.
HD74HCT244TELL
TSSOP-20 pin
ELL (2,000 pcs/reel)
Function Table
Inputs
G
H
L
L
H
L
X
Z
:
:
:
:
high level
low level
irrelevant
off (high-impedance) state of a 3-state output
Rev.2.00 Mar 30, 2006 page 1 of 6
A
X
H
L
Output
Y
Z
H
L
HD74HCT244
Pin Arrangement
1G
1
20 VCC
1A1
2
19 2G
2Y4
3
18 1Y1
1A2
4
17 2A4
2Y3
5
16 1Y2
1A3
6
15 2A3
2Y2
7
14 1Y3
1A4
8
13 2A2
2Y1
9
12 1Y4
GND 10
11 2A1
(Top view)
Logic Diagram
To three other inverters
VCC
One of 8
inverters
Input A
Y
Strobe G
Absolute Maximum Ratings
Item
Supply voltage range
Input / Output voltage
Input / Output diode current
Output current
VCC, GND current
Power dissipation
Storage temperature
Symbol
VCC
VIN, VOUT
IIK, IOK
IO
ICC or IGND
PT
Tstg
Ratings
–0.5 to 7.0
–0.5 to VCC +0.5
±20
±35
±75
500
–65 to +150
Unit
V
V
mA
mA
mA
mW
°C
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of
which may be realized at the same time.
Rev.2.00 Mar 30, 2006 page 2 of 6
HD74HCT244
Recommended Operating Conditions
Item
Supply voltage
Input / Output voltage
Operating temperature
Input rise / fall time*1
Symbol
VCC
VIN, VOUT
Ta
tr, tf
Ratings
4.5 to 5.5
0 to VCC
–40 to 85
0 to 500
Unit
V
V
°C
ns
Conditions
VCC = 4.5 V
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Electrical Characteristics
Item
Symbol VCC (V)
Input voltage
Output voltage
VIH
VIL
VOH
VOL
Off-state output
current
Input current
Quiescent current
Min
4.5 to 5.5 2.0
4.5 to 5.5 —
4.5
4.4
4.5
4.18
4.5
—
4.5
—
Ta = 25°C
Typ Max
—
—
—
0.8
—
—
—
—
—
0.1
—
0.26
Ta = –40 to+85°C
Min
Max
2.0
—
—
0.8
4.4
—
4.13
—
—
0.1
—
0.33
Unit
Test Conditions
V
V
V
Vin = VIH or VIL IOH = –20 µA
IOH = –6 mA
Vin = VIH or VIL IOL = 20 µA
IOL = 6 mA
V
IOZ
5.5
—
—
±0.5
—
±5.0
µA
Iin
ICC
5.5
5.5
—
—
—
—
±0.1
4.0
—
—
±1.0
40
µA
µA
Vin = VIH or VIL,
Vout = VCC or GND
Vin = VCC or GND
Vin = VCC or GND, Iout = 0 µA
Switching Characteristics
(CL = 50 pF, Input tr = tf = 6 ns)
Item
Propagation delay time
Output enable time
Output disable time
Output rise/fall time
Input capacitance
Symbol VCC (V)
tPHL
tPLH
tZL
tZH
tLZ
tHZ
tTLH / tTHL
Cin
4.5
4.5
4.5
4.5
4.5
4.5
4.5
—
Min
—
—
—
—
—
—
—
—
Ta = 25°C
Ta = –40 to +85°C
Typ Max
Min
Max
11
20
—
25
9
20
—
25
13
30
—
38
12
30
—
38
14
30
—
38
17
30
—
38
4
12
—
15
5
10
—
10
Unit
Test Conditions
ns
ns
ns
ns
pF
Test Circuit
Input
Pulse Generator
Zout = 50 Ω
VCC
See Function Table
VCC
1G, 2G
Output
1 kΩ
1Y1 to 2Y4
1A1 to 2A4
Note : 1. CL includes probe and jig capacitance.
Rev.2.00 Mar 30, 2006 page 3 of 6
S1
OPEN
GND
CL =
50 pF
VCC
TEST
t PLH / t PHL
S1
OPEN
t ZH/ t HZ
t ZL / t LZ
GND
VCC
HD74HCT244
Waveforms
• Waveform – 1
tr
tf
90 %
1.3 V
Input A
VCC
90 %
1.3 V
10 %
10 %
90 %
Output Y
1.3 V
10 %
tTLH
Input G
VOH
90 %
1.3 V
10 %
• Waveform – 2
0V
tPHL
tPLH
tf
VOL
tTHL
tr
90 %
1.3 V
VCC
90 %
1.3 V
10 %
tZL
10 %
0V
tLZ
VOH
1.3 V
Waveform – A
tZH
Waveform – B
10 %
tHZ
1.3 V
90 %
VOL
VOH
VOL
Notes : 1. Input waveform : PRR ≤ 1 MHz, duty cycle 50%, tr ≤ 6 ns, tf ≤ 6 ns
2. Waveform– A is for an output with internal conditions such that the
output is low except when disabled by the output control.
3. Waveform– B is for an output with internal conditions such that the
output is high except when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
Rev.2.00 Mar 30, 2006 page 4 of 6
HD74HCT244
Package Dimensions
JEITA Package Code
P-DIP20-6.3x24.5-2.54
RENESAS Code
PRDP0020AC-B
Previous Code
DP-20NEV
MASS[Typ.]
1.26g
D
11
E
20
1
10
b3
0.89
A1
A
Z
Reference
Symbol
L
e1
D
E
A
A1
bp
b3
c
θ
e
Z
L
θ
bp
e
c
e1
( Ni/Pd/Au plating )
JEITA Package Code
P-SOP20-7.5x12.8-1.27
RENESAS Code
PRSP0020DC-A
*1
Previous Code
FP-20DBV
Dimension in Millimeters
Min
Nom Max
7.62
24.50 25.40
6.30 7.00
5.08
0.51
0.40 0.48 0.56
1.30
0.19 0.25 0.31
0°
15°
2.29 2.54 2.79
1.27
2.54
MASS[Typ.]
0.52g
D
F
20
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
@ DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
@ INCLUDE TRIM OFFSET.
11
HE
c
*2
E
bp
Index mark
Terminal cross section
( Ni/Pd/Au plating )
1
e
*3
bp
x
M
L1
A
Z
Reference Dimension in Millimeters
Symbol
10
A1
θ
L
y
Detail F
Rev.2.00 Mar 30, 2006 page 5 of 6
D
E
A2
A1
A
bp
b1
c
c1
θ
HE
e
x
y
Z
L
L1
Min Nom Max
12.80 13.2
7.50
0.10 0.20 0.30
2.65
0.34 0.40 0.46
0.20 0.25 0.30
0°
8°
10.00 10.40 10.65
1.27
0.12
0.15
0.935
0.40 0.70 1.27
1.45
HD74HCT244
JEITA Package Code
P-SOP20-5.5x12.6-1.27
RENESAS Code
PRSP0020DD-B
*1
Previous Code
FP-20DAV
MASS[Typ.]
0.31g
D
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
F
20
11
*2
c
E
HE
bp
Index mark
Terminal cross section
( Ni/Pd/Au plating )
1
10
e
Z
*3
bp
x
Reference Dimension in Millimeters
Symbol
M
A
L1
A1
θ
y
L
Detail F
JEITA Package Code
P-TSSOP20-4.4x6.5-0.65
RENESAS Code
PTSP0020JB-A
*1
Previous Code
TTP-20DAV
D
E
A2
A1
A
bp
b1
c
c1
θ
HE
e
x
y
Z
L
L1
Min Nom Max
12.60 13.0
5.50
0.00 0.10 0.20
2.20
0.34 0.40 0.46
0.15 0.20 0.25
0°
8°
7.50 7.80 8.00
1.27
0.12
0.15
0.80
0.50 0.70 0.90
1.15
MASS[Typ.]
0.07g
D
F
20
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
11
c
HE
*2
E
bp
Terminal cross section
( Ni/Pd/Au plating )
Index mark
Reference Dimension in Millimeters
Symbol
1
e
bp
L1
x
M
A
Z
10
*3
A1
θ
L
y
Detail F
Rev.2.00 Mar 30, 2006 page 6 of 6
D
E
A2
A1
A
bp
b1
c
c1
θ
HE
e
x
y
Z
L
L1
Min Nom Max
6.50 6.80
4.40
0.03 0.07 0.10
1.10
0.15 0.20 0.25
0.10 0.15 0.20
0°
8°
6.20 6.40 6.60
0.65
0.13
0.10
0.65
0.4 0.5 0.6
1.0
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