PHILIPS 74LV244PW

INTEGRATED CIRCUITS
74LV244
Octal buffer/line driver (3-State)
Product specification
Supersedes data of 1997 Feb 19
IC24 Data Handbook
1998 May 20
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
FEATURES
DESCRIPTION
• Wide operating voltage: 1.0 to 5.5 V
• Optimized for low voltage applications: 1.0 to 3.6 V
• Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
• Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V,
The 74LV244 is a low-voltage Si-gate CMOS device and is pin and
function compatible with 74HC/HCT244.
The 74LV244 is an octal non-inverting buffer/line driver with 3-State
outputs. The 3-State outputs are controlled by the output enable
inputs 1OE and 2OE. A HIGH on nOE causes the outputs to
assume a high impedance OFF-state. The 74LV244 is identical to
the 74LV240 but has non-inverting outputs.
Tamb = 25°C
• Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V,
Tamb = 25°C
• Output capability: bus driver
• ICC category: MSI
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25°C; tr = tf ≤ 2.5 ns
PARAMETER
SYMBOL
CONDITIONS
tPHL/tPLH
Propagation delay
1An to 1Yn;
2An to 2Yn
CL = 15 pF;
VCC = 3.3 V
CI
Input capacitance
CPD
Power dissipation capacitance per buffer
VCC = 3.3 V
VI = GND to VCC1
TYPICAL
UNIT
8.0
ns
3.5
pF
35
pF
NOTE:
1. CPD is used to determine the dynamic power dissipation (PD in µW)
PD = CPD VCC2 fi (CL VCC2 fo) where:
fi = input frequency in MHz; CL = output load capacitance in pF;
fo = output frequency in MHz; VCC = supply voltage in V;
(CL VCC2 fo) = sum of the outputs.
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
PKG. DWG. #
20-Pin Plastic DIL
–40°C to +125°C
74LV244 N
74LV244 N
SOT146-1
20-Pin Plastic SO
–40°C to +125°C
74LV244 D
74LV244 D
SOT163-1
20-Pin Plastic SSOP Type II
–40°C to +125°C
74LV244 DB
74LV244 DB
SOT339-1
20-Pin Plastic TSSOP Type I
–40°C to +125°C
74LV244 PW
74LV244PW DH
SOT360-1
PIN CONFIGURATION
LOGIC SYMBOL
1
20
VCC
2 1A0
17 2A0
1Y0 18
2Y0 3
1A0
2
19
2OE
2Y0
3
18
1Y0
4 1A1
15 2A1
1Y1 16
2Y1 5
1A1
4
17
2A0
6 1A2
13 2A2
1Y2 14
2Y2 7
8 1A3
11 2A3
1Y3 12
2Y3 9
1OE
2Y1
5
16
1Y1
1A2
6
15
2A1
2Y2
7
14
1Y2
1A3
8
13
2A2
2Y3
9
12
1Y3
GND
10
11
2A3
1 1OE
19 2OE
SV00621
SV00620
1998 May 20
2
853–1924 19420
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
PIN DESCRIPTION
PIN
NUMBER
FUNCTIONAL DIAGRAM
SYMBOL
FUNCTION
2
1A0
1Y0
18
4
1A1
1Y1
16
6
1A2
1Y2
14
8
1A3
1Y3
12
1
1OE
Output enable input (active LOW)
2, 4, 6, 8
1A0 to 1A3
Data inputs
3, 5, 7, 9
2Y0 to 2Y3
Bus outputs
10
GND
Ground (0 V)
17, 15, 13, 11
2A0 to 2A3
Data inputs
1
1OE
18, 16, 14, 12
1Y0 to 1Y3
Bus outputs
17
2A0
2Y0
3
19
2OE
Output enable input (active LOW)
15
2A1
2Y1
5
20
VCC
Positive supply voltage
13
2A2
2Y2
7
11
2A3
2Y3
9
19
2OE
LOGIC SYMBOL (IEEE/IEC)
1
EN
2
18
4
16
6
14
8
12
19
SV00622
FUNCTION TABLE
INPUTS
EN
11
9
13
7
15
5
17
3
nOE
nAn
nYn
L
L
L
L
H
H
H
X
Z
NOTES:
H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
SV00666
1998 May 20
OUTPUT
3
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
RECOMMENDED OPERATING CONDITIONS
SYMBOL
VCC
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
See Note 1
1.0
3.3
5.5
V
DC supply voltage
VI
Input voltage
0
–
VCC
V
VO
Output voltage
0
–
VCC
V
+85
+125
°C
500
200
100
50
ns/V
Tamb
Operating ambient temperature range in free air
tr, tf
Input rise and fall times
See DC and AC
characteristics
–40
–40
VCC = 1.0V to 2.0V
VCC = 2.0V to 2.7V
VCC = 2.7V to 3.6V
VCC = 3.6V to 5.5V
–
–
–
–
–
–
–
–
NOTE:
1. The LV is guaranteed to function down to VCC = 1.0V (input levels GND or VCC); DC characteristics are guaranteed from VCC = 1.2V to
VCC = 5.5V.
ABSOLUTE MAXIMUM RATINGS1, 2
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0V).
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
–0.5 to +7.0
V
VCC
DC supply voltage
IIK
DC input diode current
VI < –0.5 or VI > VCC + 0.5V
20
mA
IOK
DC output diode current
VO < –0.5 or VO > VCC + 0.5V
50
mA
IO
DC output source or sink current
– bus driver outputs
–0.5V < VO < VCC + 0.5V
35
mA
70
mA
–65 to +150
°C
IGND,
ICC
Tstg
PTOT
DC VCC or GND current for types with
– bus driver outputs
Storage temperature range
Power dissipation per package
– plastic DIL
– plastic mini-pack (SO)
– plastic shrink mini-pack (SSOP and TSSOP)
for temperature range: –40 to +125°C
above +70°C derate linearly with 12 mW/K
above +70°C derate linearly with 8 mW/K
above +60°C derate linearly with 5.5 mW/K
750
500
400
mW
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 May 20
4
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltages are referenced to GND (ground = 0V).
LIMITS
SYMBOL
PARAMETER
-40°C to +85°C
TEST CONDITIONS
MIN
VIH
VIL
HIGH level Input
voltage
LOW level Input
voltage
TYP1
VOH
O
VOL
VOL
O
HIGH level output
voltage; BUS driver
outputs
LOW level
l
l output
t t
voltage
out uts
voltage; all outputs
LOW level output
voltage; BUS driver
outputs
MIN
0.9
0.9
VCC = 2.0V
1.4
1.4
VCC = 2.7 to 3.6V
2.0
2.0
VCC = 4.5 to 5.5V
0.7VCC
0.7VCC
UNIT
MAX
V
VCC = 1.2V
0.3
0.3
VCC = 2.0V
0.6
0.6
VCC = 2.7 to 3.6V
0.8
0.8
0.3VCC
0.3VCC
VCC = 1.2V; VI = VIH or VIL; –IO = 100µA
VOH
MAX
VCC = 1.2V
VCC = 4.5 to 5.5
HIGH level
l
l output
t t
voltage
out uts
voltage; all outputs
-40°C to +125°C
V
1.2
VCC = 2.0V; VI = VIH or VIL; –IO = 100µA
1.8
2.0
1.8
VCC = 2.7V; VI = VIH or VIL; –IO = 100µA
2.5
2.7
2.5
VCC = 3.0V; VI = VIH or VIL; –IO = 100µA
2.8
3.0
2.8
VCC = 4.5V; VI = VIH or VIL; –IO = 100µA
4.3
4.5
4.3
VCC = 3.0V; VI = VIH or VIL; –IO = 8mA
2.40
2.82
2.20
VCC = 4.5V; VI = VIH or VIL; –IO = 16mA
3.60
4.20
3.50
V
V
VCC = 1.2V; VI = VIH or VIL; IO = 100µA
0
VCC = 2.0V; VI = VIH or VIL; IO = 100µA
0
0.2
0.2
VCC = 2.7V; VI = VIH or VIL; IO = 100µA
0
0.2
0.2
VCC = 3.0V; VI = VIH or VIL; IO = 100µA
0
0.2
0.2
VCC = 4.5V; VI = VIH or VIL; IO = 100µA
0
0.2
0.2
VCC = 3.0V; VI = VIH or VIL; IO = 8mA
0.25
0.40
0.50
VCC = 4.5V; VI = VIH or VIL; IO = 16mA
0.35
0.55
0.65
1.0
1.0
µA
5
10
µA
V
V
Input leakage
current
VCC = 5.5V; VI = VCC or GND
IOZ
3-State output
OFF-state current
VCC = 3.6V; VI = VIH or VIL;
VO = VCC or GND
ICC
Quiescent supply
current; MSI
VCC = 5.5V; VI = VCC or GND; IO = 0
20.0
160
µA
∆ICC
Additional
quiescent supply
current per input
VCC = 2.7V to 3.6V; VI = VCC – 0.6V
500
850
µA
II
NOTE:
1. All typical values are measured at Tamb = 25°C.
1998 May 20
5
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
AC CHARACTERISTICS
GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL =1KΩ
LIMITS
CONDITION
SYMBOL
PARAMETER
VCC(V)
Pro agation delay
Propagation
1An to 1Yn;
2An to 2Yn
tPHL/tPLH
–40 to +85 °C
WAVEFORM
MIN
TYP1
tPZH/tPZL
2.0
17
24
31
2.7
13
17
23
3.0 to 3.6
92
14
18
12
15
Figures 1, 2
1.2
65
2.0
22
39
49
2.7
16
29
36
3.0 to 3.6
122
23
29
19
24
Figures 2, 3
3-State out
output
ut disable time
1OE to 1Yn;
2OE to 2Yn
1.2
60
2.0
22
34
43
2.7
17
24
32
3.0 to 3.6
132
21
26
16
19
Figures 2, 3
4.5 to 5.5
UNIT
MAX
50
4.5 to 5.5
tPHZ/tPLZ
MIN
1.2
4.5 to 5.5
3-State out
output
ut enable time
1OE to 1Yn;
2OE to 2Yn
–40 to +125 °C
MAX
ns
ns
ns
NOTES:
1. Unless otherwise stated, all typical values are measured at Tamb = 25°C.
2. Typical values are measured at VCC = 3.3 V.
AC WAVEFORMS
VM = 1.5 V at VCC ≥ 2.7 V and ≤ 3.6 V
VM = 0.5 × VCC at VCC < 2.7 V and ≥ 4.5 V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VX = VOL + 0.3 V at VCC ≥ 2.7 V and ≤ 3.6 V
VX = VOL + 0.1 × VCC at VCC < 2.7 V and ≥ 4.5 V
VY = VOH – 0.3 V at VCC ≥ 2.7V and ≤ 3.6 V
VY = VOH – 0.1 × VCC at VCC < 2.7 V and ≥ 4.5 V
VI
OE INPUT
VCC
VM
VX
tPZH
tPHZ
VM
VOH
GND
tPHL
VY
Qn OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
tPLH
VOH
1Yn, 2Yn
OUTPUT
tPZL
tPLZ
Qn OUTPUT
LOW-to-OFF
OFF-to-LOW
VOL
VI
1An, 2An
INPUTS
VM
GND
VM
outputs
enabled
VM
outputs
disabled
outputs
enabled
SV00623
VOL
Figure 2. 3-State enable and disable times.
SV00617
Figure 1. Input (1An, 2An) to output (1Yn, 2Yn)
propagation delays.
1998 May 20
6
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
TEST CIRCUIT
VCC
2 * VCC
Open
GND
RL = 1k
VO
VI
PULSE
GENERATOR
D.U.T.
RT
CL
RL = 1k
50 pF
Test Circuit for Outputs
DEFINITIONS
RL = Load resistor
CL = Load capacitance includes jig and probe capacitiance.
RT = Termination resistance should be equal to ZOUT of pulse generators.
SWITCH POSITION
S1
VCC
tPLH/tPHL
Open
< 2.7V
VCC
tPLZ/tPZL
2 * VCC
2.7–3.6V
2.7V
tPHZ/tPZH
GND
TEST
4.5V
VI
VCC
SV00896
Figure 3. Load circuitry for switching times.
1998 May 20
7
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
DIP20: plastic dual in-line package; 20 leads (300 mil)
1998 May 20
8
SOT146-1
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
SO20: plastic small outline package; 20 leads; body width 7.5 mm
1998 May 20
9
SOT163-1
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm
1998 May 20
10
SOT339-1
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm
1998 May 20
11
SOT360-1
Philips Semiconductors
Product specification
Octal buffer/line driver (3-State)
74LV244
DEFINITIONS
Data Sheet Identification
Product Status
Definition
Objective Specification
Formative or in Design
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
Preliminary Specification
Preproduction Product
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
Product Specification
Full Production
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing
or modification.
LIFE SUPPORT APPLICATIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
 Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Document order number:
1998 May 20
12
Date of release: 05-96
9397-750-04437