74LVTH244ADB [NXP]
3.3V Octal buffer/line driver 3-State; 3.3V八路缓冲器/线路驱动器三态
| 型号： | 74LVTH244ADB |
| 厂家： | 
NXP |
| 描述： | 3.3V Octal buffer/line driver 3-State |
| 文件： | 总10页 (文件大小：102K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74LVTH244A
3.3V Octal buffer/line driver (3-State)
Propduct specification
IC23 Data Handbook
1998 Oct 02
Philips
Semiconductors
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver (3-State)
74LVTH244A
FEATURES
• Octal bus interface
DESCRIPTION
The LVTH244A is a high-performance BiCMOS product designed for
operation at 3.3V.
V
CC
• 3-State buffers
This device is an octal buffer that is ideal for driving bus lines. The
device features two Output Enables (OE1, OE2), each controlling
four of the 3-State outputs.
• Output capability: +64mA/-32mA
• TTL input and output switching levels
• Input and output interface capability to systems at 5V supply
• Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
• Power-up 3-State
• Live insertion/extraction permitted
• No bus current loading when output is tied to 5V bus
• Latch-up protection exceeds 500mA per JEDEC Std 17
• ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
QUICK REFERENCE DATA
CONDITIONS
= 25°C; GND = 0V
SYMBOL
PARAMETER
TYPICAL
UNIT
T
amb
t
t
Propagation delay
nAx to nYx
C = 50pF;
1.9
2.0
PLH
PHL
L
ns
V
CC
= 3.3V
C
Input capacitance
Output capacitance
Total supply current
V = 0V or 3.0V
4
8
pF
pF
IN
I
C
Outputs disabled; V = 0V or 3.0V
O
OUT
CCZ
I
Outputs disabled; V = 3.6V
0.13
mA
CC
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
SOT163-1
20-Pin Plastic SOL
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
74LVTH244A D
74LVTH244A DB
74LVTH244A PW
74LVTH244A D
74LVTH244A DB
7LVTH244APW DH
20-Pin Plastic SSOP Type II
20-Pin Plastic TSSOP Type I
SOT339-1
SOT360-1
PIN CONFIGURATION
PIN DESCRIPTION
PIN NUMBER
2, 4, 6, 8
SYMBOL
1A0 – 1A3
2A0 – 2A3
1Y0 – 1Y3
2Y0 – 2Y3
1OE, 2OE
GND
NAME AND FUNCTION
Data inputs
11. 13, 15, 17
18, 16, 14, 12
9, 7, 5, 3
Data inputs
Data outputs
20
1OE
1A0
2Y3
1A1
2Y2
1A2
2Y1
1A3
2Y0
1
2
3
4
5
6
7
8
9
V
CC
19 2OE
18 1Y0
17 2A3
16 1Y1
15 2A2
14 1Y2
13 2A1
12 1Y3
Data outputs
1, 19
Output enables
Ground (0V)
10
20
V
CC
Positive supply voltage
GND 10
11
2A0
SV00010
2
1998 Oct 02
853-2130 20128
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver (3-State)
74LVTH244A
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
1Y0
1A0
1
2
18
EN
1Y1
1Y2
1Y3
1A1
1A2
1A3
1OE
2A0
2A1
4
6
16
14
12
2
4
6
8
18
16
14
12
8
1
2Y0
2Y1
11
9
7
5
3
19
EN
13
15
11
13
15
17
9
7
5
3
2Y2
2Y3
2A2
2A3
2OE
17
19
SV00011
SV00012
FUNCTION TABLE
INPUTS
OUTPUTS
nOE1
nAx
L
nYx
L
L
L
H
H
H
X
Z
H = High voltage level
L
X
Z
= Low voltage level
= Don’t care
= High impedance ”off” state
1, 2
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
DC supply voltage
CONDITIONS
RATING
–0.5 to +4.6
UNIT
V
CC
V
V
V
3
V
I
DC input voltage
–0.5 to +7.0
–0.5 to +7.0
128
3
V
OUT
DC output voltage
DC output current
Output in Off or High state
Output in Low state
I
mA
OUT
Output in High state
–64
I
DC input diode current
DC output diode current
Storage temperature range
V < 0
–50
mA
mA
°C
IK
I
I
V
O
< 0
–50
OK
T
stg
–65 to 150
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 performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
3
1998 Oct 02
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver (3-State)
74LVTH244A
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
PARAMETER
UNIT
MAX
MIN
2.7
0
V
CC
DC supply voltage
3.6
5.5
V
V
V
I
Input voltage
V
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
2.0
V
IH
V
0.8
–32
32
V
IL
I
mA
OH
I
OL
mA
Low-level output current; current duty cycle ≤ 50%, f ≥ 1kHz
Input transition rise or fall rate; outputs enabled
Operating free-air temperature range
64
∆t/∆v
10
ns/V
T
amb
–40
+85
°C
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
Input clamp voltage
TEST CONDITIONS
Temp = -40°C to +85°C
UNIT
1
MIN
TYP
MAX
V
IK
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 2.7V; I = –18mA
–0.9
–1.2
V
V
IK
= 2.7 to 3.6V; I = –100µA
V
-0.2
V
CC
-0.1
OH
CC
V
OH
High-level output voltage
= 2.7V; I = –8mA
2.4
2.5
OH
= 3.0V; I = –32mA
2.0
2.2
0.1
0.3
0.25
0.3
0.4
0.1
±0.1
0.1
–1
OH
= 2.7V; I = 100µA
0.2
0.5
0.4
0.5
0.55
10
OL
= 2.7V; I = 24mA
OL
V
OL
Low-level output voltage
= 3.0V; I = 16mA
V
OL
= 3.0V; I = 32mA
OL
= 3.0V; I = 64mA
OL
= 0 or 3.6V; V = 5.5V
I
= 3.6V; V = V or GND
Control pins
±1
I
CC
CC
I
I
Input leakage current
µA
= 3.6V; V = V
1
I
4
Data Pins
= 3.6V; V = 0
-5
I
I
Output off current
= 0V; V or V = 0 to 4.5V
1
±100
µA
µA
OFF
I
O
= 3V; V = 0.8V
75
130
–140
I
6
= 3V; V = 2.0V
–75
I
Bus Hold current A inputs
I
HOLD
= 0V to 3.6V; V = 3.6V
±500
CC
Current into an output in the
I
V
= 5.5V; V = 3.0V
60
125
µA
µA
EX
O
CC
High state when V > V
O
CC
Power up/down 3-State
V
CC
≤ 1.2V; V = 0.5V to V ; V = GND or V
;
CC
O
CC
I
I
±1
±100
PU/PD
3
output current
OE/OE = Don’t care
I
3-State output high current
3-State output low current
V
V
V
V
V
V
= 3.6V; V = 3V; V = V or V
IH
1
–1
5
–5
µA
µA
OZH
CC
CC
CC
CC
CC
CC
O
I
IL
I
= 3.6V; V = 0.5V; V = V or V
O I IL IH
OZL
I
I
= 3.6V; Outputs High, V = GND or V I 0
CC, O =
0.13
2
0.19
5
CCH
I
I
Quiescent supply current
= 3.6V; Outputs Low, V = GND or V I 0
CC, O =
mA
mA
CCL
I
5
= 3.6V; Outputs Disabled; V = GND or V
I = 0
CC, O
0.13
0.19
CCZ
I
Additional supply current per
= 3V to 3.6V; One input at V -0.6V,
CC
∆I
0.1
0.2
CC
2
input pin
Other inputs at V or GND
CC
NOTES:
1. All typical values are at T
= 25°C.
amb
2. This is the increase in supply current for each input at the specified voltage level other than V or GND
CC
3. This parameter is valid for any V between 0V and 1.2V with a transition time of up to 10msec. From V = 1.2V to V = 3.3V ± 0.3V a
CC
CC
CC
transition time of 100µsec is permitted. This parameter is valid for T
= 25°C only.
amb
4. Unused pins at V or GND.
CC
5. I
is measured with outputs pulled to V or GND.
CCZ
CC
6. This is the bus hold overdrive current required to force the input to the opposite logic state.
4
1998 Oct 02
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver (3-State)
74LVTH244A
AC CHARACTERISTICS
GND = 0V; t = t = 2.5ns; C = 50pF; R = 500Ω; T
= –40°C to +85°C.
R
F
L
L
amb
LIMITS
= 3.3V ±0.3V
SYMBOL
PARAMETER
WAVEFORM
V
CC
V
CC
= 2.7V
UNIT
1
MIN
TYP
MAX
MAX
t
t
Propagation delay
nAx to nYx
1.1
1.3
1.9
2.0
3.5
3.3
3.8
3.6
PLH
PHL
1
2
2
ns
ns
ns
t
Output enable time
to High and Low level
1.1
1.4
2.8
2.3
4.5
4.4
5.3
4.9
PZH
t
PZL
t
Output disable time
from High and Low level
1.9
1.8
2.9
2.5
4.4
4.4
4.5
4.4
PHZ
t
PLZ
NOTE:
1. All typical values are at V = 3.3V and T
= 25°C.
amb
CC
AC WAVEFORMS
V
M
= 1.5V, V = GND to 2.7V
IN
2.7V
0V
3.0V or V
whichever
is less
CC
1.5V
t
OE INPUT
1.5V
t
nAx INPUT
V
V
M
M
t
PLZ
PZL
3.0V
0V
t
PLH
PHL
1.5V
V
Yn OUTPUT
Yn OUTPUT
OH
V
V
+ 0.3V
– 0.3V
OL
OL
V
M
V
M
nYx
OUTPUT
t
t
PHZ
PZH
V
OL
V
OH
V
OH
1.5V
0V
SV00103
SA00016
Waveform 1. Input (nAx) to Output (nYx) Propagation Delays
Waveform 2. 3-State Output Enable and Disable Times
5
1998 Oct 02
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver (3-State)
74LVTH244A
TEST CIRCUIT AND WAVEFORMS
6.0V
V
CC
t
W
AMP (V)
90%
Open
GND
90%
NEGATIVE
PULSE
V
V
M
V
V
OUT
M
10%
R
R
IN
L
10%
90%
PULSE
GENERATOR
D.U.T.
0V
(t
t
t
(t
(t
)
t
t
)
THL
F
TLH
R
R
T
C
L
L
)
(t )
F
TLH
R
THL
AMP (V)
90%
M
Test Circuit for 3-State Outputs
POSITIVE
PULSE
V
V
M
10%
10%
t
W
0V
SWITCH POSITION
V
= 1.5V
M
TEST
SWITCH
Open
6V
Input Pulse Definition
t
/t
PLH PHL
t
/t
PLZ PZL
t
/t
GND
PHZ PZH
INPUT PULSE REQUIREMENTS
DEFINITIONS
FAMILY
R = Load resistor; see AC CHARACTERISTICS for value.
L
Amplitude
Rep. Rate
t
t
R
t
F
W
C = Load capacitance includes jig and probe capacitance;
L
see AC CHARACTERISTICS for value.
74LVT
2.7V
500ns
v10MHz
v2.5ns v2.5ns
R = Termination resistance should be equal to Z
T
of
OUT
pulse generators.
SV00092
6
1998 Oct 02
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver (3-State)
74LVTH244A
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
7
1998 Oct 02
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver (3-State)
74LVTH244A
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
8
1998 Oct 02
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver (3-State)
74LVTH244A
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
9
1998 Oct 02
Philips Semiconductors
Product specification
3.3V Octal buffer/line driver (3-State)
74LVTH244A
Data sheet status
[1]
Data sheet
status
Product
status
Definition
Objective
specification
Development
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
Preliminary
specification
Qualification
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.
Product
specification
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.
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Righttomakechanges—PhilipsSemiconductorsreservestherighttomakechanges, withoutnotice, intheproducts, includingcircuits,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.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Date of release: 05-96
9397-750-04618
Document order number:
Philips
Semiconductors
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