74LVC2952APW [NXP]
Octal registered tranceiver with 5-volt tolerant inputs/ouputs 3-State; 八路与宽容的5伏的输入/ OUPUTS三态收发登记
| 型号： | 74LVC2952APW |
| 厂家： | 
NXP |
| 描述： | Octal registered tranceiver with 5-volt tolerant inputs/ouputs 3-State |
| 文件： | 总11页 (文件大小：105K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74LVC2952A
Octal registered tranceiver with 5-volt
tolerant inputs/ouputs (3-State)
Product specification
1998 Jul 29
Philips
Semiconductors
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
FEATURES
DESCRIPTION
The 74LVC2952A is a low-power, low-voltage, Si-gate CMOS device
and superior to most advanced CMOS compatible TTL families. The
74LVC2952A is an octal non-inverting registered transceiver. Two 8-bit
back to back registers store data flowing in both directions between two
bidirectional busses. Data applied to the inputs is entered and stored on
• 5-volt tolerant inputs/outputs, for interfacing with 5-volt logic
• Wide supply voltage range of 1.2 V to 3.6 V
• In accordance with the JEDEC standard no. 8-1 A
• Inputs accept voltages up to 5.5 V
• CMOS low power consumption
• Flow-through pin-out architecture
• 3-State outputs
the rising edge of the clock (CPnn) provided that the clock enable CE
is LOW. The data is then present at the 3-State output buffers, but is
only accessible when the output enable input (OE ) is LOW. Data flow
from A inputs to B outputs is the same as for B inputs to A outputs. The
74LVC2952A is identical to the 74LVC2953A but has non-inverting
outputs.
)
nn
nn
• Direct interface with TTL levels
• Integrated 30W damping resistor
QUICK REFERENCE DATA
GND = 0 V; T
= 25°C; t =t ≤ 2.5 ns
amb
r f
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
C = 50 pF;
Propagation delay
CP to A , B
L
t
f
/t
4.3
ns
PHL PLH
V
CC
= 3.3 V
nn
n
n
Maximum clock frequency
Input capacitance
150
5
MHz
pF
max
C
C
C
I
Input/output capacitance
Power dissipation capacitance per buffer
10
31
pF
I/O
1
V
CC
= 3.3V
pF
PD
NOTE:
1
C
is used to determine the dynamic power dissipation (P in µW)
P
D
D
2
2
P
D
= C × V
× f )ȍ (C × V
× f ) where:
CC o
PD
CC
i
L
f = input frequency in MHz; C = output load capacity in pF;
i
L
f = output frequency in MHz; V = supply voltage in V;
o
CC
2
ȍ (C × V
× f ) = sum of the outputs.
L
CC
o
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
NORTH AMERICA
74LVC2952A D
PKG. DWG. #
SOT137-1
SOT340-1
SOT355-1
24-Pin Plastic SO
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
74LVC2952A D
74LVC2952A DB
74LVC2952A PW
24-Pin Plastic SSOP Type II
24-Pin Plastic TSSOP Type I
74LVC2952A DB
74LVC2952APW DH
PIN CONFIGURATION
PIN DESCRIPTION
PIN NUMBER
SYMBOL
FUNCTION
B
B
B
B
1
2
24
23
22
21
20
19
18
17
16
15
14
13
V
A
A
7
6
5
4
CC
7
8, 7, 6, 5, 4, 3, 2, 1,
12
B to B
0
B data inputs/outputs
Ground (0 V)
7
3
6
GND
4
A
A
A
A
A
A
5
4
3
2
1
0
Output enable inputs
(active LOW)
9, 15
OE ,OE
AB BA
B
B
5
3
2
6
10, 14
11, 13,
CP , CP
Clock inputs
AB
BA
B
B
7
1
0
CE , CE
Clock enable inputs
8
AB
BA
OE
9
AB
16, 17, 18, 19, 20,
21, 22, 23
A to A
0
A data inputs/outputs
7
CP
10
11
12
OE
CP
CE
AB
BA
BA
BA
CE
AB
24
V
Positive supply voltage
CC
GND
SV01716
2
1998 Jul 29
853-1993 19803
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
LOGIC SYMBOL (IEEE/IEC)
FUNCTIONAL DIAGRAM
9
16
A
A
A
A
A
A
A
A
B
B
B
B
B
B
B
B
8
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
OE
AB
CP
CE
CP
CE
14
10
11
16
17
18
19
20
21
22
23
17
18
19
20
21
22
23
AB
AB
BA
6
5
4
3
2
1
13
8
BA
B
A
0
0
B
B
B
B
B
B
B
7
A
1
1
2
3
4
5
6
7
A
2
6
5
4
3
2
1
A
3
A
4
9
15
11
13
10
14
OE
OE
CE
CE
CP
CP
A
5
AB
BA
AB
BA
AB
BA
A
6
A
7
OE
BA
15
SV01717
SV01719
LOGIC SYMBOL
14
10
13
11
15
9
1 C5
2 C6
G1
G2
EN3
EN4
8
7
16
1
5D
4
3
6D
1
17
18
19
20
21
22
23
6
5
4
3
2
1
SV01718
3
1998 Jul 29
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
FUNCTION TABLE for register A or B
FUNCTION TABLE for output enable
n
n
INPUTS
INPUTS
OE
INTERNAL
OPERATING
MODE
INTERNAL
Q
A or B
n n
OUTPUTS
OPERATING MODE
Q
A or B
n
CP
CE
nn
n
nn
nn
X
L
X
↑
H
L
L
NC
L
Hold data
Load data
Load data
H
L
L
X
L
Z
L
Disable outputs
Enable outputs
Enable outputs
H
↑
H
H
H
NOTES:
H
L
X
=
=
=
HIGH voltage level
LOW voltage level
don’t care
Z
↑
=
=
high impedance OFF-state
Low-to-High transition
NC = no change
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
PARAMETER
CONDITIONS
UNIT
MAX
MIN
2.7
1.2
0
DC supply voltage (for max. speed performance)
DC supply voltage (for low-voltage applications)
DC input voltage range
3.6
V
CC
V
3.6
V
I
5.5
V
V
DC output voltage range; output HIGH or LOW state
DC input voltage range; output 3-State
Operating free-air temperature range
0
V
CC
V
I/O
0
5.5
T
amb
–40
+85
°C
V
CC
V
CC
= 1.2 to 2.7V
= 2.7 to 3.6V
0
0
20
10
t , t
r
Input rise and fall times
ns/V
f
1
ABSOLUTE MAXIMUM RATINGS
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0 V).
SYMBOL
PARAMETER
DC supply voltage
CONDITIONS
RATING
–0.5 to +6.5
–50
UNIT
V
V
CC
I
IK
DC input diode current
V t 0
mA
V
I
V
I
DC input voltage
Note 2
–0.5 to +6.5
"50
I
DC output diode current
V
O
uV or V t 0
mA
OK
CC
O
DC output voltage; output HIGH or LOW
DC output voltage; output 3-State
DC output source or sink current
Note 2
Note 2
–0.5 to V +0.5
CC
V
I
V
I/O
–0.5 to 6.5
"50
V
O
= 0 to V
mA
mA
°C
O
CC
I
, I
DC V or GND current
"100
GND CC
CC
T
stg
Storage temperature range
–65 to +150
Power dissipation per package
– plastic mini-pack (SO)
– plastic shrink mini-pack (SSOP and TSSOP)
P
TOT
above +70°C derate linearly with 8 mW/K
above +60°C derate linearly with 5.5 mW/K
500
500
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.
4
1998 Jul 29
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions voltages are referenced to GND (ground = 0V)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40°C to +85°C
UNIT
1
MIN
TYP
MAX
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
= 1.2V
V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
V
HIGH level Input voltage
LOW level Input voltage
V
IH
= 2.7 to 3.6V
= 1.2V
2.0
GND
0.8
V
V
V
IL
= 2.7 to 3.6V
= 2.7V; V = V or V ; I = –12mA
V
V
V
V
*0.5
I
IH
IL
O
CC
CC
CC
CC
= 3.0V; V = V or V ; I = –100µA
*0.2
*0.6
*0.8
V
CC
I
IH
IL
O
V
OH
HIGH level output voltage
LOW level output voltage
= 3.0V; V = V or V I
= –18mA
I = –24mA
V
V
I
IH
IL; O
= 3.0V; V = V or V
IL; O
I
IH
= 2.7V; V = V or V ; I = 12mA
0.40
0.20
0.55
"5
I
IH
IL
O
= 3.0V; V = V or V ; I = 100µA
V
OL
I
IH
IL
O
O
= 3.0V; V = V or V
I
= 24mA
Not for I/O pins
I
IH
IL;
I
Input leakage current
= 3.6V; V = 5.5V or GND
"0.1
"0.1
0.1
µA
µA
µA
µA
µA
I
I
I
/I
Input current for common I/O pins
3-State output OFF-state current
Power off leakage supply
Quiescent supply current
= 3.6V; V = 5.5V or GND
"15
"5
IHZ ILZ
I
I
= 3.6V; V = V or V ; V = 5.5V or GND
I IH IL O
OZ
I
off
= 0.0V; V or V = 5.5V
"10
10
I
O
I
= 3.6V; V = V or GND; I = 0
0.1
5
CC
I
CC
O
Additional quiescent supply
current per input pin
∆I
CC
V
CC
= 2.7V to 3.6V; V = V –0.6V; I = 0
500
µA
I
CC
O
NOTES:
All typical values are at V = 3.3V and T
1
= 25°C.
amb
CC
AC CHARACTERISTICS
GND = 0 V; t = t v 2.5 ns; C = 50 pF; R = 500W
r
f
L
L
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V ±0.3V
V
CC
= 2.7V
V = 1.2V
CC
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
TYP
Propagation delay
CP , CP to A , B
n
t
/t
Figures 1, 4
Figures 3, 4
Figures 3, 4
Figure 1
1.5
4.1
7.6
7.6
6.6
–
1.5
4.4
4.7
3.8
1.5
–
8.6
16
16
8
ns
ns
PHL PLH
BA
AB
n
3-state output enable time
OE , OE , to A , B
t
t
t
1.5
1.5
3.0
2.0
2.0
1.5
1.5
100
3.9
3.4
1.5
–0.5
0.5
0.6
0
1.5
1.5
3.0
2.0
2.0
1.5
1.5
80
8.6
7.6
–
PZH/ PZL
BA
AB
n
n
3-state output disable time
OE , OE , to A , B
t
ns
PHZ/ PLZ
BA
AB
n
n
CP , CP pulse width,
AB
BA
t
–
ns
w
HIGH or LOW
Set-up time HIGH or LOW
t
t
Figure 2
–
–
–
ns
su
su
A , B to CP , CP
n
n
AB
BA
Set-up time, HIGH or LOW
Figure 2
–
–
–
–
ns
CE , CE to CP , CP
AB
BA
AB
BA
Hold time
t
Figure 2
–
–
–
–
ns
h
h
A , B to CP , CP
n
n
AB
BA
Hold time
CE , CE to CP , CP
t
Figure 2
–
–
–
–
ns
AB
BA
AB
BA
Maximum clock pulse
frequency
f
Figure 2
150
–
–
–
–
MHz
max
NOTE:
These typical values are at V = 3.3V and T
= 25°C.
amb
CC
5
1998 Jul 29
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
AC WAVEFORMS
TEST CIRCUIT
V
V
V
V
= 0.6 V at V = 1.2 V
M
CC
S
1
2 x V
Open
CC
= 1.0 V at V = 2.0 V
V
M
CC
CC
= 1.5 V at V = 3.0 V
M
CC
GND
and V are the typical output voltage drop that occur with the
OL
OH
500Ω
500Ω
V
V
O
I
3-State output load.
PULSE
D.U.T.
GENERATOR
1/f
max
50pF
C
L
R
T
V
I
CP
INPUT
GND
XX
V
M
Test
/t
S
1
t
W
V
V
CC
I
t
Open
2 x V
CC
PLH PHL
t
t
PLH
t 2.7V
2.7V – 3.6V
V
t
/t
PHL
CC
PLZ PZL
V
OH
2.7V
t
/t
GND
PHZ PZH
A , B
n
n
SY00003
V
M
OUTPUT
V
Figure 4. Load circuitry for switching times.
OL
SV01720
Figure 1. Clock input (CP , CP ) to output (B , A )
BA
AB
n
n
propagation delays, the clock pulse width
and the maximum clock frequency.
V
I
A , B , CE
nn
n
n
V
M
INPUT
GND
t
h
t
h
t
su
t
su
V
I
V
CP INPUT
XX
M
GND
SV01721
Figure 2. Set-up and hold times for the A , B and CE inputs.
n
n
nn
NOTE:
The shaded areas indicate when the input is permitted to
change for predictable output performance
V
I
V
CP INPUT
XX
M
GND
t
t
PZL
PLZ
V
CC
OUTPUT
LOW–to–OFF
OFF–to–LOW
V
M
V
Y
V
OL
t
PZH
t
PHZ
V
OH
V
X
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
V
M
GND
outputs
enabled
outputs
disabled
outputs
enabled
SV01722
Figure 3. 3-State enable and disable times.
6
1998 Jul 29
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
SO24: plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
7
1998 Jul 29
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm
SOT340-1
8
1998 Jul 29
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm
SOT355-1
9
1998 Jul 29
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
NOTES
10
1998 Jul 29
Philips Semiconductors
Product specification
Octal registered tranceiver with 5-volt tolerant
inputs/ouputs (3-State)
74LVC2952A
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: 08-98
9397-750-04524
Document order number:
Philips
Semiconductors
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74LVC2952DB-T
IC LVC/LCX/Z SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO24, Bus Driver/Transceiver
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