INTEGRATED CIRCUITS
74LVT16543A
3.3V LVT 16-bit registered transceiver
(3-State)
Product specification
Supersedes data of 19
IC23 Data Handbook
1998 Feb 19
Philips Semiconductors
Product specification
3.3V 16-bit registered transceiver (3-State)
FEATURES
74LVT16543A
DESCRIPTION
• 16-bit universal bus interface
• 3-State buffers
• 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
The 74LVT16543A is a high-performance BiCMOS product
designed for VCC operation at 3.3V. The device can be used as two
8-bit transceivers or one 16-bit transceiver.
The 74LVT16543A contains two sets of eight D-type latches, with
separate control pins for each set. Using data flow from A to B as an
example, when the A-to-B Enable (nEAB) input and the A-to-B Latch
Enable (nLEAB) input are Low, the A-to-B path is transparent.
resistors to hold unused inputs
• Live insertion/extraction permitted
• Power-up 3-State
• Power-up reset
• 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
A subsequent Low-to-High transition of the nLEAB signal puts the A
data into the latches where it is stored and the B outputs no longer
change with the A inputs. With nEAB and nOEAB both Low, the
3-State B output buffers are active and display the data present at
the outputs of the A latches.
Control of data flow from B to A is similar, but using the nEBA,
nLEBA, and nOEBA inputs.
and 200V per Machine Model
Active bus-hold circuitry is provided to hold unused or floating data
inputs at a valid logic level.
QUICK REFERENCE DATA
SYMBOL
CONDITIONS
Tamb = 25°C; GND = 0V
PARAMETER
tPLH
tPHL
Propagation delay
nAx to nBx or nBx to nAx
CL = 50pF;
VCC = 3.3V
TYPICAL
UNIT
2.2
ns
CIN
Input capacitance control pins
VI = 0V or 3.0V
3
pF
CI/O
I/O pin capacitance
Outputs disabled; VI/O = 0V or 3.0V
9
pF
ICCZ
Total supply current
Outputs disabled; VCC = 3.6V
70
µA
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
56-Pin Plastic SSOP Type III
–40°C to +85°C
74LVT16543A DL
VT16543A DL
SOT371-1
56-Pin Plastic TSSOP Type II
–40°C to +85°C
74LVT16543A DGG
VT16543A DGG
SOT364-1
LOGIC SYMBOL (IEEE/IEC)
56
1EN3 (BA)
29
7EN9 (BA)
54
55
G1
31
G7
1C5
7C11
1
3
2EN4 (AB)
30
28
G2
26
G8
2
2C6
27
8C12
5
∇3
5D
15
∇9
11 D
6D
4∇
12 D
10 ∇
52
8EN10 (AB)
42
6
51
16
41
8
49
17
40
9
48
19
38
10
47
20
37
12
45
21
36
13
44
23
34
14
43
24
33
SW00151
1998 Feb 19
2
853–1764 18986
Philips Semiconductors
Product specification
3.3V 16-bit registered transceiver (3-State)
PIN CONFIGURATION
74LVT16543A
LOGIC SYMBOL
1OEAB
1
56
1OEBA
1LEAB
2
55
1LEBA
1EAB
3
54
1EBA
GND
4
53
GND
1A0
5
52
1B0
1A1
6
51
1B1
VCC
7
50
VCC
1A2
8
49
1B2
1A3
9
48
1B3
1A4
10
47
1B4
GND
11
46
GND
1A5
12
45
1B5
1A6
13
44
1B6
1A7
14
43
1B7
2A0
15
42
2B0
2A1
16
41
2B1
5
6
8
9
10
12
13
14
1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7
3
1EAB
54
1EBA
1OEAB
1
2
1LEAB
1OEBA
56
55
1LEBA
1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7
2A2
17
40
2B2
GND
18
39
GND
2A3
19
38
2B3
52
51
49
48
47
45
44
43
15
16
17
19
20
21
23
24
2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7
2A4
20
37
2B4
2A5
21
36
2B5
VCC
22
35
VCC
2A6
23
34
2B6
2A7
24
33
2B7
GND
25
32
GND
2EAB
26
31
2EBA
2LEAB
27
30
2LEBA
2OEAB
28
29
2OEBA
26
2EAB
31
2EBA
2OEAB
28
27
2LEAB
2OEBA
29
30
2LEBA
2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7
42
41
40
38
37
36
34
33
SH00038
SH00037
PIN DESCRIPTION
PIN NUMBER
SYMBOL
5, 6, 8, 9, 10, 12, 13, 14
15, 16, 17, 19, 20, 21, 23, 24
1A0 – 1A7,
2A0 – 2A7
A Data inputs/outputs
52, 51, 49, 48, 47, 45, 44, 43
42, 41, 40,38, 37, 36, 34, 33
1B0 – 1B7,
2B0 – 2B7
B Data inputs/outputs
1, 56
28, 29
1OEAB, 1OEBA,
2OEAB, 2OEBA
3, 54
26, 31
1EAB, 1EBA,
2EAB, 2EBA
2, 55
27, 30
1LEAB, 1LEBA,
2LEAB, 2LEBA
4, 11, 18, 25, 32, 39, 46, 53
GND
Ground (0V)
7, 22, 35, 50
VCC
Positive supply voltage
1998 Feb 19
NAME AND FUNCTION
A to B / B to A Output Enable inputs (active-Low)
A to B / B to A Enable inputs (active-Low)
A to B / B to A Latch Enable inputs (active-Low)
3
Philips Semiconductors
Product specification
3.3V 16-bit registered transceiver (3-State)
74LVT16543A
LOGIC DIAGRAM
DETAIL A
D
nB0
Q
LE
nA0
Q
D
LE
nA1
nB1
nA2
nB2
nA3
nB3
DETAIL A X 7
nA4
nB4
nA5
nB5
nA6
nB6
nA7
nB7
nOEBA
nOEAB
nEBA
nEAB
nLEBA
nLEAB
SH00039
FUNCTION TABLE
INPUTS
H =
h =
L =
l =
X =
↑ =
NC=
Z =
OUTPUTS
STATUS
nOEXX
nEXX
nLEXX
nAx or nBx
nBx or nAx
H
X
X
X
Z
Disabled
X
H
X
X
Z
Disabled
L
L
↑
↑
L
L
h
l
Z
Z
Disabled + Latch
L
L
L
L
↑
↑
h
l
H
L
Latch + Display
L
L
L
L
L
L
H
L
H
L
Transparent
L
L
H
X
NC
Hold
High voltage level
High voltage level one set-up time prior to the Low-to-High transition of nLEXX or nEXX (XX = AB or BA)
Low voltage level
Low voltage level one set-up time prior to the Low-to-High transition of nLEXX or nEXX (XX = AB or BA)
Don’t care
Low-to-High transition of nLEXX or nEXX (XX = AB or BA)
No change
High impedance or “off ” state
1998 Feb 19
4
Philips Semiconductors
Product specification
3.3V 16-bit registered transceiver (3-State)
74LVT16543A
ABSOLUTE MAXIMUM RATINGS1, 2
PARAMETER
SYMBOL
VCC
IIK
RATING
UNIT
–0.5 to +4.6
V
–50
mA
–0.5 to +7.0
V
VO < 0
–50
mA
Output in Off or High state
–0.5 to +7.0
V
Output in Low state
128
Output in High state
–64
DC supply voltage
DC input diode current
VI < 0
voltage3
VI
DC input
IOK
DC output diode current
VOUT
CONDITIONS
DC output
voltage3
IOUT
O
DC output current
Tstg
Storage temperature range
mA
–65 to +150
°C
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 negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
VCC
PARAMETER
UNIT
DC supply voltage
MIN
MAX
2.7
3.6
V
0
5.5
V
VI
Input voltage
VIH
High-level input voltage
VIL
Input voltage
0.8
V
IOH
High-level output current
–32
mA
Low-level output current
32
Low-level output current; current duty cycle ≤ 50%; f ≥ 1kHz
64
IOL
O
∆t/∆v
Input transition rise or fall rate; Outputs enabled
Tamb
Operating free-air temperature range
1998 Feb 19
2.0
mA
–40
5
V
10
ns/V
+85
°C
Philips Semiconductors
Product specification
3.3V 16-bit registered transceiver (3-State)
74LVT16543A
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40°C to +85°C
MIN
VIK
Input clamp voltage
VCC = 2.7V; IIK = –18mA
VCC = 2.7 to 3.6V; IOH = –100µA
VOH
VOL
VRST
High-level output voltage
Low-level output voltage
Power-up output low voltage5
Output off current
IHOLD
Bus H
B
Hold
ld currentt
A or B outputs7
2.4
2.54
VCC = 3.0V; IOH = –32mA
2.0
2.36
0.07
0.2
VCC = 2.7V; IOL = 24mA
0.3
0.5
VCC = 3.0V; IOL = 16mA
0.2
0.4
VCC = 3.0V; IOL = 32mA
0.3
0.5
VCC = 3.0V; IOL = 64mA
0.35
0.55
VCC = 3.6V; IO = 1mA; VI = GND or VCC
0.13
0.55
0.1
±1
0.1
10
0.5
20
0.5
10
Control pins
VCC = 3.6V; VI = 5.5V
I/O Data
pins4
VCC = 3.6V; VI = 0
1.0
–5
VCC = 0V; VI or VO = 0 to 4.5V
1.0
±100
IPU/PD
VCC = 3V; VI = 2.0V
–75
–140
VCC = 0V to 3.6V; VCC = 3.6V
±500
V
V
µA
µA
µA
VO = 5.5V; VCC = 3.0V
45
125
µA
Power up/down 3-State output
current3
VCC ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC;
OE/OE = Don’t care
35
±100
µA
VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0
0.07
0.12
VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0
4.5
6
VCC = 3.6V; Outputs Disabled; VI = GND or VCC,
IO = 06
0.07
0.12
VCC = 3V to 3.6V; One input at VCC-0.6V,
Other inputs at VCC or GND
0.1
0.2
Quiescent supply current
ICCZ
∆ICC
130
V
Current into an output in the
High state when VO > VCC
ICCH
ICCL
75
UNIT
V
VCC = 2.7V; IOL = 100µA
VCC = 3V; VI = 0.8V
IEX
–1.2
VCC = 2.7V; IOH = –8mA
VCC = 3.6V; VI = VCC
IOFF
–0.85
VCC
VCC = 0 or 3.6V; VI = 5.5V
Input leakage current
MAX
VCC–0.2
VCC = 3.6V; VI = VCC or GND
II
TYP1
Additional supply current per
input pin2
mA
mA
NOTES:
1. All typical values are at VCC = 3.3V and .
2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND
3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 0.3V a
transition time of 100µsec is permitted. This parameter is valid for Tamb = 25°C only.
4. Unused pins at VCC or GND.
5. For valid test results, data must not be loaded into the flip-flops (or latches) after applying power.
6. ICCZ is measured with outputs pulled to VCC or GND.
7. This is the bus hold overdrive current required to force the input to the opposite logic state.
1998 Feb 19
6
Philips Semiconductors
Product specification
3.3V 16-bit registered transceiver (3-State)
74LVT16543A
AC CHARACTERISTICS
GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.
LIMITS
SYMBOL
PARAMETER
WAVEFORM
VCC = 3.3V ±0.3V
VCC = 2.7V
MIN
TYP1
MAX
MAX
UNIT
tPLH
tPHL
Propagation delay
nAx to nBx or nBx to nAx
2
1.0
1.0
2.2
2.2
3.7
3.7
4.4
4.4
ns
tPLH
tPHL
Propagation delay
nLEBA to nAx, nLEAB to nBx
1
2
1.5
1.5
2.7
2.7
4.8
4.8
6.2
6.2
ns
tPZH
tPZL
Output enable time
nOEBA to nAx, nOEAB to nBx
4
5
1.5
1.5
2.8
2.6
4.6
5.0
6.1
6.6
ns
tPHZ
tPLZ
Output disable time
nOEBA to nAx, nOEAB to nBx
4
5
2.0
2.0
3.1
3.2
5.2
4.6
5.7
4.7
ns
tPZH
tPZL
Output enable time
nEBA to nAx, nEAB to nBx
4
5
1.5
1.5
2.9
2.6
4.8
5.1
6.1
6.6
ns
tPHZ
tPLZ
Output disable time
nEBA to nAx, nEAB to nBx
4
5
2.0
2.0
3.1
3.2
5.1
4.3
5.7
4.5
ns
VCC = 2.7V
UNIT
NOTE:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
AC SETUP REQUIREMENTS
GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.
LIMITS
SYMBOL
PARAMETER
VCC = 3.3V ±0.3V
WAVEFORM
MIN
TYP
MIN
ts(H)
ts(L)
Setup time
nAx to nLEAB, nBx to nLEBA
3
0.8
1.0
0.4
0.1
0.5
1.5
ns
th(H)
th(L)
Hold time
nAx to nLEAB, nBx to nLEBA
3
1.0
1.2
0.2
0.4
0.5
1.3
ns
ts(H)
ts(L)
Setup time
nAx to nEAB, nBx to nEBA
3
0.7
1.3
0.1
0.1
0.4
1.5
ns
th(H)
th(L)
Hold time
nAx to nEAB, nBx to nEBA
3
1.2
1.3
0.2
0.4
0.8
1.4
ns
tW(L)
Latch enable pulse width, Low
3
1.8
1.0
1.8
ns
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
2.7V
VIN
VM
2.7V
VIN
VM
VM
VM
0V
tPHL
0V
tPLH
tPLH
VOH
VOUT
VM
VOH
VOUT
VM
VOL
VM
VM
VOL
SW00152
SW00153
Waveform 1. Propagation Delay For Inverting Output
1998 Feb 19
tPHL
Waveform 2. Propagation Delay For Non-Inverting Output
7
Philips Semiconductors
Product specification
3.3V 16-bit registered transceiver (3-State)
ÉÉÉ ÉÉÉÉÉÉÉ
ÉÉÉ
ÉÉÉ ÉÉÉÉÉÉÉ
ÉÉÉ
ÉÉÉ ÉÉÉÉÉÉÉ
ÉÉÉ
74LVT16543A
2.7V
nAx,
nBx
VM
VM
VM
2.7V
VM
nOEAB, nOEBA,
nEAB, nEBA
VM
0V
ts(H)
ts(L)
th(H)
0V
th(L)
tPZL
2.7V
nLEAB, nLEBA,
nEAB, nEBA
VM
tPLZ
3.0V
VM
tw(L)
VM
VM
nAx, nBx
0V
VOL
NOTE: The shaded areas indicate when the input is permitted
to change for predictable output performance.
SW00154
SW00156
Waveform 3. Data Setup and Hold Times and Latch Enable
Pulse Width
Waveform 5. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
2.7V
nOEAB, nOEBA,
nEAB, nEBA
VM
VM
0V
tPZH
tPHZ
VM
nAx, nBx
0V
SW00155
Waveform 4. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
TEST CIRCUIT AND WAVEFORMS
6V
VCC
VIN
VOUT
PULSE
GENERATOR
tW
90%
OPEN
RL
GND
10%
10%
0V
tTHL (tF)
CL
tTLH (tR)
tTLH (tR)
RL
tTHL (tF)
90%
POSITIVE
PULSE
Test Circuit for 3-State Outputs
SWITCH
tPHZ/tPZH
GND
tPLZ/tPZL
6V
tPLH/tPHL
open
VM
VM
10%
tW
0V
VM = 1.5V
Input Pulse Definition
INPUT PULSE REQUIREMENTS
DEFINITIONS
FAMILY
RL = Load resistor; see AC CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
AMP (V)
90%
10%
SWITCH POSITION
TEST
AMP (V)
VM
VM
NEGATIVE
PULSE
D.U.T.
RT
90%
74LVT16
Amplitude
Rep. Rate
tW
tR
2.7V
≤10MHz
500ns
≤2.5ns
tF
≤2.5ns
RT = Termination resistance should be equal to ZOUT of
pulse generators.
SW00003
1998 Feb 19
8
Philips Semiconductors Low Voltage Products
Product specification
3.3V LVT 16-bit registered transceiver (3-State)
SSOP56: plastic shrink small outline package; 56 leads; body width 7.5 mm
1998 Feb 19
9
74LVT16543A
SOT371-1
Philips Semiconductors Low Voltage Products
Product specification
3.3V LVT 16-bit registered transceiver (3-State)
TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1mm
1998 Feb 19
10
74LVT16543A
SOT364-1
Philips Semiconductors Low Voltage Products
Product specification
3.3V LVT 16-bit registered transceiver (3-State)
NOTES
1998 Feb 19
11
74LVT16543A
Philips Semiconductors
Product specification
3.3V LVT 16-bit registered transceiver (3-State)
74LVT16543A
Data sheet status
Data sheet
status
Product
status
Definition [1]
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.
Right to make changes — Philips Semiconductors reserves 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.
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:
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12
Date of release: 05-96
9397-750-03558
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