ON MC74LCX16245 Low−voltage cmos 16−bit transceiver with 5 v−tolerant inputs and outputs (3−state, non−inverting) Datasheet

MC74LCX16245
Low−Voltage CMOS
16−Bit Transceiver
With 5 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
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The MC74LCX16245 is a high performance, non−inverting 16−bit
transceiver operating from a 2.3 to 3.6 V supply. The device is byte
controlled. Each byte has separate Output Enable inputs which can be
tied together for full 16−bit operation. High impedance TTL
compatible inputs significantly reduce current loading to input drivers
while TTL compatible outputs offer improved switching noise
performance. A VI specification of 5.5 V allows MC74LCX16245
inputs to be safely driven from 5.0 V devices. The MC74LCX16245 is
suitable for memory address driving and all TTL level bus oriented
transceiver applications.
The 4.5 ns maximum propagation delays support high performance
applications. Current drive capability is 24 mA at both A and B ports.
The Transmit/Receive (T/Rn) inputs determine the direction of data
flow through the bidirectional transceiver. Transmit (active−HIGH)
enables data from A ports to B ports; Receive (active−LOW) enables
data from B to A ports. The Output Enable inputs (OEn), when HIGH,
disable both A and B ports by placing them in a HIGH Z condition.
TSSOP−48
DT SUFFIX
CASE 1201
48
1
MARKING DIAGRAM
48
Features
•
•
•
•
•
•
•
•
•
•
•
•
Designed for 2.3 to 3.6 V VCC Operation
4.5 ns Maximum tpd
5.0 V Tolerant − Interface Capability With 5.0 V TTL Logic
Supports Live Insertion and Withdrawal
IOFF Specification Guarantees High Impedance When VCC = 0 V
LVTTL Compatible
LVCMOS Compatible
24 mA Balanced Output Sink and Source Capability
Near Zero Static Supply Current in All Three Logic States (20 mA)
Substantially Reduces System Power Requirements
Latchup Performance Exceeds 500 mA
ESD Performance: Human Body Model >2000 V;
Machine Model >200 V
These are Pb−Free Devices*
LCX16245G
AWLYYWW
1
A
WL
YY
WW
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2005
August, 2005 − Rev. 7
1
Publication Order Number:
MC74LCX16245/D
MC74LCX16245
T/R1 1
B0 2
B1 3
GND 4
Pins
47 A0
45 GND
44 A2
B3 6
43 A3
VCC 7
42 VCC
B4 8
41 A4
B5 9
40 A5
38 A6
B7 12
37 A7
B8 13
36 A8
B9 14
35 A9
GND 15
34 GND
B10 16
33 A10
B11 17
32 A11
VCC 18
31 VCC
B12 19
30 A12
B13 20
29 A13
GND 21
28 GND
B14 22
27 A14
B15 23
26 A15
T/R2 24
25 OE2
Output Enable Inputs
Transmit/Receive Inputs
Side A Inputs or 3−State Outputs
Side B Inputs or 3−State Outputs
T/R1 1
39 GND
B6 11
Function
OEn
T/Rn
A0 − A15
B0 − B15
46 A1
B2 5
GND 10
Table 1. PIN NAMES
48 OE1
OE1
T/R2
48
24
OE2
B0:7
A0:7
25
B8:15
A8:15
One of Eight
Figure 2. Logic Diagram
Figure 1. Pinout: 48−Lead (Top View)
TRUTH TABLE
Inputs
OE1
H
L
Z
X
Inputs
T/R1
Outputs
OE2
L
L
Bus B0:7 Data to Bus A0:7
L
H
Bus A0:7 Data to Bus B0:7
H
X
High Z State on A0:7, B0:7
=
=
=
=
T/R2
Outputs
L
L
Bus B8:15 Data to Bus A8:15
L
H
Bus A8:15 Data to Bus B8:15
H
X
High Z State on A8:15, B8:15
High Voltage Level
Low Voltage Level
High Impedance State
High or Low Voltage Level and Transitions Are Acceptable; for ICC reasons, DO NOT FLOAT Inputs
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MC74LCX16245
ORDERING INFORMATION
Package
Shipping†
MC74LCX16245DT
TSSOP−48*
39 Units / Rail
MC74LCX16245DTG
TSSOP−48*
39 Units / Rail
MC74LCX16245DTR2
TSSOP−48*
2500 / Tape & Reel
M74LCX16245DTR2G
TSSOP−48*
2500 / Tape & Reel
Device
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently Pb−Free.
MAXIMUM RATINGS
Symbol
VCC
Parameter
Value
DC Supply Voltage
Condition
Unit
−0.5 to +7.0
V
V
VI
DC Input Voltage
−0.5 ≤ VI ≤ +7.0
VO
DC Output Voltage
−0.5 ≤ VO ≤ +7.0
Output in 3−State
−0.5 ≤ VO ≤ VCC + 0.5
Output in HIGH or LOW State. (Note 1)
V
IIK
DC Input Diode Current
−50
VI < GND
mA
IOK
DC Output Diode Current
−50
VO < GND
mA
+50
VO > VCC
mA
V
IO
DC Output Source/Sink Current
±50
mA
ICC
DC Supply Current Per Supply Pin
±100
mA
IGND
DC Ground Current Per Ground Pin
±100
mA
TSTG
Storage Temperature Range
−65 to +150
°C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. IO absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Supply Voltage
Operating
Data Retention Only
Min
Typ
Max
Unit
2.0
1.5
2.5, 3.3
2.5, 3.3
3.6
3.6
V
0
5.5
V
0
0
VCC
5.5
V
VI
Input Voltage
VO
Output Voltage
IOH
HIGH Level Output Current
VCC = 3.0 V − 3.6 V
VCC = 2.7 V − 3.0 V
VCC = 2.3 V − 2.7 V
− 24
− 12
−8
mA
IOL
LOW Level Output Current
VCC = 3.0 V − 3.6 V
VCC = 2.7 V − 3.0 V
VCC = 2.3 V − 2.7 V
+ 24
+ 12
+8
mA
TA
Operating Free−Air Temperature
Dt/DV
(HIGH or LOW State)
(3−State)
Input Transition Rise or Fall Rate, VIN from 0.8 V to 2.0 V, VCC = 3.0 V
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3
−40
+85
°C
0
10
ns/V
MC74LCX16245
DC ELECTRICAL CHARACTERISTICS
TA = −40°C to +85°C
Symbol
VIH
VIL
VOH
VOL
Condition
Min
2.3 V ≤ VCC ≤ 2.7 V
1.7
2.7 V ≤ VCC ≤ 3.6 V
2.0
Characteristic
HIGH Level Input Voltage (Note 2)
LOW Level Input Voltage (Note 2)
HIGH Level Output Voltage
LOW Level Output Voltage
Max
V
2.3 V ≤ VCC ≤ 2.7 V
0.7
2.7 V ≤ VCC ≤ 3.6 V
0.8
2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 mA
VCC − 0.2
VCC = 2.3 V; IOH = −8 mA
1.8
VCC = 2.7 V; IOH = −12 mA
2.2
VCC = 3.0 V; IOH = −18 mA
2.4
VCC = 3.0 V; IOH = −24 mA
2.2
Unit
V
V
2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 mA
0.2
VCC = 2.3 V; IOL= 8 mA
0.6
VCC = 2.7 V; IOL= 12 mA
0.4
VCC = 3.0 V; IOL = 16 mA
0.4
VCC = 3.0 V; IOL = 24 mA
0.55
V
II
Input Leakage Current
2.3 V ≤ VCC ≤ 3.6 V; 0 V ≤ VI ≤ 5.5 V
±5.0
mA
IOZ
3−State Output Current
2.3 ≤ VCC ≤ 3.6 V; 0V ≤ VO ≤ 5.5 V;
VI = VIH or V IL
±5.0
mA
IOFF
Power−Off Leakage Current
VCC = 0 V; VI or VO = 5.5 V
10
mA
ICC
Quiescent Supply Current
2.3 ≤ VCC ≤ 3.6 V; VI = GND or VCC
20
mA
2.3 ≤ VCC ≤ 3.6 V; 3.6 ≤ VI or VO ≤ 5.5 V
±20
mA
2.3 ≤ VCC ≤ 3.6 V; VIH = VCC − 0.6 V
500
mA
DICC
Increase in ICC per Input
2. These values of VI are used to test DC electrical characteristics only.
AC CHARACTERISTICS tR = tF = 2.5 ns; RL = 500 W
TA = −40°C to +85°C
VCC = 3.3 V ± 0.3 V
CL = 50 pF
Symbol
Parameter
VCC = 2.7 V
CL = 50 pF
VCC = 2.5 V ± 0.2 V
CL = 30 pF
Waveform
Min
Max
Min
Max
Min
Max
Unit
tPLH
tPHL
Propagation Delay
Input to Output
1
1.5
1.5
4.5
4.5
1.5
1.5
5.2
5.2
1.5
1.5
5.4
5.4
ns
tPZH
tPZL
Output Enable Time to
High and Low Level
2
1.5
1.5
6.5
6.5
1.5
1.5
7.2
7.2
1.5
1.5
8.5
8.5
ns
tPHZ
tPLZ
Output Disable Time From
High and Low Level
2
1.5
1.5
6.4
6.4
1.5
1.5
6.9
6.9
1.5
1.5
7.7
7.7
ns
tOSHL
tOSLH
Output−to−Output Skew
(Note 3)
1.0
1.0
ns
3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH−to−LOW (tOSHL) or LOW−to−HIGH (tOSLH); parameter
guaranteed by design.
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MC74LCX16245
DYNAMIC SWITCHING CHARACTERISTICS
TA = +25°C
Symbol
Characteristic
Condition
Min
Typ
Max
Unit
VOLP
Dynamic LOW Peak Voltage
(Note 4)
VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V
0.8
0.6
V
V
VOLV
Dynamic LOW Valley Voltage
(Note 4)
VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V
−0.8
−0.6
V
V
4. Number of outputs defined as “n”. Measured with “n−1” outputs switching from HIGH−to−LOW or LOW−to−HIGH. The remaining output is
measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
Condition
Typical
Unit
CIN
Input Capacitance
VCC = 3.3 V, VI = 0 V or VCC
7
pF
CI/O
Input/Output Capacitance
VCC = 3.3 V, VI = 0 V or VCC
8
pF
CPD
Power Dissipation Capacitance
10 MHz, VCC = 3.3 V, VI = 0 V or VCC
20
pF
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MC74LCX16245
OEn,T/Rn
VCC
Vmi
VCC
Vmi
0V
tPHZ
tPZH
Vmi
An, Bn
VOH
VHZ
0V
tPHL
tPLH
Vmo
Vmo
An, Bn
VOH
tPZL
Vmo
Bn, An
VOL
tPLZ
An, Bn
WAVEFORM 1 − PROPAGATION DELAYS
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
Vmo
VLZ
VOL
WAVEFORM 2 − OUTPUT ENABLE AND DISABLE TIMES
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
Figure 3. AC Waveforms
Table 2. AC WAVEFORMS
VCC
Symbol
3.3 V ± 0.3 V
2.7 V
2.5 V + 0.2 V
Vmi
1.5 V
1.5 V
VCC / 2
Vmo
1.5 V
1.5 V
VCC / 2
VHZ
VOL + 0.3 V
VOL + 0.3 V
VOL + 0.15 V
VLZ
VOH − 0.3 V
VOH − 0.3 V
VOH − 0.15 V
VCC
R1
PULSE
GENERATOR
DUT
RT
CL
RL
Figure 4. Test Circuit
Table 3. TEST CIRCUIT
TEST
SWITCH
tPLH, tPHL
Open
tPZL, tPLZ
6 V at VCC = 3.3 0.3 V
6 V at VCC = 2.5 0.2 V
Open Collector/Drain tPLH and tPHL
6V
tPZH, tPHZ
CL =
CL =
RL =
RT =
GND
50 pF at VCC = 3.3 0.3 V or equivalent (includes jig and probe capacitance)
30 pF at VCC = 2.5 0.2 V or equivalent (includes jig and probe capacitance)
R1 = 500 W or equivalent
ZOUT of pulse generator (typically 50 W)
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6
6 V or VCC x 2
OPEN
GND
MC74LCX16245
PACKAGE DIMENSIONS
TSSOP−48
DT SUFFIX
CASE 1201−01
ISSUE A
48X
K REF
0.12 (0.005)
M
T U
S
V
S
T U
S
J J1
48
25
SECTION N−N
M
0.254 (0.010)
ÉÉÉ
ÇÇÇ
ÇÇÇ
ÉÉÉ
B
−U−
L
N
1
24
A
−V−
PIN 1
IDENT.
N
F
DETAIL E
D
C
M
0.25 (0.010)
−W−
0.076 (0.003)
−T− SEATING
PLANE
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS OR GATE
BURRS. MOLD FLASH OR GATE BURRS
SHALL NOT EXCEED 0.15 (0.006) PER SIDE.
4. DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN
EXCESS OF THE K DIMENSION AT MAXIMUM
MATERIAL CONDITION.
5. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
6. DIMENSIONS A AND B ARE TO BE
DETERMINED AT DATUM PLANE −W−.
K
K1
DETAIL E
G
H
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7
DIM
A
B
C
D
F
G
H
J
J1
K
K1
L
M
MILLIMETERS
MIN
MAX
12.40
12.60
6.00
6.20
−−−
1.10
0.05
0.15
0.50
0.75
0.50 BSC
0.37
−−−
0.09
0.20
0.09
0.16
0.17
0.27
0.17
0.23
7.95
8.25
0_
8_
INCHES
MIN
MAX
0.488
0.496
0.236
0.244
−−−
0.043
0.002
0.006
0.020
0.030
0.0197 BSC
0.015
−−−
0.004
0.008
0.004
0.006
0.007
0.011
0.007
0.009
0.313
0.325
0_
8_
MC74LCX16245
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
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For additional information, please contact your
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MC74LCX16245/D
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