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MC74LVXC3245DWR2

P1-P3P4-P6P7-P9
© Semiconductor Components Industries, LLC, 2008
June, 2008 − Rev. 5
1 Publication Order Number:
MC74LVXC3245/D
MC74LVXC3245
Configurable Dual Supply
Octal Transceiver
with 3−State Outputs for 3 V Systems
The 74LVXC3245 is a 24−pin dual−supply, octal configurable
voltage interface transceiver especially well suited for PCMCIA and
other real time configurable I/O applications. The V
CCA
pin accepts a
3.0 V supply level; the A port is a dedicated 3.0 V port. The V
CCB
pin
accepts a 3.0 V−to−5.0 V supply level. The B port is configured to
track the V
CCB
supply level. A 5.0 V level on the V
CCB
pin will
configure the I/O pins at a 5.0 V level and a 3.0 V V
CCB
will configure
the I/O pins at a 3.0 V level. The A port interfaces with a 3.0 V host
system and the B port to the card slots. This device will allow the
V
CCB
voltage source pin and I/O pins on the B port to float when OE is
High. This feature is necessary to buffer data to and from a PCMCIA
socket that permits PCMCIA cards to be inserted and removed during
normal operation. The Transmit/Receive (T/R
) input determines the
direction of data flow. Transmit (active−High) enables data from the A
port to B port. Receive (active−Low) enables data from the B port to
the A port.
Features
• Bidirectional Interface Between 3.0 V and 3.0 V/5.0 V Buses
• Control Inputs Compatible with TTL Level
• Outputs Source/Sink Up to 24 mA
• Guaranteed Simultaneous Switching Noise Level and Dynamic
Threshold Performance
• Available in SOIC and TSSOP Packages
• Flexible V
CCB
Operating Range
• Allows B Port and V
CCB
to Float Simultaneously When OE is High
• Functionally Compatible With the 74 Series 245
• Pb−Free Packages are Available*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
MARKING
DIAGRAMS
SOIC−24
DW SUFFIX
CASE 751E
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
ORDERING INFORMATION
1
24
LVXC
3245G
ALYW
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G=Pb−Free Package
LVXC3245
AWLYYWWG
1
24
1
24
1
24
TSSOP−24
DT SUFFIX
CASE 948H
MC74LVXC3245
http://onsemi.com
2
B0
OE
22
T/R 2
A0
B1
A1
B2
A2
B3
A3
B4
A4
B5
A5
B6
A6
B7
A7
3
4
5
6
7
8
9
10
21
20
19
18
17
16
15
14
Figure 1. 24−Lead Pinout (Top View)
2324 22 21 20 19 18
21 34567
V
CCB
17
8
16
9
15
10
NC OE
B0 B1 B2 B3 B4 B5 B6
V
CCA
T/R A0 A1 A2 A3 A4 A5 A6 A7
14
11
13
12
B7 GND
GND GND
Figure 2. Logic Diagram
PIN NAMES
Function
Output Enable Input
Transmit/Receive Input
Side A 3−State Inputs or 3−State Outputs
Side B 3−State Inputs or 3−State Outputs
Pins
OE
T/R
A0−A7
B0−B7
INPUTS
OPERATING MODE
Non−Inverting
OE T/R
L L B Data to A Bus
L H A Data to B Bus
H X Z
H = High Voltage Level; L = Low Voltage Level; Z = High Impedance State; X = High or Low Voltage Level
and Transitions are Acceptable; for I
CC
reasons, Do Not Float Inputs
MC74LVXC3245
http://onsemi.com
3
MAXIMUM RATINGS
Symbol Parameter Value Condition Unit
V
CCA
,
V
CCB
DC Supply Voltage −0.5 to +7.0 V
V
I
DC Input Voltage OE, T/R −0.5 to V
CCA
+0.5 V
V
I/O
DC Input/Output Voltage An −0.5 to V
CCA
+0.5 V
Bn −0.5 to V
CCB
+0.5 V
I
IK
DC Input Diode Current OE, T/R ±20 V
I
< GND mA
I
OK
DC Output Diode Current ±50 V
O
< GND; V
O
> V
CC
mA
I
O
DC Output Source/Sink Current ±50 mA
I
CC
,
I
GND
DC Supply Current Per Output Pin
Maximum Current
±50
±200
mA
T
STG
Storage Temperature Range −65 to +150 °C
DC Latchup Source/Sink Current ±300 mA
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
V
CCA
,
V
CCB
Supply Voltage (V
CCA
≤ V
CCB
)V
CCA
V
CCB
2.3
3.0
3.6
5.5
V
V
I
Input Voltage OE, T/R 0 V
CCA
V
V
I/O
Input/Output Voltage An
Bn
0
0
V
CCA
V
CCB
V
T
A
Operating Free−Air Temperature −40 +85 °C
Dt/DV
Minimum Input Edge Rate
V
IN
from 30% to 70% of V
CC
; V
CC
at 3.0 V, 4.5 V, 5.5 V
0 8 ns/V
DC ELECTRICAL CHARACTERISTICS
T
A
= 25°C T
A
= −40 to +85°C
Symbol Parameter Condition V
CCA
V
CCB
Typ Guaranteed Limits Unit
V
IHA
Minimum HIGH Level
Input Voltage
An
OE
T/R
V
OUT
≤ 0.1 V
or
≥ V
CC
− 0.1 V
2.3
3.0
3.6
3.0
3.6
5.5
2.0
2.0
2.0
2.0
2.0
2.0
V
V
IHB
Bn
2.3
3.0
3.6
3.0
3.6
5.5
2.00
2.00
3.85
2.00
2.00
3.85
V
V
ILA
Maximum LOW Level
Input Voltage
An
OE
T/R
V
OUT
≤ 0.1 V
or
≥ V
CC
− 0.1 V
2.3
3.0
3.6
3.0
3.6
5.5
0.8
0.8
0.8
0.8
0.8
0.8
V
V
ILB
Bn
2.3
3.0
3.6
3.0
3.6
5.5
0.80
0.80
1.65
0.80
0.80
1.65
V
V
OHA
Minimum HIGH Level
Output Voltage
I
OUT
= −100 mA
I
OH
= −12 mA
I
OH
= −24 mA
I
OH
= −12 mA
I
OH
= −24 mA
3.0
3.0
3.0
2.3
2.3
3.0
3.0
3.0
3.0
4.5
2.99
2.85
2.65
2.50
2.30
2.90
2.56
2.35
2.30
2.10
2.90
2.46
2.25
2.20
2.00
V
V
OHB
I
OUT
= −100 mA
I
OH
= −12 mA
I
OH
= −24 mA
I
OH
= −24 mA
3.0
3.0
3.0
3.0
3.0
3.0
3.0
4.5
2.99
2.85
2.65
4.25
2.90
2.56
2.35
3.86
2.90
2.46
2.25
3.76
V
P1-P3P4-P6P7-P9

MC74LVXC3245DWR2

Mfr. #:
Buy MC74LVXC3245DWR2
Manufacturer:
ON Semiconductor
Description:
IC TRNSLTR BIDIRECTIONAL 24SOIC
Lifecycle:
New from this manufacturer.
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