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M74LCX16245DTR2G

P1-P3P4-P6P7-P7
© Semiconductor Components Industries, LLC, 2012
October, 2012 − Rev. 9
1 Publication Order Number:
MC74LCX16245/D
MC74LCX16245
Low-Voltage CMOS
16-Bit Transceiver
With 5 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
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 V
I
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/R
n) 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.
Features
• Designed for 2.3 to 3.6 V V
CC
Operation
• 4.5 ns Maximum t
pd
• 5.0 V Tolerant − Interface Capability With 5.0 V TTL Logic
• Supports Live Insertion and Withdrawal
• I
OFF
Specification Guarantees High Impedance When V
CC
= 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 Devices are Pb−Free and are RoHS Compliant
MARKING DIAGRAM
TSSOP−48
DT SUFFIX
CASE 1201
1
48
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
1
48
LCX16245G
AWLYYWW
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
ORDERING INFORMATION
http://onsemi.com
MC74LCX16245
http://onsemi.com
2
Figure 1. Pinout: 48−Lead (Top View)
481
OE1
T/R1
472
A0B0
463
A1B1
454
GNDGND
445
A2B2
436
A3B3
427
V
CC
V
CC
418
A4
B4
409
A5B5
3910
GNDGND
3811
A6B6
3712
A7B7
3613
A8B8
3514
A9B9
3415
GNDGND
3316
A10
B10
3217
A11B11
3118
V
CC
V
CC
3019
A12B12
2920
A13B13
2821
GNDGND
2722
A14B14
2623
A15B15
2524
OE2
T/R2
Table 1. PIN NAMES
Pins Function
OEn Output Enable Inputs
T/Rn Transmit/Receive Inputs
A0 − A15 Side A Inputs or 3−State Outputs
B0 − B15 Side B Inputs or 3−State Outputs
T/R1
A0:7
B0:7
One of Eight
OE1
T/R2
A8:15
B8:15
OE2
1
48
24
25
Figure 2. Logic Diagram
TRUTH TABLE
Inputs
Outputs
Inputs
Outputs
OE1 T/R1 OE2 T/R2
L L Bus B0:7 Data to Bus A0:7 L L Bus B8:15 Data to Bus A8:15
L H Bus A0:7 Data to Bus B0:7 L H Bus A8:15 Data to Bus B8:15
H X High Z State on A0:7, B0:7 H X High Z State on A8:15, B8:15
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
MC74LCX16245
http://onsemi.com
3
ORDERING INFORMATION
Device Package Shipping
†
MC74LCX16245DTG TSSOP−48* 39 Units / Rail
M74LCX16245DTR2G TSSOP−48* 2500 / Tape & Reel
†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 Parameter Condition Value Units
V
CC
DC Supply Voltage −0.5 to +7.0 V
V
I
DC Input Voltage −0.5 ≤ V
I
≤ +7.0 V
V
O
DC Output Voltage
Output in 3−State −0.5 ≤ V
O
≤ +7.0 V
Output in HIGH or LOW State. (Note 1) −0.5 ≤ V
O
≤ V
CC
+ 0.5 V
I
IK
DC Input Diode Current V
I
< GND −50 mA
I
OK
DC Output Diode Current
V
O
< GND −50 mA
V
O
> V
CC
+50 mA
I
O
DC Output Source/Sink Current ±50 mA
I
CC
DC Supply Current Per Supply Pin ±100 mA
I
GND
DC Ground Current Per Ground Pin ±100 mA
T
STG
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. I
O
absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Typ Max Units
V
CC
Supply Voltage
Operating
Data Retention Only
2.0
1.5
2.5, 3.3
2.5, 3.3
3.6
3.6
V
V
I
Input Voltage 0 5.5 V
V
O
Output Voltage
(HIGH or LOW State)
(3−State)
0
0
V
CC
5.5
V
I
OH
HIGH Level Output Current
V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
V
CC
= 2.3 V − 2.7 V
−24
−12
−8
mA
I
OL
LOW Level Output Current
V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
V
CC
= 2.3 V − 2.7 V
+24
+12
+8
mA
T
A
Operating Free−Air Temperature −40 +85 °C
Dt/DV
Input Transition Rise or Fall Rate, V
IN
from 0.8 V to 2.0 V, V
CC
= 3.0 V 0 10 ns/V
P1-P3P4-P6P7-P7

M74LCX16245DTR2G

Mfr. #:
Buy M74LCX16245DTR2G
Manufacturer:
ON Semiconductor
Description:
Bus Transceivers 1.8/2.5/3.3V 16-Bit Transceiver
Lifecycle:
New from this manufacturer.
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