74HC245DTR2G

© Semiconductor Components Industries, LLC, 2007
March, 2007 Rev. 1
1 Publication Order Number:
74HC245/D
74HC245
Octal 3−State Noninverting
Bus Transceiver
HighPerformance SiliconGate CMOS
The 74HC245 is identical in pinout to the LS245. The device inputs
are compatible with standard CMOS outputs; with pullup resistors,
they are compatible with LSTTL outputs.
The HC245 is a 3state noninverting transceiver that is used for
2way asynchronous communication between data buses. The device
has an activelow Output Enable pin, which is used to place the I/O
ports into highimpedance states. The Direction control determines
whether data flows from A to B or from B to A.
Features
Output Drive Capability: 15 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 mA
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
ESD Performance: HBM > 2000 V; Machine Model > 200 V
Chip Complexity: 308 FETs or 77 Equivalent Gates
This is a PbFree Device
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1
20
MARKING
DIAGRAMS
HC
245
ALYW G
G
TSSOP20
DT SUFFIX
CASE 948E
1
20
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
ORDERING INFORMATION
HC245 = Device Code
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
74HC245
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2
Figure 1. Pin Assignment
A5
A3
A2
A1
DIRECTION
GND
A8
A7
A6
A4
5
4
3
2
1
10
9
8
7
6
14
15
16
17
18
19
20
11
12
13
B3
B2
B1
OUTPUT ENABLE
V
CC
B8
B7
B6
B5
B4
A
DATA
PORT
A8
A7
A6
A5
A3
A4
A2
A1
9
8
7
6
5
4
3
2
DIRECTION
OUTPUT ENABLE
1
19
PIN 10 = GND
PIN 20 = V
CC
18
17
16
15
14
13
12
11
B1
B2
B3
B4
B5
B6
B7
B8
B
DATA
PORT
Figure 2. Logic Diagram
FUNCTION TABLE
Control Inputs
Operation
Output
Enable
Direction
L L Data Transmitted from Bus B to Bus A
L H Data Transmitted from Bus A to Bus B
H X Buses Isolated (HighImpedance State)
X = don’t care
ORDERING INFORMATION
Device Package Shipping
74HC245DTR2G TSSOP20* 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 PbFree.
74HC245
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3
MAXIMUM RATINGS (Note 1)
Symbol
Parameter Value Unit
V
CC
DC Supply Voltage *0.5 to )7.0 V
V
IN
DC Input Voltage *0.5 to V
CC
)0.5 V
V
OUT
DC Output Voltage (Note 2) *0.5 to V
CC
)0.5 V
I
IK
DC Input Diode Current $20 mA
I
OK
DC Output Diode Current $35 mA
I
OUT
DC Output Sink Current $35 mA
I
CC
DC Supply Current per Supply Pin $75 mA
I
GND
DC Ground Current per Ground Pin $75 mA
T
STG
Storage Temperature Range *65 to )150
_C
T
L
Lead Temperature, 1 mm from Case for 10 Seconds 260
_C
T
J
Junction Temperature Under Bias )150
_C
q
JA
Thermal Resistance TSSOP 128
_C/W
P
D
Power Dissipation in Still Air at 85_C TSSOP
450 mW
MSL Moisture Sensitivity Level 1
F
R
Flammability Rating Oxygen Index: 30% to 35% UL 94 V0 @ 0.125 in
V
ESD
ESD Withstand Voltage Human Body Model (Note 3)
Machine Model (Note 4)
u2000
u200
V
I
LATCHUP
Latchup Performance Above V
CC
and Below GND at 85_C (Note 5)
$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.
1. Measured with minimum pad spacing on an FR4 board, using 10 mmby1 inch, 20 ounce copper trace with no air flow.
2. I
O
absolute maximum rating must observed.
3. Tested to EIA/JESD22A114A.
4. Tested to EIA/JESD22A115A.
5. Tested to EIA/JESD78.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
V
CC
DC Supply Voltage (Referenced to GND) 2.0 6.0 V
V
in
, V
out
DC Input Voltage, Output Voltage (Referenced to GND) 0 V
CC
V
T
A
Operating Temperature, All Package Types –55 +125
_C
t
r
, t
f
Input Rise and Fall Time V
CC
= 2.0 V
(Figure 3) V
CC
= 4.5 V
V
CC
= 6.0 V
0
0
0
1000
500
400
ns

74HC245DTR2G

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
Bus Transceivers OCTAL 3ST NONINVERT BUS TRANSCEIVER
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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