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74FST3245DTR2のメーカーはONです、この部品の機能は「8-Bit Bus Switch」です。 |
部品番号 | 74FST3245DTR2 |
| |
部品説明 | 8-Bit Bus Switch | ||
メーカ | ON | ||
ロゴ | |||
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74FST3245
8−Bit Bus Switch
The ON Semiconductor 74FST3245 is an 8−bit, high performance
switch. The device is CMOS TTL compatible when operating between
4 and 5.5 Volts. The device exhibits extremely low RON and adds
nearly zero propagation delay. The device adds no noise or ground
bounce to the system.
The device consists of an 8−bit switch. Port A is connected to Port B
when OE is low. If OE is high, the switch is high Z.
Features
• RON t 4 W Typical
• Less Than 0.25 ns−Max Delay Through Switch
• Nearly Zero Standby Current
• No Circuit Bounce
• Control Inputs are TTL/CMOS Compatible
• Pin−For−Pin Compatible with QS3245, FST3245, CBT3245
• All Popular Packages: QSOP−20, TSSOP−20, SOIC−20
• All Devices in Package TSSOP are Inherently Pb−Free*
NC
A0
A1
A2
A3
A4
A5
A6
A7
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
Figure 1. 20−Lead Pinout
OE 19
A0 2
18 B0
A7 9
11 B7
Figure 2. Logic Diagram
TRUTH TABLE
Input OE
L
H
Function
Connect
Disconnect
*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, 2006
June, 2006 − Rev. 2
1
http://onsemi.com
20
1
SOIC−20
DW SUFFIX
CASE 751D
MARKING
DIAGRAMS
20
FST3245
AWLYYWW
1
20
1
TSSOP−20
DT SUFFIX
CASE 948E
20
FST
3245
ALYW
1
20
1
QSOP−20
QS SUFFIX
CASE 492A
20
FST3245
AWLYWW
1
A
L, WL
Y
W, WW
=
=
=
=
PIN NAMES
Pin
OE1, OE2
1A, 2A
1B, 2B
Assembly Location
Wafer Lot
Year
Work Week
Description
Bus Switch Enables
Bus A
Bus B
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
Publication Order Number:
74FST3245/D
1 Page 74FST3245
DC ELECTRICAL CHARACTERISTICS
VCC
Symbol
Parameter
Conditions
(V)
VIK Clamp Diode Resistance
IIN = −18mA
4.5
VIH High−Level Input Voltage
4.0 to 5.5
VIL Low−Level Input Voltage
4.0 to 5.5
II Input Leakage Current
0 v VIN v 5.5 V
5.5
IOZ OFF−STATE Leakage Current 0 v A, B v VCC
5.5
RON Switch On Resistance (Note 6) VIN = 0 V, IIN = 64 mA
4.5
VIN = 0 V, IIN = 30 mA
4.5
VIN = 2.4 V, IIN = 15 mA
4.5
VIN = 2.4 V, IIN = 15 mA
4.0
ICC Quiescent Supply Current
VIN = VCC or GND, IOUT = 0
5.5
DICC Increase In ICC per Input
One input at 3.4 V, Other inputs at VCC or GND
5.5
*Typical values are at VCC = 5.0 V and TA = 25_C.
6. Measured by the voltage drop between A and B pins at the indicated current through the switch.
TA = −40_C to )85_C
Min Typ* Max
−1.2
2.0
0.8
$1.0
$1.0
47
47
8 15
11 20
3
2.5
Unit
V
V
V
mA
mA
W
mA
mA
AC ELECTRICAL CHARACTERISTICS
Limits
Symbol
Parameter
Conditions
Figures
TA = −40_C to )85_C
VCC = 4.5 to 5.5 V
VCC = 4.0 V
Min Max Min Max
Unit
tPHL,
tPLH
Prop Delay Bus to Bus
(Note 7)
VI = OPEN
3 and 4 0.25 0.25 ns
tPZH,
tPZL
Output Enable Time
VI = 7 V for tPZL
VI = OPEN for tPZH
3 and 4
1.5
5.9
6.4 ns
tPHZ,
tPLZ
Output Disable Time
VI = 7 V for tPLZ
VI = OPEN for tPHZ
3 and 4
1.5
6.0
5.7 ns
7. This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the
typical On resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
CAPACITANCE (Note 8)
Symbol
Parameter
Conditions
CIN Control Pin Input Capacitance
VCC = 5.0 V
CI/O Input/Output Capacitance
VCC, OE = 5.0 V
8. TA = )25_C, f = 1 MHz, Capacitance is characterized but not tested.
Typ Max Unit
3 pF
5 pF
ORDERING INFORMATION
Device Order Number
74FST3245DW
74FST3245DWR2
74FST3245DT
Package
SOIC−20
SOIC−20
TSSOP−20*
(Pb−Free)
Shipping†
38 Units / Rail
1000 Units / Tape & Reel
75 Units / Rail
74FST3245DTR2
TSSOP−20*
(Pb−Free)
2500 Units / Tape & Reel
74FST3245QS
QSOP−20
55 Units / Rail
74FST3245QSR
QSOP−20
2500 Units / 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.
http://onsemi.com
3
3Pages −A−
−B−
LP
0.25 (0.010) M T
74FST3245
PACKAGE DIMENSIONS
QSOP−20
QS SUFFIX
CASE 492A−01
ISSUE O
R
U
G
Q
H x 45_
RAD.
0.013 X 0.005
DP. MAX
RAD.
0.005−0.010
TYP
DETAIL E
MOLD PIN
MARK
K
C 20 PL D
−T−
SEATING
PLANE
0.25 (0.010) M T B S A S
V
J
M
N 8 PL
F
DETAIL E
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. THE BOTTOM PACKAGE SHALL BE BIGGER THAN
THE TOP PACKAGE BY 4 MILS (NOTE: LEAD SIDE
ONLY). BOTTOM PACKAGE DIMENSION SHALL
FOLLOW THE DIMENSION STATED IN THIS
DRAWING.
4. PLASTIC DIMENSIONS DOES NOT INCLUDE MOLD
FLASH OR PROTRUSIONS. MOLD FLASH OR
PROTRUSIONS SHALL NOT EXCEED 6 MILS PER
SIDE.
5. BOTTOM EJECTOR PIN WILL INCLUDE THE
COUNTRY OF ORIGIN (COO) AND MOLD CAVITY I.D.
INCHES
DIM MAX MIN
A 0.337 0.344
B 0.150 0.157
C 0.061 0.068
D 0.008 0.012
F 0.016 0.035
G 0.025 BSC
H 0.008 0.018
J 0.0098 0.0075
K 0.004 0.010
L 0.230 0.244
M 0_ 8_
N 0_ 7_
P 0.052 0.062
Q 0.035 DIA
R 0.035 0.045
U 0.035 0.045
V 0_ 8_
MILLIMETERS
MAX MIN
8.56 8.74
3.81 3.99
1.55 1.73
0.20 0.31
0.41 0.89
0.64 BSC
0.20 0.46
0.249 0.191
0.10 0.25
5.84 6.20
0_ 8_
0_ 7_
1.32 1.58
0.89 DIA
0.89 1.14
0.89 1.14
0_ 8_
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
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: [email protected]
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5773−3850
http://onsemi.com
6
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
74FST3245/D
6 Page | |||
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部品番号 | 部品説明 | メーカ |
74FST3245DTR2 | 8-Bit Bus Switch | ON |