ON Semiconductor 74FST3400 Technical data
74FST3400
4−Bit, 4−Port Bus Exchange
Switch
The ON Semiconductor 74FST3400 is a 4−bit, 4−port bus exchange
switch. The device is CMOS TTL compatible when operating between
4.0 and 5.5 Volts. The device exhibits extremely low R
nearly zero propagation delay. The device adds no noise or ground
bounce to the system.
Features
• R
4 Typical
ON
• 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 QS3400, FST3400, CBT3400
• All Popular Packages: SOIC−24, TSSOP−24, QSOP−24
• All Devices in Package TSSOP are Inherently Pb−Free*
BE
C
A
B
D
C
A
B
D
BX
BX
GND
1
2
0
3
0
4
0
5
0
6
1
7
1
8
1
9
1
10
0
11
1
12
Figure 1. 24−Lead Pinout
24
23
22
21
20
19
18
17
16
15
14
13
V
D
B
A
C
D
B
A
C
NC
BX
BX
CC
3
3
3
3
2
2
2
2
3
2
and adds
ON
24
24
24
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1
SOIC−24
DW SUFFIX
CASE 751E
1
TSSOP−24
DT SUFFIX
CASE 948H
1
QSOP−24
QS SUFFIX
CASE 492B
MARKING
DIAGRAMS
24
FST3400
AWLYWW
1
24
FST
3400
ALYW
1
24
FST3400
AWLYYWW
1
TRUTH TABLE
BE
BX
H
L
L
NOTE: H = HIGH Voltage Level, L = LOW Voltage Level, X = Don’t Care,
NOTE: Hi−Z = High Impedance, i = 0, 1, 2 or 3
*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
January, 2005 − Rev. 5
BX
0
X
1
X
BXi = L
BXi = H
BX
BX
A0−3
Hi−Z
C0−3
D0−3
B0−3
Hi−Z
D0−3
C0−3
2
X
3
X
Function
Disconnect
Connect
Exchange
1 Publication Order Number:
A = Assembly Location
L, WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
PIN NAMES
Pin
BE
Ax, Bx, Cx, Dx Bus A, Bus B, Bus C, Bus D
, OE
OE
1
2
, OE
OE
1
2
, OE
OE
1
2
, OE
OE
1
2
, OE
OE
1
2
OE
, OE
1
2
OE1, OE
2
Bus Enable Input (Active LOW)
Bus Exchange (Bit 0)
Bus Exchange (Bit 1)
Bus Exchange (Bit 2)
Bus Exchange (Bit 3)
No Connect
Ground
Power
Description
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
74FST3400/D
74FST3400
†
A
0
B
0
A
1
B
1
A
2
B
2
A
3
B
3
C
0
D
0
C
1
D
1
C
2
D
2
C
3
D
3
BX
0
BX
1
BX
2
BX
3
BE
Figure 2. Logic Diagram
ORDERING INFORMATION
Device Order Number Package Shipping
74FST3400DW SOIC−24 48 Units / Rail
74FST3400DWR2 SOIC−24 2500 Units / Tape & Reel
74FST3400DT TSSOP−24*
(Pb−Free)
74FST3400DTR2 TSSOP−24*
(Pb−Free)
74FST3400QS QSOP−24 96 Units / Rail
74FST3400QSR QSOP−24 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.
96 Units / Rail
2500 Units / Tape & Reel
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74FST3400
MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
I
I
OK
I
I
CC
I
GND
T
STG
T
T
MSL Moisture Sensitivity Level 1
F
V
ESD
I
Latchup
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. Tested to EIA/JESD22−A114−A.
2. Tested to EIA/JESD22−A115−A.
3. Tested to JESD22−C101−A.
4. Tested to EIA/JESD78.
DC Supply Voltage 0.5 to 7.0 V
CC
DC Input Voltage 0.5 to 7.0 V
I
DC Output Voltage 0.5 to 7.0 V
O
DC Input Diode Current VI GND 50 mA
IK
DC Output Diode Current VO GND 50 mA
DC Output Sink Current 128 mA
O
DC Supply Current per Supply Pin 100 mA
DC Ground Current per Ground Pin 100 mA
Storage Temperature Range 65 to 150 °C
Lead Temperature, 1 mm from Case for 10 Seconds 260 °C
L
Junction Temperature Under Bias 150 °C
J
Thermal Resistance SOIC
JA
TSSOP
QSOP
Flammability Rating Oxygen Index: 28 to 34 UL 94 V−0 @ 0.125 in
R
ESD Withstand Voltage Human Body Model (Note 1)
Machine Model (Note 2)
Charged Device Model (Note 3)
125
170
200
2000
200
N/A
Latchup Performance Above VCC and Below GND at 85°C (Note 4) 500 mA
°C/W
V
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
V
V
V
T
t/V Input Transition Rise or Fall Rate Switch Control Input
5. Unused control inputs may not be left open. All control inputs must be tied to a high or low logic input voltage level.
Supply Voltage Operating, Data Retention Only 4.0 5.5 V
CC
Input Voltage (Note 5) 0 5.5 V
I
Output Voltage (HIGH or LOW State) 0 5.5 V
O
Operating Free−Air Temperature 40 85 °C
A
Switch I/O VCC = 5.0 V 0.5 V
0
DC
5
ns/V
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