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부품번호 | 74FST3400 기능 |
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기능 | 4-Bit / 4-Port Bus Exchange Switch | ||
제조업체 | ON | ||
로고 | |||
전체 8 페이지수
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 RON and adds
nearly zero propagation delay. The device adds no noise or ground
bounce to the system.
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 QS3400, FST3400, CBT3400
• All Popular Packages: SOIC−24, TSSOP−24, QSOP−24
• All Devices in Package TSSOP are Inherently Pb−Free*
BE
C0
A0
B0
D0
C1
A1
B1
D1
BX0
BX1
GND
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
10 15
11 14
12 13
VCC
D3
B3
A3
C3
D2
B2
A2
C2
NC
BX3
BX2
Figure 1. 24−Lead Pinout
TRUTH TABLE
BE BX0 BX1 BX2 BX3 A0−3 B0−3
Function
H X X X X Hi−Z Hi−Z Disconnect
L
BXi = L
C0−3 D0−3
Connect
L
BXi = H
D0−3 C0−3 Exchange
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
1
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MARKING
DIAGRAMS
24
1
SOIC−24
DW SUFFIX
CASE 751E
24
FST3400
AWLYWW
1
24
1
TSSOP−24
DT SUFFIX
CASE 948H
24
FST
3400
ALYW
1
24
1
QSOP−24
QS SUFFIX
CASE 492B
24
FST3400
AWLYYWW
1
A = Assembly Location
L, WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
PIN NAMES
Pin
BE
Ax, Bx, Cx, Dx
OE1, OE2
OE1, OE2
OE1, OE2
OE1, OE2
OE1, OE2
OE1, OE2
OE1, OE2
Description
Bus Enable Input (Active LOW)
Bus A, Bus B, Bus C, Bus D
Bus Exchange (Bit 0)
Bus Exchange (Bit 1)
Bus Exchange (Bit 2)
Bus Exchange (Bit 3)
No Connect
Ground
Power
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
Publication Order Number:
74FST3400/D
74FST3400
DC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Conditions
VCC TA = *405C to )855C
(V) Min Typ* Max Unit
VIK Clamp Diode Resistance
IIN = *18mA
4.5 *1.2 V
VIH High−Level Input Voltage
4.0 to 5.5 2.0
V
VIL Low−Level Input Voltage
4.0 to 5.5
0.8 V
II
IOZ
RON
Input Leakage Current
OFF−STATE Leakage Current
Switch On Resistance (Note 6)
0 v VIN v 5.5 V
0 v A, B v VCC
VIN = 0 V, IIN = 64 mA
5.5 $1.0 mA
5.5 $1.0 mA
4.5 4 7 W
VIN = 0 V, IIN = 30 mA
4.5 4 7
VIN = 2.4 V, IIN = 15 mA
4.5 8 15
VIN = 2.4 V, IIN = 15 mA
4.0 11 20
ICC Quiescent Supply Current
VIN = VCC or GND, IOUT = 0
5.5
3 mA
DICC Increase In ICC per Input
One input at 3.4 V, Other inputs at VCC or GND
5.5
2.5 mA
*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. On resistance is determined by the lower
of the voltages on the two (A or B) pins.
AC ELECTRICAL CHARACTERISTICS
TA = *405C to )855C
CL = 50 pF, RU = RD = 500 W
Symbol
Parameter
Conditions
VCC = 4.5−5.5 V
Min Max
VCC = 4.0 V
Min Max
Unit
tPHL,
tPLH
Prop Delay Bus to Bus (Note 7)
Prop Delay, BXn to An, Bn, Cn or Dn
VI = OPEN
0.25
1.0 5.3
0.25 ns
6.0
tPZH,
tPZL
Output Enable Time, BXn to An, Bn, Cn or Dn
Output Enable Time, IOE to An, Bn, Cn or Dn
VI = 7 V for tPZL
VI = OPEN for tPZH
1.0 5.8
1.0 5.8
6.5 ns
6.5
tPHZ,
tPLZ
Output Disable Time, BXn to An, Bn, Cn or Dn
Output Disable Time, IOE to An, Bn, Cn or Dn
VI = 7 V for tPLZ
VI = OPEN for tPHZ
1.0 5.3
1.0 5.3
6.2 ns
6.2
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 Port Input/Output Capacitance
VCC, OE = 5.0 V
8. TA = )25°C, f = 1 MHz, Capacitance is characterized but not tested.
Typ Max Unit
6 pF
13 pF
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4페이지 74FST3400
PACKAGE DIMENSIONS
TSSOP−24
DT SUFFIX
CASE 948H−01
ISSUE A
0.15 (0.006) T U S
24X K REF
0.10 (0.004) M T U S V S
2X L/2
24
L
PIN 1
IDENT.
1
13
B
−U−
12
0.15 (0.006) T U S
A
−V−
0.10 (0.004)
−T− SEATING
PLANE
D
C
K
K1
ÇÉÇÉÇJ1
ÇÇÉÇÇÉÇÇSECTION N−N
J
GH
N
N
F
DETAIL E
0.25 (0.010)
M
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A DOES NOT INCLUDE MOLD FLASH,
PROTRUSIONS OR GATE BURRS. MOLD FLASH
OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006)
PER SIDE.
4. DIMENSION B DOES NOT INCLUDE INTERLEAD
FLASH OR PROTRUSION. INTERLEAD FLASH OR
PROTRUSION SHALL NOT EXCEED
0.25 (0.010) PER SIDE.
5. DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN
EXCESS OF THE K DIMENSION AT MAXIMUM
MATERIAL CONDITION.
6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
7. DIMENSION A AND B ARE TO BE DETERMINED AT
DATUM PLANE −W−.
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 7.70 7.90 0.303 0.311
B 4.30 4.50 0.169 0.177
C −−− 1.20 −−− 0.047
D 0.05 0.15 0.002 0.006
F 0.50 0.75 0.020 0.030
G 0.65 BSC
0.026 BSC
H 0.27 0.37 0.011 0.015
J 0.09 0.20 0.004 0.008
J1 0.09 0.16 0.004 0.006
K 0.19 0.30 0.007 0.012
K1 0.19 0.25 0.007 0.010
L 6.40 BSC
0.252 BSC
M 0_ 8_ 0_ 8_
DETAIL E
−W−
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부품번호 | 상세설명 및 기능 | 제조사 |
74FST3400 | 4-Bit / 4-Port Bus Exchange Switch | ON |
74FST3400DT | 4-Bit / 4-Port Bus Exchange Switch | ON |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |