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FSTU32160MTD 데이터시트 PDF




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부품번호 FSTU32160MTD 기능
기능 16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch with -2V Undershoot Protection
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FSTU32160MTD 데이터시트, 핀배열, 회로
May 1999
Revised March 2000
FSTU32160
16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch
with 2V Undershoot Protection
General Description
The Fairchild Switch FSTU32160 is a 16-bit to 32-bit high-
speed CMOS TTL-compatible multiplexer/demultiplexer
bus switch. The low on resistance of the switch allows
inputs to be connected to outputs without adding propaga-
tion delay or generating additional ground bounce noise.
The device can be used in applications where two buses
need to be addressed simultaneously. The FSTU32160 is
designed so that the A Port demultiplexes into B1 or B2 or
both. The A and B Ports are “undershoot hardened” with
UHCprotection to support an extended range to 2.0V
below ground. Fairchild’s integrated Undershoot Hardened
Circuit, UHC senses undershoot at the I/O’s, and responds
by preventing voltage differentials from developing and
turning on the switch.
Two select (SEL1, SEL2) inputs provide switch enable con-
trol. When SEL1, SEL2 are HIGH, the device precharges
the B Port to a selectable bias voltage (Bias V) to minimize
live insertion noise.
Features
s Undershoot hardened to 2V (A and B Ports).
s Slower Output Enable times prevent signal disruption
s 4switch connection between two ports.
s Minimal propagation delay through the switch.
s Low lCC.
s Zero bounce in flow-through mode.
s Control inputs compatible with TTL level.
s See Applications Note AN-5008 for details
Ordering Code:
Order Number Package Number
Package Description
FSTU32160MTD
MTD56
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
UHCis a trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation DS500244
www.fairchildsemi.com




FSTU32160MTD pdf, 반도체, 판매, 대치품
AC Electrical Characteristics
TA = −40 °C to +85 °C,
Symbol
Parameter
CL = 50 pF, RU= RD = 500
VCC = 4.5 5.5V
VCC = 4.0V
Units Conditions
Figure No.
Min Max Min Max
tPHL, tPLH
A or B, to B or A (Note 7)
0.25
0.25
ns VI = OPEN
Figure 2
Figure 3
tPZH Output Enable Time,
SEL to A, B
7.0 30.0
35.0
ns VI = OPEN for tPZH
BiasV = GND
Figure 2
Figure 3
tPZL Output Enable Time,
SEL to A, B
7.0 30.0
35.0
ns VI = 7V for tPZL
BiasV = 3V
Figure 2
Figure 3
tPHZ Output Disable Time,
SEL to A, B
1.0 6.9
7.3
ns VI = OPEN for tPHZ
BiasV = GND
Figure 2
Figure 3
tPLZ Output Disable Time,
SEL to A, B
1.0 7.7
7.7 ns VI = 7V for tPLZ,
BiasV = 3V
Figure 2
Figure 3
Note 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 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).
Capacitance (Note 8)
Symbol
Parameter
Typ
CIN Control pin Input Capacitance
4
CI/O OFF
Input/Output Capacitance “OFF State”
8
Note 8: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.
Undershoot Characteristic (Note 9)
Max
Units
pF
pF
Conditions
VCC = 5.0V
VCC = 5.0V, Switch OFF
Symbol
Parameter
Min
Typ
Max
Units
Conditions
VOUTU
Output Voltage During Undershoot
2.5 VOH 0.3
V Figure 1
Note 9: This test is intended to characterize the device’s protective capabilities by maintaining output signal integrity during an input transient voltage
undershoot event.
FIGURE 1.
Device Test Conditions
Parameter
VIN
R1 = R2
VTRI
VCC
Value
see Waveform
100K
11.0
5.5
Units
V
V
V
Transient
Input Voltage (VIN) Waveform
www.fairchildsemi.com
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부품번호상세설명 및 기능제조사
FSTU32160MTD

16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch with -2V Undershoot Protection

Fairchild Semiconductor
Fairchild Semiconductor

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