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PDF TC7MB3251FK Data sheet ( Hoja de datos )
| Número de pieza | TC7MB3251FK | |
| Descripción | 1-of-8 FET Multiplexer/Demultiplexer | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TC7MB3251FK (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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TC7MB3251FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7MB3251FK
1-of-8 FET Multiplexer/Demultiplexer
The TC7MB3251FK is high-speed CMOS 1-8
multiplexer/demultiplexer. The low on resistance of the switch
allows connections to be made with minimal propagation delay
time.
This device is 1 to 8 multiplexer/demultiplexer controlled by
the combination of select inputs (S0, S1, S2) and output enable
(OE). The A inputs is connected to the corresponded B1~B8
outputs determined by the combination both the select inputs (S0,
S1, S2) and output enable (OE). When the output enable (OE)
input is held “H” level, the switches are open with regardless the
state of select inputs and a high-impedance state exists between
the switches.
All inputs are equipped with protection circuits against static
discharge.
Weight: 0.02 g (typ.)
Features
· Operating voltage: VCC = 4.5~5.5 V
· High speed: tpd = 0.25 ns (max)
· Low on resistance: RON = 5 Ω (typ.)
· ESD performance: Machine model > ±200 V
Human body model > ±2000 V
· Compatible with TTL outputs (control inputs)
· Package: VSSOP (US16)
· Pin compatible with the 74xx251 type.
Functionally equivalent to (FST/CBT) 3251.
Pin Assignment (top view)
B4 1
B3 2
B2 3
B1 4
A5
NC 6
OE 7
GND 8
16 VCC
15 B5
14 B6
13 B7
12 B8
11 S0
10 S1
9 S2
1 2001-09-12
1 page  
AC Test Circuit
Output
Switch
Open
7.0 V
GND
Measure
CL = 50 pF
RL = 500 W
TC7MB3251FK
Parameter
tpLH, tpHL
tpLZ, tpZL
tpHZ, tpZH
Switch
Open
7.0 V
Open
AC Waveform
Input
Output
Figure 1
tr 2.5 ns
tf 2.5 ns
90%
1.5 V
10%
tpLH, tpHL
1.5 V
tpHL, tpLH
3.0 V
GND
VOH
VOL
Figure 2 tpLH, tpHL
Output Enable
( OE , S)
Output (A, B)
Low to Off to Low
Output (A, B)
High to Off to High
tr 2.5 ns
tpLZ
tf 2.5 ns
90%
1.5 V
10%
tpZL
tpHZ
VOL +
0.3 V
tpZH
VOH - 0.3 V
Outputs
enabled
Outputs
disabled
1.5 V
1.5 V
Outputs
enabled
Figure 3 tpLZ, tpHZ, tpZL, tpZH
3.0 V
GND
3.5 V
VOL
VOH
GND
5 2001-09-12
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet TC7MB3251FK.PDF ] | |
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