tc7mbl3253cft TOSHIBA Semiconductor CORPORATION, tc7mbl3253cft Datasheet - Page 8
tc7mbl3253cft
Manufacturer Part Number
tc7mbl3253cft
Description
Dual 1-of-4 Fet Multiplexer/demultiplexer
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TC7MBL3253CFT.pdf
(12 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
tc7mbl3253cftG
Manufacturer:
TOSH
Quantity:
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Part Number:
tc7mbl3253cftG
Manufacturer:
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Rise and Fall Time (tr / tf) of the TC7MBL3253C I/O Signals
The tr(out) and tf(out) values of the output signals are affected by the CR time constant of the input, which consists of
the switch terminal capacitance (C
In practice, the tr(out) and tf(out) values are also affected by the circuit’s capacitance and resistance components other
than those of the TC7MBL3253C.
The tr(out) / tf(out) values can be approximated as follows. (Figure 3 shows the test circuit.)
tr(out) / tf(out) (approx) = - ( C
Calculation example:
Calculation conditions:
tr(out) (approx) = - ( 13 + 15 )E-12 ・ ( 120 + 9) ・ ln ( ( ( 3.0 - 0 ) – 1.5 ) / ( 3.0 – 0 ) )
V
Output of the previous IC = digital (i.e., high-level voltage = V
CC
= 3.0V, C
Previous IC
R
DRIVE
R
L
≈ 2.5 ns
DRIVE
= output impedance of the previous IC
= 15pF , R
An/Bn
DRIVE
I/O
+ C
I/O
= 120 Ω (output impedance of the previous IC), V
L
) and the on-resistance (R
TC7MBL3253C
) ・ (R
(Switch On)
Previous IC
R
DRIVE
Figure 3 Test Circuit
C
R
I/O
ON
DRIVE+
R
DRIVE
where, R
= output impedance of the previous IC
R
ON
Bn/An
DRIVE
) ・ ln ( ( ( V
8
CC
ON
is the output impedance of the previous-stage circuit.
; low-level voltage = GND)
) of the input.
Measure
Measure
Waveform generated with the TC7MBL3253C added
項目
OH
V
M
Waveform generated without the TC7MBL3253C
– V
OL
TC7MBL3253CFT/FK/FTG
3.3 ± 0.3 V
) – V
V
CC
tr(out)
M
M
/ 2
) / ( V
= 1.5V (V
V
M
OH
– V
2.5 ± 0.2 V
CC
V
OL
V
CC
/ 2)
CC
tf(out)
) )
/ 2
2009-02-02
V
M
V
GND
CC
1.8 ± 0.15 V
V
V
V
CC
OH
OL
/ 2