SN74CBT3125_10 Datasheet, PDF (3/20 Pages) Texas Instruments – QUADRUPLE FET BUS SWITCH

SN74CBT3125
QUADRUPLE FET BUS SWITCH
SCDS021I − MAY 1995 − REVISED SEPTEMBER 2002
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP^† MAX UNIT
V_IK
V_CC = 4 V,
I_I = −18 mA
−1.2 V
I_I
V_CC = 5.5 V,
V_I = 5.5 V or GND
±1 μA
I_CC
ΔI_CC‡
V_CC = 5.5 V,
Control inputs V_CC = 5.5 V,
I_O = 0,
V_I = V_CC or GND
One input at 3.4 V, Other inputs at V_CC or GND
3 μA
2.5 mA
C_i
Control inputs V_I = 3 V or 0
3
pF
C_io(OFF)
V_O = 3 V or 0,
OE = V_CC
4
pF
V_CC = 4 V,
TYP at V_CC = 4 V
V_I = 2.4 V,
I_I = 15 mA
16
22
r_on§
V_CC = 4.5 V
V_I = 0
I_I = 64 mA
I_I = 30 mA
5
7_Ω
5
7
V_I = 2.4 V,
I_I = 15 mA
10
15
† _{All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C.}
‡ _{This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.}
§ _{Measured by the voltage drop between the A and the B terminals at the indicated current through the switch. On-state resistance is determined}
by the lower voltage of the two (A or B) terminals.
switching characteristics over recommended operating free-air temperature range, C_L = 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
t_pd¶
FROM
(INPUT)
A or B
TO
(OUTPUT)
B or A
V_CC = 4 V
MIN MAX
0.35
V_CC = 5 V
± 0.5 V
MIN MAX
0.25
UNIT
ns
t_en
OE
A or B
6 1.6 5.4 ns
t_dis
OE
A or B
5.1
1 4.7 ns
¶ _{The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance,}
when driven by an ideal voltage source (zero output impedance).
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