Datasheet

SN74CBT6800A
10-BIT FET BUS SWITCH
WITH PRECHARGED OUTPUTS
SCDS005N – MARCH 1993 – REVISED MARCH 2001
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
†
MAX UNIT
V
IK
V
CC
= 4.5 V, I
I
= –18 mA –1.2 V
I
I
V
CC
= 5.5 V, V
I
= 5.5 V or GND ±5 µA
I
O
V
CC
= 4.5 V, BIASV = 2.4 V, V
O
= 0 0.25 mA
I
CC
V
CC
= 5.5 V, I
O
= 0, V
I
= V
CC
or GND 50 µA
∆I
CC
‡
Control inputs V
CC
= 5.5 V, One input at 3.4 V, Other inputs at V
CC
or GND 2.5 mA
C
i
Control inputs V
I
= 3 V or 0 3.5 pF
C
o(OFF)
V
O
= 3 V or 0, Switch off 4.5 pF
§
V
CC
= 4 V,
TYP at V
CC
= 4 V
V
I
= 2.4 V, I
I
= 15 mA 11 20
r
on
§
V
I
=0
I
I
= 64 mA 3 7
Ω
on
V
CC
= 4.5 V
V
I
=
0
I
I
= 30 mA 3 7
V
I
= 2.4 V, I
I
= 15 mA 6 15
†
All typical values are at V
CC
= 5 V (unless otherwise noted), T
A
= 25°C.
‡
This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
CC
or GND.
§
Measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by
the lower of the voltages 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
TEST
CONDITIONS
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 4 V
V
CC
= 5 V
± 0.5 V
UNIT
CONDITIONS
(INPUT)
(OUTPUT)
MIN MAX MIN MAX
t
pd
¶
A or B B or A 0.35 0.25 ns
t
PZH
BIASV = GND
ON
AorB
6 2 5.1
ns
t
PZL
BIASV = 3 V
ON
A
or
B
6 2 5.6
ns
t
PHZ
BIASV = GND
ON
AorB
5.5 1 5
ns
t
PLZ
BIASV = 3 V
ON
A
or
B
5.5 2 5.9
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).