CBT3245 Philips Semiconductors, CBT3245 Datasheet - Page 4

• Manufacturer Part Number: CBT3245
• Description: Octal bus switch with output enable
• Manufacturer: Philips Semiconductors

1. All typical values are at V
2. This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
3. Measured by the voltage drop between the A and the B terminals at the indicated current through the switch.
1. This parameter is warranted but not production tested. The propagation delay is based on the RC time constant of the typical on-state
Philips Semiconductors
DC ELECTRICAL CHARACTERISTICS
NOTES:
AC CHARACTERISTICS
GND = 0V; t
NOTES:
1998 Dec 08
SYMBOL
C
Octal bus switch with output enable
On-state resistance is determined by the lowest voltage of the two (A or B) terminals.
SYMBOL
resistance of the switch and a load capacitance of 50 pF, when driven by an ideal voltage source (zero output impedance).
IO(OFF)
r
V
I
C
on
CC
I
I
CC
IK
t
I
t
t
I
dis
3
3
pd
en
R;
Input clamp voltage
Input leakage current
Quiescent supply current
Additional supply current per
input pin
Control pins
Power-off leakage current
On-resistance
C
L
Propagation delay
Output enable time
to High and Low level
Output disable time
from High and Low level
= 50pF
PARAMETER
2
CC
= 5V, TA = 25 C
PARAMETER
1
2
V
V
V
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
I
O
CC
CC
CC
= 3V or 0, OE = V
= 3V or 0
= 4.5V; I
= 5.5V; V
= 5.5V; I
= 5.5V, one input at 3.4V, other inputs at
= 4.5V; V
= 4.5V; V
= 4.5V; V
or GND
I
O
TEST CONDITIONS
I
1
1
1
= –18mA
= GND or 5.5V
= 0, V
= 0V; I
= 0V; I
= 2.4V; I
(INPUT)
FROM
A or B
CC
OE
OE
I
I
I
= V
= 64mA
= 30mA
4
I
= 15mA
CC
or GND
(OUTPUT)
B or A
A or B
A or B
TO
T
amb
Min
Min
V
CC
T
amb
74CBT3245
= –40 C to +85 C
= +5.0V 0.5V
CC
= –40 C to +85 C
or GND
LIMITS
Typ
10
3
6
5
5
1
Max
.25
Preliminary specification
CBT3245
Max
–1.2
3.5
50
15
7
7
5
UNIT
ns
ns
ns
UNIT
mA
pF
pF
V
A
A