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參數(shù)資料
| 型號： | CBT3244A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Octal bus switch with quad output enables |
| 中文描述： | 帶四輸出使能的8個總線開關(guān) |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 120K |
| 代理商： | CBT3244A |
Philips Semiconductors
Product data sheet
CBT3244A
Octal bus switch with quad output enables
2004 May 26
4
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
= –40
°
C to +85
°
C
Typ
1
UNIT
Min
Max
V
IK
Input clamp voltage
V
CC
= 4.5 V; I
I
= –18 mA
—
—
–1.2
V
I
I
Input leakage current
V
CC
= 5.5 V; V
I
= GND or 5.5 V
—
—
±
1
μ
A
I
CC
Quiescent supply current
V
CC
= 5.5 V; I
O
= 0, V
I
= V
CC
or GND
—
1
3
μ
A
I
CC
Additional supply current per
input pin
2
V
CC
= 5.5 V, one input at 3.4 V, other inputs at
V
CC
or GND
—
—
2.5
mA
C
I
Control pins input capacitance
V
I
= 3 V or 0 V, OE = V
CC
—
3
—
pF
C
IO(OFF)
Input/output capacitance
OE = V
CC
= 5.0 V
—
3
—
pF
V
CC
= 4.5 V; V
I
= 0 V; I
I
= 64 mA
—
4
7
r
on3
On-resistance
V
CC
= 4.5 V; V
I
= 0 V; I
I
= 30 mA
—
4
7
V
CC
= 4.5 V; V
I
= 2.4 V; I
I
= 15 mA
—
8
15
NOTES:
1. All typical values are at V
= 5 V, T
= 25
°
C
2. This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
or GND.
3. 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 lowest voltage of the two (A or B) terminals.
AC CHARACTERISTICS
GND = 0 V; t
R;
C
L
= 50 pF
LIMITS
SYMBOL
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
T
amb
= –40
°
C to +85
°
C
CC
= +5.0 V
±
0.5 V
UNIT
Min
Max
t
pd
Propagation delay
1
A or B
B or A
—
.25
ns
t
en
Output enable time
to HIGH and LOW level
OE
A or B
1.0
5.6
ns
t
dis
Output disable time
from HIGH and LOW level
OE
A or B
1.0
6.0
ns
NOTE:
1. This parameter is warranted but not production tested. The propagation delay is based on the RC time constant of the typical on-state
resistance of the switch and a load capacitance of 50 pF, when driven by an ideal voltage source (zero output impedance).
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