參數(shù)資料
型號: CD74AC245SM
廠商: Texas Instruments, Inc.
元件分類: 通用總線功能
英文描述: Octal-Bus Transceiver, Three-State, Non-Inverting
中文描述: 八路總線收發(fā)器,三態(tài),非反相
文件頁數(shù): 6/8頁
文件大?。?/td> 38K
代理商: CD74AC245SM
6
Three-State Output Capacitance
C
O
-
-
15
-
-
15
-
pF
Input Capacitance
C
I
-
-
-
10
-
-
10
pF
Power Dissipation Capacitance
C
PD
(Note 11)
-
-
57
-
-
57
-
pF
NOTES:
8. Limits tested 100%.
9. 3.3V Min is at 3.6V, Max is at 3V.
10. 5V Min is at 5.5V, Max is at 4.5V
11. C
PD
is used to determine the dynamic power consumption per channel.
AC: P
D
= V
CC2
f
i
(C
PD
+ C
L
)
ACT: P
D
= V
CC2
f
i
(C
PD
+ C
L
) + V
CC
I
CC
where f
i
= input frequency, C
L
= output load capacitance, V
CC
= supply voltage.
NOTES:
12. Input pulses have the following characteristics: PRR
1MHz, t
r
= 3ns, SKEW 1ns.
13. R.F. fixture with 700MHz design rules required. IC should be soldered into test board and bypassed with 0.1
μ
F capacitor. Scope and
probes require 700MHz bandwidth.
FIGURE 1. SIMULTANEOUS SWITCHING TRANSIENT WAVEFORMS
Switching Specifications
Input t
r
, t
f
= 3ns, C
L
= 50pF (Worst Case)
(Continued)
PARAMETER
SYMBOL
V
CC
(V)
-40
o
C TO 85
o
C
-55
o
C TO 125
o
C
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
OTHER
OUTPUTS
OUTPUT
UNDER
TEST
V
OH
V
OHV
V
OL
V
OLP
V
OL
V
OH
CD74AC245, CD74ACT245
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