參數(shù)資料
型號: M74HCT244M1R
廠商: 意法半導(dǎo)體
英文描述: OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HCT240: INVERTED - HCT241/244 NON INVERTED
中文描述: 八路總線緩沖器與三態(tài)輸出HCT240:倒立- HCT241/244非反相
文件頁數(shù): 4/9頁
文件大?。?/td> 193K
代理商: M74HCT244M1R
M74HCT244
4/9
CAPACITIVE CHARACTERISTICS
1) C
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
CC(opr)
= C
PD
x V
CC
x f
IN
+ I
CC
/8 (per circuit)
TEST CIRCUIT
C
L
= 50pF/150pF or equivalent (includes jig and probe capacitance)
R
1
= 1K
or equivalent
R
T
= Z
OUT
of pulse generator (typically 50
)
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
T
A
= 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
C
IN
Input Capacitance
Output
Capacitance
Power Dissipation
Capacitance (note
1)
5
10
10
10
pF
C
OUT
10
pF
C
PD
31
pF
TEST
SWITCH
t
PLH
, t
PHL
t
PZL
, t
PLZ
t
PZH
, t
PHZ
Open
V
CC
GND
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PDF描述
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