參數(shù)資料
型號(hào): 74AC244SJX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 通用總線功能
英文描述: Octal Buffer/Line Driver with 3-STATE Outputs
中文描述: AC SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: 5.30 MM, LEAD FREE, EIAJ TYPE2, SOP-20
文件頁數(shù): 4/8頁
文件大?。?/td> 79K
代理商: 74AC244SJX
CAPACITIVECHARACTERISTICS
Symbol
Parameter
Test Conditions
Value
Unit
V
CC
(V)
T
A
= 25
o
C
Min.
Typ.
-40 to 85
o
C
Min.
Max.
Max.
C
IN
C
OUT
C
PD
Input Capacitance
Output Capacitance
Power Dissipation
Capacitance (note 1)
5.0
5.0
5.0
4
8
21
pF
pF
pF
1)C
PD
isdefined asthevalue of the IC’sinternal equivalent capacitance whichis calculated fromtheoperating current consumption without load. (Refer to
Test Circuit).Average operating current can be obtained bythe followingequation. I
CC
(opr) = C
PD
V
CC
f
IN
+I
CC
/n(per circuit)
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, R
L
= 500
, Input t
r
= t
f
=3ns)
Symbol
Parameter
Test Condition
Value
Unit
V
CC
(V)
3.3
(*)
5.0
(**)
3.3
(*)
5.0
(**)
3.3
(*)
5.0
(**)
T
A
= 25
o
C
Min.
Typ.
1.5
1.5
1.5
1.5
1.5
1.5
-40 to 85
o
C
Min.
1.5
1.5
1.5
1.5
1.5
1.5
Max.
9
7
10
8
11
9
Max.
10
7.5
11
8.5
12
10
t
PLH
t
PHL
Propagation Delay Time
5
4
6
4
7
ns
t
PZL
t
PZH
Output Enable Time
ns
t
PLZ
t
PHZ
Output Disable Time
ns
5.5
(*) Voltagerange is3.3V
±
0.3V
(**) Voltagerange is5V
±
0.5V
TEST CIRCUIT
TEST
SWITCH
Open
2V
CC
Open
t
PLH
, t
PHL
t
PZL
, t
PLZ
t
PZH
, t
PHZ
C
L
=50 pFor equivalent (includes jigand probe capacitance)
R
L
=R
1
=500
or equivalent
R
T
=Z
OUT
of pulse generator (typically50
)
74AC244
4/8
相關(guān)PDF資料
PDF描述
74AC244 Octal Bus Buffer with 3 State Outputs (Non Inverted)(三態(tài)輸出的八總線緩沖器)
74AC245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS NON INVERTED
74AC245B OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS NON INVERTED
74AC245M OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS NON INVERTED
74AC245MTR OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS (NON INVERTED)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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74AC245 制造商:Toshiba America Electronic Components 功能描述:
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74AC245MTC 功能描述:總線收發(fā)器 Octal Bidir Trans RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel