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參數(shù)資料
| 型號(hào)： | 74FR244SC |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 通用總線功能 |
| 英文描述： | Octal Buffer/Line Driver with 3-STATE Outputs |
| 中文描述： | FR/FASTR SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁(yè)數(shù)： | 3/5頁(yè) |
| 文件大?。?/td> | 50K |
| 代理商： | 74FR244SC |
3
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7
AC Electrical Characteristics
Extended AC Characteristics
Note 3:
This specification is guaranteed but not tested. The limits apply to propagation delays for all paths described switching in phase,
i.e., all LOW-to-HIGH, HIGH-to-LOW, 3-STATE-to-HIGH, etc.
Note 4:
These specifications guaranteed but not tested. The limits represent propagation delays with 250 pF load capacitors in place of the 50 pF load
capacitors in the standard AC load. This specification pertains to single output switching only.
Note 5:
Skew is defined as the absolute value of the difference between the actual propagation delays for any two outputs of the same device. The specifi-
cation applies to any outputs switching HIGH-to-LOW, (t
OSHL
), LOW-to-HIGH, (t
OSLH
), or HIGH-to-LOW and/or LOW-to-HIGH, (t
OST
). Specification guaran-
teed with all outputs switching in phase.
Symbol
Parameter
T
A
=
+
25
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Typ
2.6
1.8
4.8
T
A
=
0
°
C to
+
70
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Min
1.0
1.0
2.5
Units
Min
1.0
1.0
2.5
Max
3.9
3.9
6.6
Max
3.9
3.9
6.6
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation Delay
ns
Output Enable Time
ns
2.5
1.6
1.6
3.9
3.7
3.6
6.6
6.4
6.4
2.5
1.6
1.6
6.6
6.4
6.4
Output Disable Time
ns
Symbol
Parameter
T
A
=
0
°
C to
+
70
°
C
V
CC
=
+
5.0V
C
L
=
50 pF
Eight Outputs Switching
(Note 3)
Min
1.0
T
A
=
0
°
C to
+
70
°
C
V
CC
=
+
5.0V
C
L
=
250 pF
(Note 4)
Units
Max
5.0
Min
2.3
Max
7.3
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
OSHL
Propagation Delay
ns
1.0
2.5
2.5
5.0
7.7
7.7
2.3
7.3
Output Enable Time
ns
Output Disable Time
1.6
1.6
6.5
6.5
ns
Pin-to-Pin Skew
1.6
ns
for HL Transitions (Note 5)
Pin-to-Pin Skew
for LH Transitions (Note 5)
t
OSLH
1.0
ns
t
OST
Pin-to-Pin Skew
for HL/LH Transitions (Note 5)
3.5
ns
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相關(guān)代理商/技術(shù)參數(shù) |
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| 74FR244SCX | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buf/Line Drv RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74FR244SJ | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buf/Line Drv RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74FR244SJ_Q | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buf/Line Drv RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74FR244SJX | 功能描述:緩沖器和線路驅(qū)動(dòng)器 Octal Buf/Line Drv RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74FR245 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Octal Bidirectional Transceiver with 3-STATE Outputs |
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