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參數(shù)資料
| 型號(hào)： | 74HCT244 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Octal buffer/line driver; 3-state |
| 中文描述： | 八路緩沖器/線路驅(qū)動(dòng)器，3態(tài) |
| 文件頁(yè)數(shù)： | 6/7頁(yè) |
| 文件大?。?/td> | 39K |
| 代理商： | 74HCT244 |
December 1990
6
Philips Semiconductors
Product specification
Octal buffer/line driver; 3-state
74HC/HCT244
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: bus driver
I
CC
category: MSI
Note to HCT types
The value of additional quiescent supply current (
I
CC
) for a unit load of 1 is given in the family specifications.
To determine
I
CC
per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
INPUT
UNIT LOAD COEFFICIENT
1A
n
2A
n
1OE
2OE
0.70
0.70
0.70
0.70
SYMBOL
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
WAVEFORMS
+
25
40 to
+
85
40 to
+
125
min.
typ.
max. min. max. min.
max.
t
PHL
/ t
PLH
propagation delay
1A
n
to 1Y
n;
2A
n
to 2Y
n
3-state output enable time
1OE to 1Y
n;
2OE to 2Y
n
3-state output disable time
1OE to 1Y
n;
2OE to 2Y
n
output transition time
13
22
28
33
ns
4.5
Fig.5
t
PZH
/ t
PZL
15
30
38
45
ns
4.5
Fig.6
t
PHZ
/ t
PLZ
15
25
31
38
ns
4.5
Fig.6
t
THL
/ t
TLH
5
12
15
18
ns
4.5
Fig.5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74HCT244AD | 制造商:Motorola Inc 功能描述:BUFFER/DRIVER OCTAL NONINVERTING WITH 3-STATE OUTPUTS TTL-COMPATIBLE INPUTS |
| 74HCT244AN | 制造商:AVX Corporation 功能描述: |
| 74HCT244BQ | 制造商:NXP Semiconductors 功能描述:IC OCTAL BUFF/DVR 3-ST DHV |
| 74HCT244BQ,115 | 功能描述:緩沖器和線路驅(qū)動(dòng)器 OCTAL BUFFER 3-STATE 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 |
| 74HCT244BQ-G | 功能描述:緩沖器和線路驅(qū)動(dòng)器 OCTAL BUFFER 3-STATE 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 |
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