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參數(shù)資料
| 型號： | 74HCT7540 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Dual 4-Input Positive-AND Gates 14-SOIC -40 to 85 |
| 中文描述： | 雙4輸入正與門，14-SOIC封裝，工作溫度-40℃到85℃ |
| 文件頁數(shù)： | 6/7頁 |
| 文件大?。?/td> | 55K |
| 代理商： | 74HCT7540 |
December 1990
6
Philips Semiconductors
Product specification
Octal Schmitt trigger buffer/line driver;
3-state; inverting
74HC/HCT7540
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Transfer characteristics are given below (not applicable for OE
n
inputs).
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
TRANSFER CHARACTERISTICS FOR 74HCT
Voltages are referred to GND (ground = 0 V)
INPUT
UNIT LOAD
OE
1
OE
2
A
n
1.30
1.30
0.20
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
A
n
to Y
n
3-state output enable time
OE
n
to Y
n
3-state output disable time
OE
n
to Y
n
output transition time
19
32
40
48
ns
4.5
Fig.8
t
PZH
/ t
PZL
19
32
40
48
ns
4.5
Fig.9
t
PHZ
/ t
PLZ
20
32
40
48
ns
4.5
Fig.9
t
THL
/ t
TLH
5
12
15
18
ns
4.5
Fig.8
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.
V
T
+
positive-going threshold
2.0
2.1
2.0
2.1
2.0
2.1
V
4.5
5.5
4.5
5.5
4.5
5.5
Figs 6 and 7
V
T
negative-going threshold
0.70
0.80
0.17
0.17
0.64
0.74
0.60
0.70
V
Figs 6 and 7
V
H
hysteresis (V
T
+
V
T
)
0.23
0.23
V
Figs 6 and 7
相關PDF資料 |
PDF描述 |
|---|---|
| 74HC7541 | Octal Schmitt trigger buffer/line driver; 3-state |
| 74HCT7541 | Dual 4-Input Positive-AND Gates 14-SOIC -40 to 85 |
| 74HC7597 | 8-bit shift register with input latches |
| 74HCT7597 | Dual 4-Input Positive-AND Gates 14-SOIC -40 to 85 |
| 74HC7731 | Quad 64-bit static shift register |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 74HCT7540D | 功能描述:緩沖器和線路驅動器 OCT SCHM TRIG BUF LINE DR INV 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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74HCT7540D,112 | 功能描述:緩沖器和線路驅動器 OCT SCHM TRIG BUF 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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74HCT7540D,118 | 功能描述:緩沖器和線路驅動器 OCT SCHM TRIG BUF 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 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| 74HCT7540D112 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| 74HCT7540DT | 制造商:NXP Semiconductors 功能描述: |
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