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參數(shù)資料
| 型號： | 7HCT1284D |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | Parallel printer interface transceiver/buffer |
| 中文描述： | QUAD LINE TRANSCEIVER, PDSO20 |
| 封裝： | 7.50 MM, PLASTIC, SOL-20 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大?。?/td> | 138K |
| 代理商： | 7HCT1284D |
Philips Semiconductors
Product specification
74HCT1284
Parallel printer interface transceiver/buffer
1998 Jul 10
4
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
= 25
°
C
T
amb
= 0
°
C to +70
°
C
UNIT
MIN
TYP
MAX
MIN
MAX
A
n
V
CC
= Min to Max; I
OH
= –50
μ
A
V
CC
–0.2
V
CC
V
CC
–0.2
V
V
OH
High-level
output voltage
out ut voltage
V
CC
= 4.7V; I
OH
= –4mA
4.3
4.6
3.7
V
B
n
or Y
n
V
CC
= 4.7V; I
OH
= –14mA
2.6
2.9
2.4
V
Low-level
output voltage
A
V
CC
= Min to Max; I
OL
= 50
μ
A;
V
I
= V
IL
or V
IH
0
0.2
0.2
V
V
OL
n
V
CC
= 4.7V; I
OL
= 4mA; V
I
= V
IL
or V
IH
0.1
0.25
0.4
V
B
n
or Y
n
V
CC
= 4.7V; I
OL
= 14mA; V
I
= V
IL
or V
IH
0.15
0.3
0.4
V
V
HYS
Input Hysteresis
V
CC
= 5.0V
0.4
0.50
0.4
V
R
D
B/Y side Output
Impedance
See Figure 1
8
15
22
8
22
I
I
Input leakage current
(A5–A7)
V
CC
= 5.5V; V
O
= V
CC
or GND
±
0.5
±
1.0
±
5.0
μ
A
I
OFF
B/Y Side Power-off
leakage current
V
CC
= 0.0V; V
O
= 0 to 7V
±
1
±
10
±
100
μ
A
I
OZH
3-State output High
current Y
n
V
CC
= 5.5V; V
O
= V
CC
; V
I
= V
IL
or V
IH
1
5
20
μ
A
I
OZL
3-State output Low
current Y
n
current
(
A
1
– A
4
, B
n
)
current
(
A
1
– A
4
, B
n
)
V
CC
= 5.5V; V
O
= GND; V
I
= V
IL
or V
IH
–1
–5
–20
μ
A
I
IH
+I
OZH
V
CC
= 5.5V; V
I/O
= V
CC
1
5
25
μ
A
I
IL
+I
OZL
V
CC
= 5.5V; V
I/O
= GND
–1
–5
–25
μ
A
I
CC
Quiescent Supply
Current
V
CC
= 5.5V; I
O
= 0; V
I
= GND or V
CC
0.5
250
400
μ
A
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