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參數(shù)資料
| 型號(hào)： | HCT251 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Zener Diode; Zener Voltage Typ, Vz:2.4V; Vz Test Current, Izt:20mA; Power Dissipation, Pd:500mW; Package/Case:DO-35; Breakdown Voltage Max:1.1V; Mounting Type:Through Hole; Terminal Type:Axial Leaded |
| 中文描述： | 8輸入多路復(fù)用器，三態(tài) |
| 文件頁數(shù)： | 6/7頁 |
| 文件大?。?/td> | 53K |
| 代理商： | HCT251 |
December 1990
6
Philips Semiconductors
Product specification
8-input multiplexer; 3-state
74HC/HCT251
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
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 HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
INPUT
UNIT LOAD COEFFICIENT
I
n
S
0
S
1
, S
2
OE
1.00
1.50
1.50
1.50
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
I
n
to Y
propagation delay
I
n
to Y
propagation delay
S
n
to Y
propagation delay
S
n
to Y
3-state output enable time
OE to Y, Y
3-state output disable time
OE to Y, Y
output transition time
22
35
44
53
ns
4.5
Fig.6
t
PHL
/ t
PLH
22
35
44
53
ns
4.5
Fig.7
t
PHL
/ t
PLH
24
44
55
66
ns
4.5
Fig.6
t
PHL
/ t
PLH
25
44
55
66
ns
4.5
Fig.7
t
PZH
/ t
PZL
13
28
35
42
ns
4.5
Fig.7
t
PHZ
/ t
PLZ
14
28
35
42
ns
4.5
Fig.7
t
THL
/ t
TLH
7
15
19
22
ns
4.5
Figs 6 and 7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HCT259 | Zener Diode; Zener Voltage Typ, Vz:2.7V; Vz Test Current, Izt:20mA; Power Dissipation, Pd:500mW; Package/Case:DO-35; Breakdown Voltage Max:2.7V; Forward Current:200A; Leakage Current Max:100uA; Mounting Type:Through Hole |
| HCT4015 | Dual 4-bit serial-in/parallel-out shift register |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HCT251341 | 制造商:Hubbell Wiring Device-Kellems 功能描述:CABLETRAK, KIT WITH BTKTS, 1' |
| HCT25134K | 制造商:Hubbell Wiring Device-Kellems 功能描述:CABLETRAK, EXT KIT, 4.5' |
| HCT252341 | 制造商:Hubbell Wiring Device-Kellems 功能描述:CABLETRAK, KIT WITH BTKTS, 1' |
| HCT25234K | 制造商:Hubbell Wiring Device-Kellems 功能描述:CABLETRAK, EXT KIT, 4.5' |
| HCT252471 | 制造商:Hubbell Wiring Device-Kellems 功能描述:CABLETRAK, EXT KIT, 1' |
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