參數(shù)資料
型號: 74HCT238DB,112
廠商: NXP Semiconductors
文件頁數(shù): 16/18頁
文件大?。?/td> 0K
描述: IC 3-8 LINE DECODER/DEMUX 16SSOP
產品培訓模塊: Logic Packages
標準包裝: 78
系列: 74HCT
類型: 解碼器/多路分解器
電路: 1 x 3:8
獨立電路: 1
電壓電源: 單電源
電源電壓: 4.5 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.209",5.30mm 寬)
供應商設備封裝: 16-SSOP
包裝: 管件
產品目錄頁面: 836 (CN2011-ZH PDF)
其它名稱: 568-2805-5
935189260112
74HC_HCT238_3
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 03 — 16 July 2007
7 of 18
NXP Semiconductors
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
10. Dynamic characteristics
ICC
supply current VI =VCC or GND;
VCC = 5.5 V; IO =0A
-
8.0
-
80
-
160
A
ICC
additional
supply current
per input pin;
VI =VCC 2.1 V;
other inputs at VCC or GND;
VCC = 4.5 V to 5.5 V;
IO =0A
An inputs
-
70
252
-
315
-
343
A
E1, E2 inputs
-
40
144
-
180
-
196
A
E3 input
-
145
522
-
653
-
711
A
CI
input
capacitance
-
3.5
-
pF
Table 6.
Static characteristics …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
25
°C
40 °C to +85 °C 40 °C to +125 °C Unit
Min
Typ
Max
Min
Max
Min
Max
Table 7.
Dynamic characteristics
GND = 0 V; test circuit see Figure 8.
Symbol Parameter
Conditions
25
°C
40 °C to +125 °C
Min
Typ
Max
(85
°C)
Max
(125
°C)
Unit
74HC238
tpd
propagation delay
An to Yn; see Figure 6
VCC = 2.0 V
-
47
150
190
225
ns
VCC = 4.5 V
-
17
30
38
45
ns
VCC = 5.0 V; CL =15pF
-
14
-
ns
VCC = 6.0 V
-
14
26
33
38
ns
E3 to Yn; see Figure 6
VCC = 2.0 V
-
52
160
200
240
ns
VCC = 4.5 V
-
19
32
40
48
ns
VCC = 5.0 V; CL =15pF
-
16
-
ns
VCC = 6.0 V
-
15
27
34
41
ns
En to Yn or see Figure 7
VCC = 2.0 V
-
50
155
195
235
ns
VCC = 4.5 V
-
18
31
39
47
ns
VCC = 5.0 V; CL =15pF
-
17
-
ns
VCC = 6.0 V
-
14
26
33
40
ns
tt
transition time
VCC = 2.0 V
-
19
75
95
110
ns
VCC = 4.5 V
-
7
15
19
22
ns
VCC = 6.0 V
-
6
13
16
19
ns
CPD
power dissipation
capacitance
per package; VI = GND to VCC
-72-
-
pF
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