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參數(shù)資料
| 型號： | 933669070652 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | HC/UH SERIES, QUAD 1-BIT TRANSCEIVER, TRUE OUTPUT, PDIP14 |
| 封裝： | PLASTIC, DIP-14 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 49K |
| 代理商： | 933669070652 |
December 1990
5
Philips Semiconductors
Product specication
Quad bus transceiver; 3-state
74HC/HCT243
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr =tf = 6 ns; CL = 50 pF
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC
VCC
(V)
WAVEFORMS
+25
40 to +85 40 to +125
min.
typ.
max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
An to Bn;
Bn to An
22
8
6
90
18
15
115
23
20
135
27
23
ns
2.0
4.5
6.0
Fig.5
tPZH/ tPZL
3-state output enable time
OEA to An or Bn;
OEB to An or Bn
50
18
14
150
30
26
190
38
33
225
45
38
ns
2.0
4.5
6.0
Figs 6 and 7
tPHZ/ tPLZ
3-state output disable time
OEA to An or Bn;
OEB to An or Bn
61
22
18
165
33
28
205
41
35
250
50
43
ns
2.0
4.5
6.0
Figs 6 and 7
tTHL/ tTLH
output transition time
14
5
4
60
12
10
75
15
13
90
18
15
ns
2.0
4.5
6.0
Fig.5
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