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參數(shù)資料
| 型號(hào)： | HC646 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Octal bus transceiver/register; 3-state |
| 中文描述： | 八路總線收發(fā)器/冊(cè);三態(tài) |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大小： | 91K |
| 代理商： | HC646 |
September 1993
7
Philips Semiconductors
Product specication
Octal bus transceiver/register; 3-state
74HC/HCT646
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (
ICC) for a unit load of 1 is given in the family specifications.
To determine
ICC per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
UNIT LOAD COEFFICIENT
SAB, SBA
0.60
A0 to A7 and B0 to B7
0.75
INPUT
UNIT LOAD COEFFICIENT
CPAB,CPBA
1.50
OE
DIR
1.50
1.25
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