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參數資料
| 型號： | MC74HC646N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal 3-State Bus Transeceivers and D Flip-Flops |
| 中文描述： | HC/UH SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數： | 6/14頁 |
| 文件大小： | 328K |
| 代理商： | MC74HC646N |
MC54/74HC646
MOTOROLA
High–Speed CMOS Logic Data
DL129 — Rev 6
3–6
BUS
A
A
FLIP–
FLOPS
B
FLIP–
FLOPS
CONTROL
LOGIC
CONTROL
LOGIC
(3)
(21)
(1)
(23)
(2)
(22)
DIRECTION OUTPUT
ENABLE
A–TO–B
CLOCK
B–TO–A
CLOCK
A–TO–B
SOURCE
B–TO–A
SOURCE
X
H
X
X
CONTROL
PINS
(3)
(21)
(1)
(23)
(2)
(22)
DIRECTION
OUTPUT
ENABLE
A–TO–B
CLOCK
B–TO–A
CLOCK
A–TO–B
SOURCE
B–TO–A
SOURCE
H
L
L
X
CONTROL
PINS
Data Storage From A and/or B Bus
Real–Time Transfer From Bus A to Bus B
CONTROL
LOGIC
X
X
TYPICAL APPLICATIONS
(3)
(21)
(1)
(23)
(2)
(22)
DIRECTION
OUTPUT
ENABLE
A–TO–B
CLOCK
B–TO–A
CLOCK
A–TO–B
SOURCE
B–TO–A
SOURCE
L
L
X
L
CONTROL
PINS
Real–Time Transfer From Bus B to Bus A
X
X
BUS
B
BUS
A
BUS
B
A
FLIP–
FLOPS
B
FLIP–
FLOPS
BUS
A
A
FLIP–
FLOPS
B
FLIP–
FLOPS
BUS
B
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