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參數資料
| 型號： | 933794870602 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 計數移位寄存器 |
| 英文描述： | F/FAST SERIES, 8-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDIP20 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001, SC-603, SOT-146-1, DIP-20 |
| 文件頁數： | 6/12頁 |
| 文件大?。?/td> | 148K |
| 代理商： | 933794870602 |
Philips Semiconductors
Product data
74F299
8-bit universal shift/storage register (3-State)
2003 Feb 05
3
LOGIC SYMBOL
11
18
713
6
14
515
4
16
1
19
12
9
2
3
Q0
Q7
DS0
DS7
I/00
I/O2
I/O4
I/O6
I/O1
I/O3
I/O5
I/O7
S0
S1
CP
OE0
OE1
MR
VCC = Pin 20
GND = Pin 10
8
17
SF00866
LOGIC SYMBOL (IEEE/IEC)
SF00890
&
3EN13
C4/1
→ /2←
9
4R
11
7
6
14
5
15
4
3
12
19
17
8
SRG8
1, 4D
2
1
0
3
M
0
1
3, 4D
5, 13
13
3, 4D
6, 13
3, 4D
12, 13
2, 4D
16
18
Z5
Z6
Z12
FUNCTION TABLE
INPUTS
OPERATING MODE
OEn
MR
S1
S0
CP
OPERATING MODE
L
X
Asynchronous Reset; Q0 – Q7 = LOW
L
H
↑
Parallel load; I/On
→ Qn (I/On outputs disabled)
L
H
L
H
↑
Shift right; DS0
→ Q0, Q0 → Q1, etc.
L
H
L
↑
Shift left; DS7
→ Q7, Q7 → Q6, etc.
L
H
L
X
Hold
H
X
Outputs in High-Z
H = HIGH voltage level
L = LOW voltage level
X = Don’t care
↑ = LOW-to-HIGH clock transition
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