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參數(shù)資料
| 型號(hào)： | 933670570652 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 計(jì)數(shù)移位寄存器 |
| 英文描述： | HC/UH SERIES, 8-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDIP20 |
| 封裝： | SOT-146-1, DIP-20 |
| 文件頁(yè)數(shù)： | 5/11頁(yè) |
| 文件大?。?/td> | 79K |
| 代理商： | 933670570652 |
December 1990
3
Philips Semiconductors
Product specication
8-bit universal shift register; 3-state
74HC/HCT299
PIN DESCRIPTION
PIN NO.
SYMBOL
NAME AND FUNCTION
1, 19
S0, S1
mode select inputs
2, 3
OE1, OE2
3-state output enable inputs (active LOW)
7, 13, 6, 14, 5, 15, 4, 16
I/O0 to I/O7
parallel data inputs or 3-state parallel outputs (bus driver)
8, 17
Q0, Q7
serial outputs (standard output)
9
MR
asynchronous master reset input (active LOW)
10
GND
ground (0 V)
11
DSR
serial data shift-right input
12
CP
clock input (LOW-to-HIGH, edge-triggered)
18
DSL
serial data shift-left input
20
VCC
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
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