Datasheet > 74HC688U

74HC688U

更新时间： 2023-06-15 00:00:00

品牌	Logo	应用领域
恩智浦 - NXP		输出元件
页数	文件大小	规格书
7页	48K
描述
IC HC/UH SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, UUC, CHIP ON WAFER, Arithmetic Circuit

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74HC688U 数据手册

Philips Semiconductors

Product speciﬁcation

8-bit magnitude comparator

74HC/HCT688

AC WAVEFORMS

(1) HC : V_M= 50%; V_I= GND to V_CC

HCT: V_M= 1.3 V; V_I= GND to 3 V.

Fig.7 Waveforms showing the word inputs (P_n, Q_n)

to the equal to output (P = Q) propagation

delays and the output transition times.

Fig.6 Waveforms showing the enable input (E) to

the equal to output (P = Q) propagation

delays and the output transition times.

APPLICATION INFORMATION

Two or more “688” 8-bit magnitude comparators may be cascaded to compare binary or BCD numbers of more than 8

bits. An example is shown in Fig.8.

Fig.8 Binary or BCD comparator.

PACKAGE OUTLINES

See “74HC/HCT/HCU/HCMOS Logic Package Outlines”.

December 1990

1...4 5 67

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