Használati útmutató Texas Instruments CD74HCT688M

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CDx4HC688, CDx4HCT688 High-Speed CMOS Logic 8-Bit Magnitude Comparator
1 Features
•Cascadable
•Fanout (over temperature range)
–Standard outputs: 10 LSTTL Loads
–Bus driver outputs: 15 LSTTL Loads
•Wide operating temperature range: –55 to 125℃ ℃
•Balanced propagation delay and transition times
•Significant power reduction compared to LSTTL
Logic ICs
•HC types
–2 V to 6 V operation
–High noise immunity: NIL = 30%, NIH = 30% of
VCC at VCC = 5 V
•HCT types
–4.5 V to 5.5 V operation
–Direct LSTTL input logic compatibility,
VIL = 0.8 V (max), VIH = 2 V (min)
–CMOS input compatibility, II ≤ 1 μA at VOL,VOH
2 Description
The ’HC688 and ’HCT688 are 8-bit magnitude
comparators designed for use in computer and logic
applications that require the comparison of two 8-bit
binary words. When the compared words are equal
the output (Y) is low and can be used as the enabling
input for the next device in a cascaded application.
Device Information
PART NUMBERPACKAGE(1) BODY SIZE (NOM)
CD74HC688MSOIC (20)12.80 mm × 7.50 mm
CD74HCT688MSOIC (20)12.80 mm × 7.50 mm
CD74HC688EPDIP (20)25.40 mm × 6.35 mm
CD74HCT688EPDIP (20)25.40 mm × 6.35 mm
CD74HC688NSRSO (20)15.00 mm × 5.30 mm
CD74HC688PWRTSSOP (20)6.50 mm × 4.40 mm
CD54HC688F3ACDIP (20)26.92 mm × 6.92 mm
CD54HCT688F3ACDIP (20)26.92 mm × 6.92 mm
(1)For all available packages, see the orderable addendum at
the end of the data sheet.
Y
E
A0
B0
A1
B1
A2
B2
A3
B3
A4
B4
A5
B5
A6
B6
A7
B7
Functional Diagram
CD54HC688, CD74HC688, CD54HCT688, CDHCT688
SCHS196D – SEPTEMBER 1997 – REVISED FEBRUARY 2022
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

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Termékspecifikációk

Márka: Texas Instruments
Kategória: nincs kategorizálva
Modell: CD74HCT688M

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