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See Technical Specifications

M38510/31101B2A

4-Bit Magnitude Comparators

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

M38510/31101B2A
Datasheet:

M38510/31101B2A Datasheet (PDF)
Number of channels:

4
Technology family:

LS
Input type:

Schmitt-Trigger
Output type:

Push-Pull
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M38510/31101B2A General Description

These four-bit magnitude comparators perform comparison of straight binary and straight BCD (8-4-2-1) codes. Three fully decoded decisions about two 4-bit words (A, B) are made and are externally available at three outputs. These devices are fully expandable to any number of bits without external gates. Words of greater length may be compared by connecting comparators in cascade. The A > B, A < B, and A = B outputs of a stage handling less-significant bits are connected to the corresponding A > B, A < B, and A = B inputs of the next stage handling more-significant bits. The stage handling the least-significant bits must have a high-level voltage applied to the A = B input. The cascading paths of the '85, 'LS85, and 'S85 are implemented with only a two-gate-level delay to reduce overall comparison times for long words. An alternate method of cascading which further reduces the comparison time is shown in the typical application data.

Specifications

Number of channels	4	Technology family	LS
Input type	Schmitt-Trigger	Output type	Push-Pull
Features	High speed (tpd 10-50ns)	Operating temperature range (°C)	-55 to 125
Rating	Military	feature-type	Magnitude Comparator
feature-logic-family	LS	feature-number-of-bits	4
feature-polarity	Non-Inverting	feature-process-technology	Bipolar
feature-output-function	A<B, A=B, A>B	feature-output-type
feature-maximum-low-level-output-current-ma	4	feature-maximum-high-level-output-current-ma	-0.4
feature-minimum-operating-supply-voltage-v	4.5	feature-maximum-operating-supply-voltage-v	5.5
feature-packaging	Tube	feature-rad-hard	No
feature-pin-count	20	feature-cecc-qualified	No
feature-esd-protection		feature-escc-qualified
feature-military		feature-aec-qualified	No
feature-auto-motive	No	feature-p-pap	No
feature-eccn-code	EAR99	feature-svhc
feature-svhc-exceeds-threshold	No