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IC Parameter Comparison

Compare common ICs side by side — channels, supply, current and package — to shortlist the right part.

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What it does: Compare the parameters of common op-amps, comparators, regulators, logic, timers, drivers and interface ICs.

When to use it: When you are choosing between similar parts and want the facts (supply, channels, current, package) in one place.

Parameters come from this site’s verified ICS library and each part’s datasheet — for production, confirm against the physical part’s datasheet. Pinouts are not shown here; click a part name to open its pinout page.

Looking for a substitute? Find your part’s category table below and pick an equivalent by parameter — then verify the swap against both datasheets. For alternates across all manufacturers, use the cross-reference finder.

✓ primary-verified ◐ family-confirmed ⚠ 参数待核实 (provisional)

Op-amps

General-purpose and audio operational amplifiers. Pick by channel count, supply type and input technology.

Part	Channels	Supply range	Input / type	Package	Notable
LM358	2	3–30V single (36V B/BA)	Bipolar	DIP-8	Cheap, single-supply jellybean
LM324	4	3–30V single	Bipolar	DIP-14	Quad version of the LM358
LM741	1	±5 to ±22V (10–44V)	Bipolar	DIP-8	Classic; dual supply; offset-null pins
TL072	2	±2.25 to ±20V	JFET	DIP-8	Low-noise, high input-Z, audio
NE5532	2	±5 to ±15V rec.	Bipolar	DIP-8	Low-noise audio op-amp
LM386	1 (power)	4–12V / 5–18V	Power amp	DIP-8	~700 mW audio amp into a speaker

Comparators

Voltage comparators. All have open-collector/open-drain outputs that need a pull-up resistor.

Part	Channels	Output	Supply range	Package	Notable
LM393	2	Open-collector	2–36V	DIP-8	Needs pull-up resistor
LM339	4	Open-collector	2–30V	DIP-14	Quad version of the LM393
LM2903 ◐	2	Open-collector	2–36V	DIP-8	Automotive-grade LM393

Linear regulators

Fixed and adjustable linear regulators. Involves real hardware — confirm pinout and dropout per the datasheet.

Part	Type	Output	Max current	Package	Notable
LM7805	Fixed linear	5V	1.5A	TO-220	78xx family
L7812 ◐	Fixed linear	12V	1.5A	TO-220	78xx family
78L05 ◐	Fixed linear	5V	100 mA	TO-92	78L low-power series
LM317	Adjustable	1.25–37V	1.5A	TO-220	Vout = 1.25·(1+R2/R1)

Logic — 74HC family

High-speed CMOS logic. The whole 74HC family runs on 2–6V; pick by function and pin count.

Part	Function	Supply	Package	Notable
74HC00	Quad 2-input NAND	2–6V	DIP-14	“Universal” gate
74HC02 ◐	Quad 2-input NOR	2–6V	DIP-14	Output-first layout
74HC04	Hex inverter (6×)	2–6V	DIP-14	6 NOT gates
74HC08 ◐	Quad 2-input AND	2–6V	DIP-14	—
74HC32 ◐	Quad 2-input OR	2–6V	DIP-14	—
74HC86 ◐	Quad 2-input XOR	2–6V	DIP-14	—
74HC74	Dual D flip-flop	2–6V	DIP-14	Async preset/clear
74HC138	3-to-8 decoder	2–6V	DIP-16	Active-low outputs
74HC139 ◐	Dual 2-to-4 decoder	2–6V	DIP-16	Active-low outputs
74HC165	8-bit PISO shift reg	2–6V	DIP-16	Input expansion
74HC595	8-bit SIPO shift reg	2–6V	DIP-16	Output expansion
74HC245	Octal bus transceiver	2–6V	DIP-20	DIR + /OE control
74HC161 ◐	4-bit sync counter	2–6V	DIP-16	Async clear
74HC163 ◐	4-bit sync counter	2–6V	DIP-16	Sync clear
74HC4051 ◐	8-ch analog mux	2–6V	DIP-16	Bidirectional

Logic — CD4000B (CMOS)

Classic 4000-series CMOS. Wider 3–18V supply, slower than 74HC; do not leave inputs floating.

Part	Function	Supply	Package	Notable
CD4011 ◐	Quad 2-input NAND	3–18V	DIP-14	4000-series NAND
CD4013 ◐	Dual D flip-flop	3–18V	DIP-14	Set/Reset active-high
CD4017	Decade counter	3–18V	DIP-16	10 decoded outputs
CD4511	BCD→7-seg driver	3–18V	DIP-16	Drives common-cathode

Timers (555)

555-type timing ICs. Choose bipolar (more output drive) vs CMOS (lower power, higher frequency).

Part	Timers	Supply	Type	Package	Notable
NE555	1	4.5–16V	Bipolar	DIP-8	The classic 555
NE556	2	4.5–16V	Bipolar	DIP-14	Dual 555
TLC555	1	2–15V	CMOS	DIP-8	Low-power, up to ~2 MHz

Drivers

Current-sink Darlington arrays and a motor H-bridge for relays, steppers and DC motors.

Part	Type	Channels	Max current	Package	Notable
ULN2003	Darlington array	7	500 mA/ch	DIP-16	Open-collector + clamp diodes
ULN2803 ◐	Darlington array	8	500 mA/ch	DIP-18	8-channel ULN2003
L293D ⚠	Dual H-bridge	2 motors	600 mA/ch	DIP-16	Bidirectional DC-motor driver

Interface (RS-232 / RS-485)

Serial line transceivers. Match the standard (RS-232 point-to-point vs RS-485 multi-drop) and the supply.

Part	Function	Supply	Package	Notable
MAX232	RS-232 (2 drv / 2 rcv)	5V	DIP-16	On-chip charge pump
MAX3232 ◐	RS-232 (2 drv / 2 rcv)	3–5.5V	DIP-16	3.3V-capable MAX232
SN75176	RS-485 transceiver	5V	DIP-8	Half-duplex differential

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How to

How to use the parameter comparison

Find the category, compare the columns, then open the part for its pinout.

01

Find your category

Jump to the table for the kind of part you are choosing — op-amp, comparator, regulator, 74HC / CD4000 logic, timer, driver or interface.
02

Compare the parameters

Scan the columns — channels, supply range, current, package — and shortlist the parts that fit your requirement.
03

Open the part for its pinout

Click a part name to open its pinout page and datasheet. Pinouts are not shown in this table — verify them on the part page before wiring.

Reference

How to read the evidence marks

Each row carries an evidence level so verified and provisional data are never mixed.

Mark	Meaning
✓ (no mark)	Parameter primary-verified — Cross-checked against the manufacturer’s own product page (2026-06-04).
◐ family	Family-confirmed — Inherited from a primary-verified part of the same family (e.g. all 74HC = 2–6V).
⚠ 参数待核实	参数待核实 / Not web-verified — Vendor page blocked or PDF-only; shown for completeness, treat as provisional.

Evidence levels per the ICS verification report (ics-核实报告.md §6).

FAQ

Common questions, answered in 3 minutes

Why are pinouts not in this comparison table?

Because the pinouts in our database were not independently primary-verified (manufacturer datasheets are PDFs our tooling cannot read). To avoid spreading unverified data, pin assignments are deliberately kept out of this table. Click a part name to open its dedicated pinout page and the datasheet, and always confirm the pinout against the physical part before wiring.

Where do these parameters come from?

From this site’s verified ICS library plus each part’s datasheet. 26 anchor parts were cross-checked against the manufacturer’s own product page on 2026-06-04; rows inherited from a verified family member are marked “◐ family”, and any row that could not be web-verified is marked “⚠ 参数待核实”. Nothing is fabricated.

What does the “参数待核实” mark mean?

That row’s manufacturer page was blocked or available only as a PDF, so its parameters could not be cross-checked online. It is shown for completeness but should be treated as provisional — confirm it against the datasheet before relying on it.

How is this different from the Selection Matrix?

This page shows the factual parameters side by side. The Component Selection Matrix lets you weight the criteria that matter to you and score candidates to reach a decision. Use this table to gather the facts, then take the shortlist into the matrix to choose.

Data Provenance

Standards and sources referenced by this tool

Item	Value / Formula	Source
Parameters	`Channels / supply / current / package`	Verified ICS library + datasheets
Primary cross-check	`26 anchor parts vs manufacturer product pages`	ics-核实报告.md §6 (2026-06-04)
Pinouts	`Not included (see each part page)`	Per part datasheet

Parameters are from this site’s verified ICS library and each part’s datasheet; pinouts are intentionally excluded because they were not primary-verified. For production, confirm every spec — and the pinout — against the physical part’s datasheet.