MM74HC74AMX

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MM74HC74AMX

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IC FF D-TYPE DUAL 1BIT 14SOIC

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  • メーカー品番 #MM74HC74AMX

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仕様

属性
Supplier onsemi
Package Tape & Reel (TR),Cut Tape (CT)
Series 74HC
ProductStatus Active
Function Set(Preset) and Reset
Type D-Type
OutputType Complementary
NumberofElements 2
NumberofBitsperElement 1
ClockFrequency 94 MHz
MaxPropagationDelay@VMaxCL 19ns @ 6V, 50pF
TriggerType Positive Edge
Current-OutputHighLow 5.2mA, 5.2mA
Voltage-Supply 2V ~ 6V
Current-Quiescent(Iq) 4 µA
InputCapacitance 5 pF
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
SupplierDevicePackage 14-SOIC

概要

Description

The MM74HC74AMX is a CMOS dual D-type flip-flop in the 74HC family. Each of the two flip-flops has:
- Inputs: D, CP (clock, rising edge), PRE (asynchronous preset), CLR (asynchronous clear)
- Outputs: Q and Q̅ (complement)
How it works:
- If PRE is low, Q is set to 1 regardless of D.
- If CLR is low, Q is cleared to 0 regardless of D.
- When PRE and CLR are both high, Q follows D on the rising edge of CP (positive-edge triggered).
Notes:
- PRE and CLR are typically active-low (inverted bubbles on schematic).
- If both PRE and CLR are low at the same time, the outputs are undefined.
- Supply voltage Vcc is commonly 2–6 V; characteristic timing (setup/hold, tpd) varies with Vcc and temperature.
- Package variants like AMX denote a specific 14-pin CMOS package (SOIC/TSSOP family).
Common uses: data storage, small registers, shift registers, timing circuits, and simple counters. Always consult the datasheet for exact pinout and timing specs.

Equivalent

MM74HC74AMX is a dual D-type flip-flop with asynchronous clear and preset (HC family). Equivalents: TI SN74HC74; 74HC74 (NXP/ST/Onsemi); 74HCT74 (TTL-compatible inputs); 74AC74; 74LVC2G74 (low-voltage CMOS).

Features

Here are the key features of MM74HC74AMX (dual D-type flip-flop):
- Dual, positive-edge-triggered D-type flip-flops (two independent sections).
- Asynchronous preset (PRE) and clear (CLR) for each flip-flop (active LOW).
- Each flip-flop has D, CLK, PRE, CLR inputs; outputs Q and Q̄.
- Two independent clock inputs (one per flip-flop) for flexible timing.
- CMOS technology; wide supply range 2V to 6V; low power consumption.
- High-speed CMOS performance suitable for MHz-range operation (depends on Vcc).
- Industrial temperature range (typically -40°C to +125°C).
- Package variant MM74HC74AMX (14-pin) in AMX/SMT package formats.
Common uses: clocked storage, counters, toggling/dividing circuits, and shift-register-like applications.

Pinout

Pin count: 14 pins (14-pin package).
Function: Dual D-type, positive-edge-triggered flip-flop with asynchronous preset and clear. Each flip-flop has D, clock (CP), preset (PRE), clear (CLR) inputs and Q and Q̅ outputs (two flip-flops per package).

Manufacturer

- Manufacturer: ON Semiconductor (onsemi).
- What kind of company: A global semiconductor company that designs, manufactures, and sells energy‑efficient integrated circuits, discretes, sensors, and related semiconductor components for automotive, industrial, consumer, and communications markets.

Application

MM74HC74AMX is a dual D-type flip-flop (positive-edge triggered) with asynchronous preset and clear. Typical applications:
- Data storage and registers (parallel-in/parallel-out) in digital systems
- Timing and sequencing: state machines, counters, timing control logic
- Frequency division and clocking circuits (e.g., divide-by-2 using Q or Q̄)
- Shift registers and serial/parallel data handling
- Clock-domain data synchronization in simple systems (with proper handling of metastability and resets)

Package

MM74HC74AMX is in a 14-pin molded Small Outline IC package (SOIC). The “MX” suffix denotes the MX/SOIC package variant.

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