MC74AC74DR2G

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MC74AC74DR2G

IC FF D-TYPE DUAL 1BIT 14SOIC

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Specifications

Supplier onsemi
Package Tape & Reel (TR),Cut Tape (CT)
Series 74AC
ProductStatus Active
Function Set(Preset) and Reset
Type D-Type
OutputType Complementary
NumberofElements 2
NumberofBitsperElement 1
ClockFrequency 160 MHz
MaxPropagationDelay@VMaxCL 10ns @ 5V, 50pF
TriggerType Positive Edge
Current-OutputHighLow 24mA, 24mA
Voltage-Supply 2V ~ 6V
Current-Quiescent(Iq) 4 µA
InputCapacitance 4.5 pF
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
SupplierDevicePackage 14-SOIC

Overview

Description

MC74AC74DR2G is a dual, D-type, positive-edge-triggered flip-flop with asynchronous preset and clear. Each of the two flip-flops (A and B) has: D input, clock (CLK), Q and Q̅ outputs, and asynchronous PRE (set) and CLR (reset) inputs. Operation: when PRE is low, Q goes high; when CLR is low, Q goes low; when PRE and CLR are both high, on a rising edge of CLK the Q output follows D. Q̅ is the complement of Q. This device is from the 74AC family (high-speed CMOS), typically operating from a supply in the 2.0–5.5 V range with low static power and CMOS-compatible inputs. Package DR2G denotes a specific surface-mount package variant (14-pin). Common uses include data storage/registers, shift registers, timing and synchronization circuits, and state machines. For exact pinout, timing, and electrical specs, refer to the datasheet.

Features

MC74AC74DR2G features:
- Dual D-type flip-flops, positive-edge triggered
- Independent asynchronous inputs: preset (P) and clear (CLR) active-low
- Q and Q̄ outputs for each flip-flop
- Wide supply voltage range (CMOS): typically 2.0 V to 6.0 V
- Low-power CMOS technology with high noise margin
- High-speed operation with standard CMOS I/O
- DR2G package option (compact dual-flip-flop device) suitable for synchronous logic designs

Package

14-pin SOIC (D‑package), RoHS compliant (G), with tape‑and‑reel packaging (R2).

Pinout

Pin count: 14 pins (DIP-14/SOIC-14; package code DR2G).
Function: Dual D-type, positive-edge-triggered flip-flop with asynchronous active-low preset (PRE) and clear (CLR). Each flip-flop has D, CP (clock), PRE, CLR inputs and Q, Q̄ outputs. On rising edge of CP, Q follows D; PRE asynchronously sets Q to 1; CLR asynchronously clears Q to 0; Q̄ is the complement. Two independent flip-flops in one package.

Manufacturer

Manufacturer: ON Semiconductor.
What kind of company: A global American semiconductor company that designs, manufactures, and markets integrated circuits and other silicon devices for automotive, industrial, communications, computing, and consumer markets.

Application

MC74AC74DR2G is a dual D-type positive-edge-triggered flip-flop with asynchronous clear (CLR) and preset (PRE). Common applications: data storage and registers in digital systems; edge-triggered storage for pipelines; shift registers and sequence generation; simple counters and state machines; clocked data synchronization and timing control; initialization of flip-flops using PRE/CLR.

Equivalent

Equivalent parts (same function: dual D flip-flop with async clear/preset):
- TI SN74AC74 (and SN74AC74DR/DR2G in similar packaging)
- NXP/ON Semiconductor 74AC74
- 74HC74 (CMOS)
- SN74ACT74
- 74HCT74 (TTL-compatible)
Note: verify Vcc range, input thresholds, and exact pinout before substitution.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

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