Request Quote
(Ships tomorrow)
PI74FCT2244ATQ Equivalent & Substitute Parts
Part Overview
The PI74FCT2244ATQ is a non-inverting buffer logic IC manufactured by Diodes Incorporated, featuring 2 elements with 4 bits per element and 3-state output capability. This component operates within the 4.75V to 5.25V supply voltage range and is housed in a 20-QSOP package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | PI74FCT2244ATQ |
| Manufacturer | Diodes Incorporated |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | 3-State |
| Current - Output High, Low | 15mA, 64mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.154", 3.90mm Width) |
| Product Status | Obsolete |
| RoHS Status | RoHS non-compliant |
Substitute Part Grouping Explanation
Substitution for the PI74FCT2244ATQ is determined by strict equivalence across the following critical parameters:
- Logic Type: Buffer, Non-Inverting
- Number of Elements: 2
- Number of Bits per Element: 4
- Output Type: 3-State
- Voltage - Supply: 4.75V ~ 5.25V
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 20-SSOP (0.154", 3.90mm Width)
Substitute parts are categorized into two groups:
MFR Recommended Substitutes (Texas Instruments CY74FCT series): These parts maintain full parametric compatibility with the original PI74FCT2244ATQ across all critical electrical and mechanical specifications. All MFR recommended substitutes are active products with RoHS3 compliance and improved moisture sensitivity ratings.
Parametric Equivalents (IDT 74FCT244 series): These parts provide functional equivalence with identical logic configuration, output characteristics, and package dimensions. Parametric equivalents maintain the same electrical performance envelope as the original part.
Parameter Comparison
| Parameter | PI74FCT2244ATQ (Original) | CY74FCT2244ATQCT | CY74FCT2244CTQCT | CY74FCT2244TQCT | CY74FCT244ATQCT | CY74FCT244CTQCT | CY74FCT244TQCT | 74FCT244ATQG | 74FCT244CTQG |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Diodes Inc. | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | IDT | IDT |
| Logic Type | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting |
| Number of Elements | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Number of Bits per Element | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Output Type | 3-State | 3-State | 3-State | 3-State | 3-State | 3-State | 3-State | 3-State | 3-State |
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP |
| Current - Output High, Low | 15mA, 64mA | 15mA, 12mA | 15mA, 12mA | 15mA, 12mA | 32mA, 64mA | 32mA, 64mA | 32mA, 64mA | 15mA, 64mA | 15mA, 64mA |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | Not specified | Not specified |
Engineering Selection Recommendations
For applications requiring direct replacement of the PI74FCT2244ATQ, the Texas Instruments CY74FCT2244ATQCT, CY74FCT2244CTQCT, and CY74FCT2244TQCT are the primary MFR recommended substitutes. These parts maintain active product status and provide RoHS3 compliance, addressing regulatory requirements for new designs and system upgrades.
The CY74FCT244 series variants (CY74FCT244ATQCT, CY74FCT244CTQCT, CY74FCT244TQCT) offer alternative output current specifications while maintaining full compatibility across all other critical parameters. Selection between these variants depends on specific output drive requirements within the application circuit.
The IDT 74FCT244 series (74FCT244ATQG, 74FCT244CTQG) provides parametric equivalence with identical output current characteristics matching the original PI74FCT2244ATQ. These parts are suitable for applications where output drive specifications are critical to circuit performance.
All substitute options maintain identical logic configuration, supply voltage range, operating temperature range, and package dimensions, ensuring direct functional replacement without circuit redesign.
Frequently Asked Questions (FAQ)
Q: Can the CY74FCT2244ATQCT directly replace the PI74FCT2244ATQ?
A: Yes. The CY74FCT2244ATQCT maintains full parametric compatibility across logic type, element count, bit configuration, output type, supply voltage, operating temperature, mounting type, and package dimensions. The primary differences are product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).
Q: What is the difference between CY74FCT2244 and CY74FCT244 variants?
A: Both series maintain identical logic configuration and package specifications. The CY74FCT244 variants feature different output current specifications (32mA high, 64mA low) compared to CY74FCT2244 variants (15mA high, 12mA low). Selection depends on the output drive requirements of the target application.
Q: Are there differences in output current between the original PI74FCT2244ATQ and substitute parts?
A: Yes. The original PI74FCT2244ATQ specifies 15mA output high and 64mA output low. The CY74FCT2244 series specifies 15mA high and 12mA low. The CY74FCT244 series and IDT 74FCT244 series match the original specification at 15mA high and 64mA low. Output current requirements should be evaluated against circuit load specifications.
Q: What packaging options are available for substitute parts?
A: Texas Instruments CY74FCT series substitutes are available in Cut Tape (CT) and Tape & Reel (TR) packaging. IDT 74FCT244 series parts are supplied in Bulk packaging. All maintain the 20-SSOP package form factor.
Q: Is RoHS compliance a factor in selecting a substitute?
A: The original PI74FCT2244ATQ is RoHS non-compliant. All Texas Instruments CY74FCT series substitutes are ROHS3 compliant. For new designs or systems subject to RoHS requirements, Texas Instruments substitutes are the appropriate selection.
Q: Can parametric equivalent parts from IDT be used interchangeably with MFR recommended substitutes?
A: Yes, within the constraints of output current specifications. IDT 74FCT244ATQG and 74FCT244CTQG maintain identical output current characteristics (15mA high, 64mA low) to the original PI74FCT2244ATQ. All parts share identical logic configuration, supply voltage, operating temperature, and package specifications.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts