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74FCT162245CTPVCG4 Equivalent & Substitute Parts
Part Overview
The 74FCT162245CTPVCG4 is a non-inverting transceiver logic IC manufactured by Texas Instruments, featuring 2 elements with 8 bits per element and 3-state output capability. This 48-SSOP surface mount device operates across a 4.5V to 5.5V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 8 |
| Output Type | 3-State |
| Current - Output High, Low | 24mA, 24mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 48-BSSOP (0.295", 7.50mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 74FCT162245CTPVCG4 is determined by the following critical parameters:
- Logic type and function (non-inverting transceiver)
- Number of elements (2) and bits per element (8)
- Output type (3-state)
- Output current capability (24mA minimum for both high and low)
- Supply voltage range (4.5V ~ 5.5V)
- Operating temperature range (-40°C ~ 85°C)
- Surface mount packaging with compatible pinout
Substitute parts are grouped into two categories based on package compatibility:
Category A: 48-SSOP Package (0.295", 7.50mm Width) — Direct pin-compatible replacements with identical package dimensions.
Category B: 48-TSSOP Package (0.240", 6.10mm Width) — Functionally equivalent but with different package footprint; requires PCB layout modification.
Parts with output current specifications exceeding 24mA (32mA/64mA) are electrically compatible but represent enhanced performance variants.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Series | Logic Type | Elements / Bits | Output Current (H/L) | Supply Voltage | Operating Temp | Package / Case | Product Status |
|---|---|---|---|---|---|---|---|---|---|
| 74FCT162245CTPVCG4 | Texas Instruments | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 24mA, 24mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP (0.295", 7.50mm) | Discontinued |
| 74ACT16245DL | Texas Instruments | 74ACT | Transceiver, Non-Inverting | 2 / 8 | 24mA, 24mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP (0.295", 7.50mm) | Last Time Buy |
| CY74FCT162245TPVC | National Semiconductor | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 24mA, 24mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP (0.295", 7.50mm) | Active |
| 74FCT162245ATPAG | Renesas Electronics | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 24mA, 24mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-TFSOP (0.240", 6.10mm) | Obsolete |
| 74FCT162245CTPAG | IDT | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 24mA, 24mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-TFSOP (0.240", 6.10mm) | Active |
| 74FCT162245CTPAG8 | IDT | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 24mA, 24mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-TFSOP (0.240", 6.10mm) | Active |
| 74FCT16245ATPAG | IDT | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-TFSOP (0.240", 6.10mm) | Active |
| 74FCT16245ATPAG8 | Renesas Electronics | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-TFSOP (0.240", 6.10mm) | Active |
| 74FCT16245ATPVG | IDT | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-BSSOP (0.295", 7.50mm) | Active |
| 74FCT16245CTPAG | Renesas Electronics | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 32mA, 64mA | 4.5V ~ 5.5V | -40°C ~ 85°C | 48-TFSOP (0.240", 6.10mm) | Active |
| 74FCT163245CPVG | Renesas Electronics | 74FCT | Transceiver, Non-Inverting | 2 / 8 | 8mA, 24mA | 2.7V ~ 3.6V | -40°C ~ 85°C | 48-BSSOP (0.295", 7.50mm) | Obsolete |
Engineering Selection Recommendations
Primary Substitutes (Direct Replacement - 48-SSOP Package):
CY74FCT162245TPVC (National Semiconductor) is the preferred direct replacement. It maintains identical electrical specifications (24mA output current, 4.5V-5.5V supply) and package footprint (48-BSSOP). The part is currently in active production status with 1,389 units in stock, ensuring long-term availability and supply chain stability.
74FCT16245ATPVG (IDT) provides an alternative with enhanced output current capability (32mA/64mA) in the same 48-BSSOP package. This part is active and suitable for applications requiring higher drive capability without PCB modification.
74ACT16245DL (Texas Instruments) is electrically equivalent but carries Last Time Buy status, limiting its viability for new designs requiring extended component lifecycle.
Secondary Substitutes (Package Modification Required - 48-TFSOP Package):
74FCT162245CTPAG (IDT) and 74FCT162245CTPAG8 (IDT) maintain the original 24mA output current specification but require PCB layout changes due to the narrower 48-TFSOP package (0.240" vs. 0.295" width). Both parts are in active production.
74FCT16245ATPAG (IDT) and 74FCT16245ATPAG8 (Renesas Electronics) offer enhanced output current (32mA/64mA) in 48-TFSOP packaging. Both are active production parts with substantial inventory availability.
Not Recommended:
74FCT163245CPVG operates at a different supply voltage range (2.7V-3.6V) and is obsolete. This part is not suitable for 5V system applications.
74FCT162245ATPAG (Renesas Electronics) is obsolete and should not be selected for new designs.
Frequently Asked Questions (FAQ)
Q: Can I use 74FCT16245ATPVG as a direct replacement for 74FCT162245CTPVCG4?
A: Yes. Both parts use the 48-BSSOP package with identical pinout and footprint. The 74FCT16245ATPVG provides higher output current (32mA/64mA vs. 24mA/24mA), making it electrically compatible and suitable for applications where additional drive capability is beneficial or neutral.
Q: What is the difference between 48-SSOP and 48-TSSOP packages?
A: 48-SSOP (Shrink Small Outline Package) has a body width of 0.295" (7.50mm), while 48-TSSOP (Thin Shrink Small Outline Package) has a body width of 0.240" (6.10mm). These are not pin-compatible without PCB redesign. Substituting between these packages requires layout modification.
Q: Is CY74FCT162245TPVC a suitable replacement?
A: Yes. The CY74FCT162245TPVC (National Semiconductor) is a parametric equivalent with identical electrical specifications and 48-BSSOP packaging. It is currently in active production with good inventory availability, making it a reliable long-term substitute.
Q: Why is 74FCT163245CPVG not recommended as a substitute?
A: The 74FCT163245CPVG operates at 2.7V-3.6V supply voltage, which is incompatible with the 4.5V-5.5V requirement of the original 74FCT162245CTPVCG4. Additionally, this part is obsolete. It is not suitable for 5V logic systems.
Q: Can I use parts with higher output current ratings?
A: Yes. Parts such as 74FCT16245ATPVG, 74FCT16245ATPAG, and 74FCT16245ATPAG8 with 32mA/64mA output current are electrically compatible. Higher output current capability does not create functional incompatibility; it represents enhanced performance margin for driving heavier loads.
Q: Which substitute offers the best long-term availability?
A: CY74FCT162245TPVC (National Semiconductor) is in active production status with 1,389 units in stock. For 48-TFSOP package alternatives, 74FCT162245CTPAG (IDT) and 74FCT162245CTPAG8 (IDT) are both active with substantial inventory (2,527 and 2,175 units respectively).
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