TRSF3222ECDBRG4 Equivalent & Substitute Parts

Part Overview

The TRSF3222ECDBRG4 is a full-duplex RS232 transceiver manufactured by Texas Instruments, configured with 2 drivers and 2 receivers in a 20-SSOP surface mount package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for new designs or ongoing production requirements. Substitute parts must maintain functional compatibility across RS232 protocol operation, electrical specifications, and mechanical packaging constraints.

Key Parameters

Parameter	TRSF3222ECDBRG4
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS232
Drivers/Receivers	2/2
Duplex	Full
Package / Case	20-SSOP (0.209", 5.30mm Width)
Receiver Hysteresis	300 mV
Data Rate	500 kbps
Voltage - Supply	3V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Protocol Compatibility: All substitutes must support RS232 full-duplex communication with 2 drivers and 2 receivers
Package Compatibility: Primary substitutes maintain 20-SSOP packaging (0.209", 5.30mm Width); alternative package options (20-TSSOP) are listed separately
Electrical Specifications: Supply voltage range (3V ~ 5.5V) and operating temperature range must be compatible with application requirements
Data Rate: Minimum 250 kbps required; higher data rates (500 kbps, 1 Mbps) are acceptable
Receiver Hysteresis: 300 mV or 500 mV acceptable for RS232 operation
Product Status: Active parts are preferred for new designs; obsolete parts are noted for reference only
Compliance: ROHS3 compliance and REACH unaffected status maintained across all substitutes

Substitutes are grouped by manufacturer and packaging configuration to facilitate procurement and design decisions.

Parameter Comparison

Part Number	Manufacturer	Package / Case	Receiver Hysteresis	Data Rate	Operating Temperature	Product Status	Packaging Type
TRSF3222ECDBRG4	Texas Instruments	20-SSOP (0.209", 5.30mm)	300 mV	500 kbps	0°C ~ 70°C	Obsolete	Not specified
TRS3222ECDBR	Texas Instruments	20-SSOP (0.209", 5.30mm)	300 mV	500 kbps	0°C ~ 70°C	Obsolete	Cut Tape (CT) & Digi-Reel
MAX3222ECAP+	Analog Devices Inc./Maxim Integrated	20-SSOP (0.209", 5.30mm)	500 mV	1 Mbps	0°C ~ 70°C	Active	Tube
MAX3222ECAP+T	Analog Devices Inc./Maxim Integrated	20-SSOP (0.209", 5.30mm)	500 mV	1 Mbps	0°C ~ 70°C	Active	Tape & Reel (TR)
ICL3222CVZ	Renesas Electronics Corporation	20-TSSOP (0.173", 4.40mm)	300 mV	250 kbps	0°C ~ 70°C	Active	Tube
ICL3222CVZ-T	Renesas Electronics Corporation	20-TSSOP (0.173", 4.40mm)	300 mV	250 kbps	0°C ~ 70°C	Active	Tape & Reel (TR)
ICL3222ECAZ	Renesas Electronics Corporation	20-SSOP (0.209", 5.30mm)	500 mV	250 kbps	0°C ~ 70°C	Active	Tube
ICL3222ECAZ-T	Renesas Electronics Corporation	20-SSOP (0.209", 5.30mm)	500 mV	250 kbps	0°C ~ 70°C	Active	Tape & Reel (TR)
ICL3222ECVZ	Renesas Electronics Corporation	20-TSSOP (0.173", 4.40mm)	500 mV	250 kbps	0°C ~ 70°C	Active	Tube
ICL3222ECVZ-T	Renesas Electronics Corporation	20-TSSOP (0.173", 4.40mm)	500 mV	250 kbps	0°C ~ 70°C	Active	Tape & Reel (TR)
ICL3222EIAZ	Renesas Electronics Corporation	20-SSOP (0.209", 5.30mm)	500 mV	250 kbps	-40°C ~ 85°C	Active	Tube

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (20-SSOP Package)

The MAX3222ECAP+ and MAX3222ECAP+T from Analog Devices Inc./Maxim Integrated are active products that maintain identical 20-SSOP packaging with the TRSF3222ECDBRG4. These parts support higher data rates (1 Mbps) and are suitable for new designs. Packaging options include Tube (MAX3222ECAP+) and Tape & Reel (MAX3222ECAP+T) for different procurement workflows.

The ICL3222ECAZ and ICL3222ECAZ-T from Renesas Electronics Corporation provide 20-SSOP compatibility with active product status. These parts operate at 250 kbps data rate and are available in Tube and Tape & Reel packaging.

For Extended Temperature Range Applications

The ICL3222EIAZ from Renesas Electronics Corporation extends the operating temperature range to -40°C ~ 85°C while maintaining 20-SSOP packaging and active product status. This part is suitable for industrial or automotive applications requiring wider temperature operation.

For Compact Packaging (20-TSSOP Alternative)

The ICL3222CVZ, ICL3222CVZ-T, ICL3222ECVZ, and ICL3222ECVZ-T from Renesas Electronics Corporation provide 20-TSSOP packaging (0.173", 4.40mm Width) as a space-saving alternative. These parts maintain full RS232 2/2 transceiver functionality with active product status and are available in both Tube and Tape & Reel configurations.

Compliance and Certification

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, consistent with the original TRSF3222ECDBRG4 specifications.

Frequently Asked Questions (FAQ)

Q: Can I use MAX3222ECAP+ as a direct replacement for TRSF3222ECDBRG4?

A: Yes. Both parts share identical 20-SSOP packaging, 2/2 full-duplex RS232 transceiver configuration, and 3V ~ 5.5V supply voltage range. The MAX3222ECAP+ supports higher data rates (1 Mbps vs. 500 kbps) and is an active product, making it suitable for new designs.

Q: What is the difference between ICL3222ECAZ and ICL3222ECVZ?

A: Both are Renesas Electronics Corporation RS232 transceivers with 2/2 configuration and 250 kbps data rate. The primary difference is packaging: ICL3222ECAZ uses 20-SSOP (0.209", 5.30mm Width), while ICL3222ECVZ uses 20-TSSOP (0.173", 4.40mm Width). The TSSOP variant is more compact and suitable for space-constrained designs.

Q: Are Tape & Reel (TR) and Tube packaging functionally equivalent?

A: Yes. Tape & Reel and Tube packaging contain identical components with the same electrical and mechanical specifications. The difference is in delivery format: Tape & Reel is optimized for automated assembly lines, while Tube packaging is suitable for manual assembly or lower-volume applications.

Q: Why is the TRSF3222ECDBRG4 marked as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Texas Instruments. Active equivalent parts from other manufacturers (Analog Devices Inc./Maxim Integrated and Renesas Electronics Corporation) provide identical or superior functionality and are recommended for new designs.

Q: Can I use ICL3222EIAZ in applications requiring 0°C ~ 70°C operation?

A: Yes. The ICL3222EIAZ operates across -40°C ~ 85°C, which encompasses the 0°C ~ 70°C range. This part is suitable for applications with extended temperature requirements and is backward-compatible with standard commercial temperature range designs.

Q: What is the significance of receiver hysteresis values (300 mV vs. 500 mV)?

A: Receiver hysteresis affects noise immunity in RS232 communication. Both 300 mV and 500 mV hysteresis values are acceptable for RS232 protocol compliance. Higher hysteresis (500 mV) provides greater noise immunity in electrically noisy environments, while 300 mV is standard for typical applications.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with environmental and regulatory requirements.

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