HIN238IBZ RS232 Transceiver 4/4 Full Duplex 24-SOIC Equivalent & Substitute Parts

Part Overview

The HIN238IBZ is a full duplex RS232 transceiver manufactured by Renesas Electronics Corporation, configured with 4 drivers and 4 receivers in a 24-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support, redesigns, and production continuity. The HIN238IBZ operates across the industrial temperature range of -40°C to 85°C with a 4.5V to 5.5V supply voltage, supporting RS232 protocol communication at 120 Kbps data rates.

Key Parameters

Parameter	Value
Manufacturer Part Number	HIN238IBZ
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/4
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	120 Kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	24-SOIC (0.295", 7.50mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the HIN238IBZ is determined by strict alignment of the following critical parameters:

Core Compatibility Criteria:

Protocol: RS232 (mandatory match)
Number of Drivers/Receivers: 4/4 (mandatory match)
Duplex: Full (mandatory match)
Package / Case: 24-SOIC (0.295", 7.50mm Width) (mandatory match)
Mounting Type: Surface Mount (mandatory match)
Data Rate: 120 Kbps (mandatory match)

Allowable Parameter Variations:

Receiver Hysteresis: 500 mV (HIN238IBZ) to 650 mV (ADM238 series) — acceptable variation within RS232 specification tolerances
Voltage - Supply: 4.5V ~ 5.5V (HIN238IBZ) to 4.75V ~ 5.25V (ADM238 series) — acceptable overlap for 5V nominal systems
Operating Temperature: -40°C ~ 85°C (HIN238IBZ) to 0°C ~ 70°C (ADM238LJRZ variants) — temperature range selection depends on application requirements
Moisture Sensitivity Level (MSL): 3 (168 Hours) to 1 (Unlimited) — MSL 1 represents improved moisture tolerance
Product Status: Obsolete (HIN238IBZ) to Active (substitute parts) — active status ensures ongoing availability

Substitute parts are grouped by manufacturer and base product number: ADM238 series (Analog Devices Inc.) and MAX208/MAX238 series (Analog Devices Inc./Maxim Integrated).

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Duplex	Receiver Hysteresis	Data Rate	Supply Voltage	Operating Temp	Package	Product Status	MSL
HIN238IBZ	Renesas Electronics	RS232	4/4	Full	500 mV	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Obsolete	3
ADM238LARZ	Analog Devices Inc.	RS232	4/4	Full	650 mV	120 Kbps	4.75V ~ 5.25V	-40°C ~ 85°C	24-SOIC	Active	1
ADM238LARZ-REEL	Analog Devices Inc.	RS232	4/4	Full	650 mV	120 Kbps	4.75V ~ 5.25V	-40°C ~ 85°C	24-SOIC	Active	1
ADM238LJRZ	Analog Devices Inc.	RS232	4/4	Full	650 mV	120 Kbps	4.75V ~ 5.25V	0°C ~ 70°C	24-SOIC	Active	1
ADM238LJRZ-REEL	Analog Devices Inc.	RS232	4/4	Full	650 mV	120 Kbps	4.75V ~ 5.25V	0°C ~ 70°C	24-SOIC	Active	1
MAX208ECWG+	Analog Devices Inc./Maxim Integrated	RS232	4/4	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	24-SOIC	Active	1
MAX208ECWG+T	Analog Devices Inc./Maxim Integrated	RS232	4/4	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	24-SOIC	Active	1
MAX208EEWG+T	Analog Devices Inc./Maxim Integrated	RS232	4/4	Full	500 mV	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Active	1
MAX238CWG+	Analog Devices Inc./Maxim Integrated	RS232	4/4	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	24-SOIC	Active	1
MAX238CWG+T	Analog Devices Inc./Maxim Integrated	RS232	4/4	Full	500 mV	120 Kbps	4.5V ~ 5.5V	0°C ~ 70°C	24-SOIC	Active	1
MAX238EWG+T	Analog Devices Inc./Maxim Integrated	RS232	4/4	Full	500 mV	120 Kbps	4.5V ~ 5.5V	-40°C ~ 85°C	24-SOIC	Active	1

Engineering Selection Recommendations

For Industrial Temperature Range Applications (-40°C ~ 85°C):

Select MAX208EEWG+T or MAX238EWG+T. Both parts maintain the full industrial temperature specification of the HIN238IBZ while offering active product status and improved moisture sensitivity (MSL 1). MAX238EWG+T provides identical receiver hysteresis (500 mV) and supply voltage range (4.5V ~ 5.5V) to the original HIN238IBZ. MAX208EEWG+T offers the same electrical characteristics with MAX208 base product designation.

For Commercial Temperature Range Applications (0°C ~ 70°C):

ADM238LARZ, ADM238LARZ-REEL, MAX208ECWG+, MAX208ECWG+T, MAX238CWG+, or MAX238CWG+T are suitable. These parts are active and available in multiple packaging formats (Tube, Tape & Reel, Cut Tape & Digi-Reel). ADM238 variants feature 650 mV receiver hysteresis and 4.75V ~ 5.25V supply voltage range. MAX208/MAX238 variants maintain 500 mV receiver hysteresis and 4.5V ~ 5.5V supply voltage range, providing closer electrical alignment to the HIN238IBZ.

Packaging Considerations:

Tube packaging is suitable for low-volume applications and manual assembly. Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel packaging are optimized for automated pick-and-place assembly and high-volume production. Selection depends on manufacturing process requirements.

Compliance Status:

All substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the HIN238IBZ.

Frequently Asked Questions (FAQ)

Q: Can ADM238LJRZ substitute for HIN238IBZ in all applications?

A: ADM238LJRZ is suitable only for applications operating within the 0°C ~ 70°C temperature range. The HIN238IBZ specifies -40°C ~ 85°C operation. For full industrial temperature range compatibility, use ADM238LARZ or ADM238LARZ-REEL instead.

Q: What is the difference between 500 mV and 650 mV receiver hysteresis?

A: Receiver hysteresis defines the voltage difference between the rising and falling threshold levels for RS232 input signals. Both 500 mV and 650 mV hysteresis values comply with RS232 specifications. The 650 mV hysteresis in ADM238 variants provides increased noise immunity in electrically noisy environments.

Q: Are MAX208 and MAX238 variants interchangeable?

A: MAX208 and MAX238 are distinct base product numbers with different internal architectures. Both support 4/4 full duplex RS232 transceiver functionality in 24-SOIC packaging. Selection between MAX208 and MAX238 depends on specific application requirements and design validation. They are not automatically interchangeable without circuit-level evaluation.

Q: What does the "+T" suffix indicate in part numbers like MAX238EWG+T?

A: The "+T" suffix indicates Tape & Reel packaging format, optimized for automated assembly processes. Parts without the "+T" suffix (such as MAX238CWG+) are supplied in Tube packaging for manual handling and lower-volume applications.

Q: Is MSL 1 (Unlimited) better than MSL 3 (168 Hours)?

A: MSL 1 indicates the component can be stored indefinitely without moisture absorption concerns. MSL 3 requires reflow processing within 168 hours of package opening. For supply chain flexibility and extended storage capability, MSL 1 parts offer operational advantages.

Q: Can I use MAX208ECWG+ for applications requiring -40°C ~ 85°C operation?

A: No. MAX208ECWG+ specifies 0°C ~ 70°C operating temperature. For -40°C ~ 85°C applications, use MAX208EEWG+T or MAX238EWG+T, which both support the full industrial temperature range.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (ADM238 and MAX208/MAX238 series) are ROHS3 compliant, matching the regulatory compliance of the HIN238IBZ.

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