HIN241IB RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The HIN241IB is a 4/5 full-duplex RS232 transceiver manufactured by Renesas Electronics Corporation in 28-SOIC surface mount packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The HIN241IB operates across a 4.5V to 5.5V supply range with a 120 kbps data rate and 500 mV receiver hysteresis, suitable for legacy serial communication applications requiring full RS232 protocol compliance.

Key Parameters

Parameter	Value
Manufacturer Part Number	HIN241IB
Manufacturer	Renesas Electronics Corporation
Category	Interface
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	4/5
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	28-SOIC (0.295", 7.50mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the HIN241IB is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Protocol: RS232 full-duplex transceiver
Number of Drivers/Receivers: 4/5 configuration
Package: 28-SOIC surface mount form factor
Data Rate: 120 kbps minimum
Voltage Supply Range: 4.5V ~ 5.5V (or compatible subset)
Operating Temperature: -40°C ~ 85°C (or compatible subset)
Receiver Hysteresis: 500 mV (or 650 mV acceptable with voltage range verification)
Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Direct Substitutes (Electrical and Mechanical Equivalence): Parts that match all critical parameters including supply voltage range (4.5V ~ 5.5V) and operating temperature (-40°C ~ 85°C).

Similar Substitutes (Compatible with Parameter Variance): Parts that maintain 4/5 RS232 transceiver functionality in 28-SOIC packaging but with acceptable variations in receiver hysteresis (650 mV), supply voltage range (4.75V ~ 5.25V), or operating temperature (0°C ~ 70°C). These require verification of system tolerance to parameter differences.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Receiver Hysteresis	Data Rate	Supply Voltage	Operating Temperature	Package	Product Status	RoHS Status	Packaging Type
HIN241IB	Renesas Electronics	RS232	4/5	500 mV	120 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Obsolete	Non-compliant	Bulk
MAX241EWI+T	Analog Devices Inc./Maxim Integrated	RS232	4/5	500 mV	120 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant	Tape & Reel
ADM241LARZ	Analog Devices Inc.	RS232	4/5	650 mV	120 kbps	4.75V ~ 5.25V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant	Tube
ADM241LARZ-REEL	Analog Devices Inc.	RS232	4/5	650 mV	120 kbps	4.75V ~ 5.25V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant	Tape & Reel
ADM241LJRZ	Analog Devices Inc.	RS232	4/5	650 mV	120 kbps	4.75V ~ 5.25V	0°C ~ 70°C	28-SOIC	Active	ROHS3 Compliant	Tube
ADM241LJRZ-REEL	Analog Devices Inc.	RS232	4/5	650 mV	120 kbps	4.75V ~ 5.25V	0°C ~ 70°C	28-SOIC	Active	ROHS3 Compliant	Tape & Reel
MAX211CDW	Texas Instruments	RS232	4/5	500 mV	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Last Time Buy	ROHS3 Compliant	Tube
MAX211CDWR	Texas Instruments	RS232	4/5	500 mV	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Active	ROHS3 Compliant	Tape & Reel
MAX211ECWI+	Analog Devices Inc./Maxim Integrated	RS232	4/5	500 mV	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Active	ROHS3 Compliant	Tube
MAX211ECWI+T	Analog Devices Inc./Maxim Integrated	RS232	4/5	500 mV	120 kbps	4.5V ~ 5.5V	0°C ~ 70°C	28-SOIC	Active	ROHS3 Compliant	Tape & Reel
MAX211EEWI+T	Analog Devices Inc./Maxim Integrated	RS232	4/5	500 mV	120 kbps	4.5V ~ 5.5V	-40°C ~ 85°C	28-SOIC	Active	ROHS3 Compliant	Tape & Reel

Engineering Selection Recommendations

For Direct Replacement (Full Parameter Match):

MAX241EWI+T is the primary direct substitute for HIN241IB. Both parts maintain identical electrical specifications: 4.5V ~ 5.5V supply voltage, -40°C ~ 85°C operating temperature, 500 mV receiver hysteresis, and 120 kbps data rate in 28-SOIC packaging. MAX241EWI+T is manufactured by Analog Devices Inc./Maxim Integrated with Active product status and ROHS3 compliance, addressing the obsolescence of the HIN241IB while meeting modern regulatory requirements.

MAX211EEWI+T provides an alternative direct substitute with identical electrical parameters and Active product status. This part is available in Tape & Reel packaging, suitable for high-volume production environments.

For Systems with Relaxed Temperature Requirements (0°C ~ 70°C):

MAX211CDWR, MAX211ECWI+T, and MAX211ECWI+ are suitable substitutes when operating temperature requirements do not extend to -40°C. These parts maintain 4.5V ~ 5.5V supply voltage and 500 mV receiver hysteresis. MAX211CDWR and MAX211ECWI+T are available in Tape & Reel packaging for production use.

For Systems with Relaxed Supply Voltage Requirements (4.75V ~ 5.25V):

ADM241LARZ and ADM241LARZ-REEL maintain -40°C ~ 85°C operating temperature but operate within a narrower supply voltage range (4.75V ~ 5.25V) and feature 650 mV receiver hysteresis. These parts are suitable only when system power supply tolerance is verified to remain within 4.75V ~ 5.25V.

ADM241LJRZ and ADM241LJRZ-REEL are restricted to 0°C ~ 70°C operating temperature with 4.75V ~ 5.25V supply voltage and 650 mV receiver hysteresis. These parts are applicable only to systems with both relaxed temperature and voltage requirements.

Compliance Consideration:

All substitute parts listed carry ROHS3 compliance status, addressing regulatory requirements that the obsolete HIN241IB does not meet. Selection should prioritize parts with Active product status to ensure long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can MAX241EWI+T directly replace HIN241IB without circuit modification?

A: Yes. MAX241EWI+T matches all electrical and mechanical parameters of HIN241IB: 4/5 RS232 transceiver, 4.5V ~ 5.5V supply, -40°C ~ 85°C operating temperature, 500 mV receiver hysteresis, 120 kbps data rate, and 28-SOIC packaging. Pin-to-pin compatibility is maintained.

Q: What is the difference between ADM241LARZ and ADM241LARZ-REEL?

A: Both parts are electrically identical. The difference is packaging format: ADM241LARZ is supplied in Tube packaging for manual handling and lower-volume applications, while ADM241LARZ-REEL is supplied in Tape & Reel format for automated assembly and production environments.

Q: Can I use MAX211ECWI+T in a system requiring -40°C ~ 85°C operation?

A: No. MAX211ECWI+T operates only to 0°C ~ 70°C. For full -40°C ~ 85°C temperature range, use MAX241EWI+T or MAX211EEWI+T.

Q: What does 4/5 Drivers/Receivers mean?

A: This indicates the transceiver contains 4 drivers and 5 receivers. All listed substitute parts maintain this configuration, ensuring functional equivalence in RS232 serial communication circuits.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed carry ROHS3 compliance status. The original HIN241IB is RoHS non-compliant. Substitution addresses both obsolescence and regulatory compliance requirements.

Q: Can I use ADM241LJRZ if my system operates at 0°C ~ 70°C?

A: Yes, if your system also maintains supply voltage within 4.75V ~ 5.25V. ADM241LJRZ is suitable for this temperature range but requires verification that the narrower voltage specification does not conflict with your power supply design.

Q: What is receiver hysteresis and why does it matter?

A: Receiver hysteresis (500 mV vs. 650 mV) defines the voltage difference between logic high and low thresholds. Parts with 500 mV hysteresis (HIN241IB, MAX241EWI+T, MAX211 series) provide tighter noise immunity. Parts with 650 mV hysteresis (ADM241 series) require greater signal swing but may be more tolerant of noisy environments. Selection depends on signal integrity requirements of your application.

Q: Why is MAX211CDW listed as "Last Time Buy"?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for this part. While currently available, supply is limited and will eventually cease. For new designs or long-term production, select parts with Active status such as MAX211CDWR or MAX241EWI+T.

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