MAX1489ECSD RS232 Receiver Interface IC Equivalent & Substitute Parts

Part Overview

The MAX1489ECSD is a 0/4 RS232 receiver interface integrated circuit manufactured by Analog Devices Inc./Maxim Integrated in a 14-SOIC surface mount package. This component is classified as obsolete, indicating that direct procurement from original manufacturing channels may be limited. The identification of equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring RS232 receiver functionality with the specified electrical and mechanical characteristics.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX1489ECSD
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Interface
Type	Receiver
Protocol	RS232
Number of Drivers/Receivers	0/4
Receiver Hysteresis	1.11 V
Data Rate	120 Kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
Supplier Device Package	14-SOIC
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX1489ECSD is determined by strict alignment of the following critical parameters:

Electrical Compatibility Parameters:

Protocol: RS232
Number of Drivers/Receivers: 0/4
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Operating Temperature Range: 0°C ~ 70°C
Moisture Sensitivity Level: 1 (Unlimited)

Mechanical Compatibility Parameters:

Supplier Device Package: 14-SOIC
Physical dimensions: 0.154" width, 3.90mm width

Substitute parts must maintain identical or compatible electrical specifications within the RS232 receiver classification and must be housed in the same 14-SOIC package format to ensure direct replacement capability without circuit board redesign or layout modifications.

Parameter Comparison

Parameter	MAX1489ECSD	MAX1489ECSD+	DS14C89AM/NOPB	DS14C89AMX/NOPB
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Texas Instruments	Texas Instruments
Type	Receiver	Receiver	Receiver	Receiver
Protocol	RS232	RS232	RS232	RS232
Number of Drivers/Receivers	0/4	0/4	0/4	0/4
Receiver Hysteresis	1.11 V	1.11 V	1 V	1 V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)
Supplier Device Package	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Product Status	Obsolete	Active	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Not specified	Tube	Tube	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Substitute: MAX1489ECSD+

The MAX1489ECSD+ is the direct functional equivalent manufactured by Analog Devices Inc./Maxim Integrated. This part maintains identical electrical specifications including receiver hysteresis of 1.11 V and data rate of 120 Kbps. The MAX1489ECSD+ holds Active product status, ensuring ongoing availability and supply chain support. This part is ROHS3 compliant, addressing regulatory requirements that may apply to new designs or procurement cycles. The packaging format is Tube, suitable for standard component handling and assembly processes.

Secondary Substitutes: DS14C89AMX/NOPB and DS14C89AM/NOPB

The DS14C89AMX/NOPB manufactured by Texas Instruments is an Active product available in Tape & Reel packaging, providing the highest availability for high-volume production environments. The DS14C89AM/NOPB is available in Tube packaging but carries Obsolete product status. Both Texas Instruments parts maintain the 14-SOIC package format and RS232 receiver protocol. The receiver hysteresis specification differs at 1 V compared to the MAX1489ECSD at 1.11 V. Both parts support 5V and 12V supply voltages, providing broader voltage compatibility than the MAX1489ECSD specification of 4.5V ~ 5.5V. Both Texas Instruments alternatives are ROHS3 compliant.

Compliance Considerations:

Selection between substitute parts should account for product status and regulatory compliance requirements. Active status parts (MAX1489ECSD+ and DS14C89AMX/NOPB) provide superior long-term supply assurance. ROHS3 compliance is present in all substitute options, supporting modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the MAX1489ECSD+ be used as a direct replacement for the MAX1489ECSD?

A: Yes. The MAX1489ECSD+ maintains identical electrical specifications including receiver hysteresis of 1.11 V, data rate of 120 Kbps, and supply voltage range of 4.5V ~ 5.5V. Both parts are housed in the 14-SOIC package. The primary difference is product status; MAX1489ECSD+ is Active while MAX1489ECSD is Obsolete. Packaging format differs (Tube versus unspecified), but this does not affect functional compatibility.

Q: What are the key differences between the Analog Devices MAX1489 series and the Texas Instruments DS14C89 series?

A: Both series provide RS232 receiver functionality in the 14-SOIC package with 0/4 driver/receiver configuration and identical operating temperature range of 0°C ~ 70°C. The MAX1489 series specifies receiver hysteresis of 1.11 V and data rate of 120 Kbps with supply voltage of 4.5V ~ 5.5V. The DS14C89 series specifies receiver hysteresis of 1 V with supply voltage options of 5V and 12V. Data rate is not specified for the DS14C89 series in the provided documentation.

Q: Are there packaging considerations when selecting between substitute parts?

A: Yes. The MAX1489ECSD+ is supplied in Tube packaging. The DS14C89AM/NOPB is supplied in Tube packaging. The DS14C89AMX/NOPB is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated assembly processes and high-volume production. Tube packaging is suitable for standard component handling and lower-volume applications. Selection should align with assembly process requirements and production volume.

Q: Does the receiver hysteresis difference between MAX1489 and DS14C89 parts affect substitution?

A: The receiver hysteresis specification differs: MAX1489 series at 1.11 V and DS14C89 series at 1 V. Both values fall within standard RS232 receiver hysteresis ranges. The functional impact depends on specific application signal characteristics and noise margins. The difference is documented in the component specifications and should be evaluated within the context of the target application's signal integrity requirements.

Q: What is the significance of product status (Active versus Obsolete) in component selection?

A: Product status indicates manufacturer support and supply availability. Active status parts (MAX1489ECSD+ and DS14C89AMX/NOPB) are currently manufactured and supported by their respective manufacturers, ensuring ongoing availability and supply chain reliability. Obsolete status parts (MAX1489ECSD and DS14C89AM/NOPB) are no longer in active production, which may result in limited inventory and reduced long-term availability. For new designs or long-term production requirements, Active status parts are preferred.

Q: Are all substitute parts RoHS compliant?

A: The MAX1489ECSD is RoHS non-compliant. All substitute parts listed (MAX1489ECSD+, DS14C89AM/NOPB, and DS14C89AMX/NOPB) are ROHS3 compliant. This compliance status should be considered when selecting parts for applications subject to RoHS regulations or customer requirements.

Q: Can the DS14C89 series operate at the same supply voltage as the MAX1489ECSD?

A: The MAX1489ECSD operates at 4.5V ~ 5.5V. The DS14C89 series supports 5V and 12V supply voltages. The 5V specification of the DS14C89 series overlaps with the upper portion of the MAX1489ECSD supply range. Applications requiring operation at 4.5V or below should use the MAX1489 series. Applications requiring 12V operation must use the DS14C89 series.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message