SP202ECP-L RS232 Transceiver: Equivalent & Substitute Parts

Part Overview

The SP202ECP-L is a 2/2 full-duplex RS232 transceiver manufactured by MaxLinear, Inc., housed in a 16-pin DIP package for through-hole mounting. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing system support. The part operates within a 4.5V to 5.5V supply range with a maximum data rate of 240 kbps and receiver hysteresis of 500 mV, serving as a standard interface solution for RS232 serial communication applications.

Key Parameters

Parameter	SP202ECP-L Value
Manufacturer	MaxLinear, Inc.
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Receiver Hysteresis	500 mV
Data Rate	240 kbps
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Through Hole
Package / Case	16-DIP (0.300", 7.62mm)
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SP202ECP-L is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Protocol: RS232
Number of Drivers/Receivers: 2/2
Duplex: Full
Voltage Supply Range: 4.5V ~ 5.5V (minimum requirement)
Mounting Type: Through Hole
Package: 16-DIP (0.300", 7.62mm)

Allowable Variation Parameters:

Receiver Hysteresis: 400 mV to 650 mV (within acceptable RS232 specification tolerances)
Data Rate: 120 kbps minimum (SP202ECP-L operates at 240 kbps; substitutes must support at least this rate or higher)
Operating Temperature: Extended ranges (-40°C ~ 85°C) are acceptable for applications requiring broader temperature support

Substitute parts are grouped by manufacturer and product status. All listed substitutes maintain identical pin configuration, electrical protocol compliance, and through-hole DIP packaging, ensuring direct functional replacement without circuit redesign.

Parameter Comparison

Part Number	Manufacturer	Drivers/Receivers	Data Rate	Receiver Hysteresis	Supply Voltage	Operating Temp	Package	Product Status	RoHS Status
SP202ECP-L	MaxLinear, Inc.	2/2	240 kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Obsolete	Not specified
SP202ECN-L	MaxLinear, Inc.	2/2	240 kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-SOIC	Active	ROHS3 Compliant
ADM202EANZ	Analog Devices Inc.	2/2	230 kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
ADM202JNZ	Analog Devices Inc.	2/2	Not specified	400 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
ADM232AANZ	Analog Devices Inc.	2/2	200 kbps	400 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
ADM232LANZ	Analog Devices Inc.	2/2	120 kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
ADM232LJNZ	Analog Devices Inc.	2/2	120 kbps	650 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
ADM3202ANZ	Analog Devices Inc.	2/2	460 kbps	400 mV	3V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
LT1081CN#PBF	Analog Devices Inc.	2/2	250 kbps	400 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
LT1081IN#PBF	Analog Devices Inc.	2/2	250 kbps	400 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
LT1181ACN#PBF	Analog Devices Inc.	2/2	250 kbps	400 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Through-Hole DIP Replacement (Pin-Compatible):

For applications requiring identical form factor and through-hole mounting, the following active parts provide direct substitution:

ADM202EANZ: Active status, ROHS3 compliant, extended temperature range (-40°C ~ 85°C), 230 kbps data rate, 650 mV hysteresis. Suitable for industrial and extended-temperature applications.
ADM202JNZ: Active status, ROHS3 compliant, standard temperature range (0°C ~ 70°C), 400 mV hysteresis. Suitable for commercial-grade applications matching original operating temperature.
ADM232AANZ: Active status, ROHS3 compliant, extended temperature range, 200 kbps data rate. Suitable for applications requiring broader temperature support.
ADM3202ANZ: Active status, ROHS3 compliant, extended temperature range, 460 kbps data rate, lower supply voltage floor (3V). Suitable for high-speed applications and low-voltage systems.
LT1081CN#PBF and LT1081IN#PBF: Active status, ROHS3 compliant, 250 kbps data rate. LT1081IN#PBF offers extended temperature range.
LT1181ACN#PBF: Active status, ROHS3 compliant, 250 kbps data rate, standard temperature range.

Surface-Mount Alternative (Package Change):

SP202ECN-L: Active status, ROHS3 compliant, identical electrical specifications to the original part (240 kbps, 500 mV hysteresis). Requires PCB redesign for 16-SOIC surface-mount package.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting modern environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I use SP202ECN-L as a direct replacement for SP202ECP-L?

A: SP202ECN-L is electrically identical but uses a 16-SOIC surface-mount package instead of the 16-DIP through-hole package. Direct board-level substitution is not possible without PCB redesign. However, it is the recommended active alternative from MaxLinear, Inc., with identical electrical performance.

Q: Which substitute part most closely matches the original SP202ECP-L specifications?

A: ADM202EANZ provides the closest match in electrical performance (230 kbps vs. 240 kbps, 650 mV hysteresis vs. 500 mV) while maintaining the 16-DIP through-hole package. It is manufactured by Analog Devices Inc., is active, and ROHS3 compliant. The 10 kbps difference in data rate is within acceptable RS232 transceiver tolerances.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the difference between ADM232LANZ and ADM232LJNZ?

A: Both parts are identical except for operating temperature range. ADM232LANZ operates from -40°C to 85°C (industrial grade), while ADM232LJNZ operates from 0°C to 70°C (commercial grade). Both support 120 kbps data rate and 650 mV hysteresis.

Q: Can I use ADM3202ANZ in a 4.5V ~ 5.5V supply system?

A: Yes. ADM3202ANZ supports a supply voltage range of 3V ~ 5.5V, which encompasses the original 4.5V ~ 5.5V range. It also offers higher data rate performance (460 kbps) and extended temperature range.

Q: What is the significance of receiver hysteresis variation among substitutes?

A: Receiver hysteresis (400 mV to 650 mV across substitutes) determines the input threshold differential for RS232 signal detection. All values listed fall within RS232 specification tolerances and are functionally equivalent for standard serial communication applications. Selection should be based on specific system noise immunity requirements.

Q: Are LT1081 and LT1181 parts interchangeable?

A: LT1081CN#PBF and LT1181ACN#PBF are both 250 kbps transceivers with identical electrical specifications. The primary difference is manufacturer designation. Both are suitable for direct substitution in applications requiring 250 kbps performance.

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