SP232ACP-L RS232 Transceiver Equivalent & Substitute Parts

Part Overview

The SP232ACP-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 interface IC operates within the 4.5V to 5.5V supply range and supports data rates up to 240 kbps with a 500 mV receiver hysteresis specification. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support, maintenance, and new design implementations where through-hole or surface-mount alternatives are required.

Key Parameters

Parameter	SP232ACP-L
Manufacturer	MaxLinear, Inc.
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)
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SP232ACP-L is determined by the following critical parameters:

Protocol Compatibility: All substitutes must implement RS232 full-duplex transceiver functionality with 2/2 driver/receiver configuration
Supply Voltage Range: Substitutes must operate within 4.5V to 5.5V, or support a wider range that encompasses this specification
Package and Mounting: Through-hole 16-DIP packages maintain direct pin compatibility; surface-mount alternatives (16-SOIC) require PCB redesign
Data Rate: Substitutes must support minimum 240 kbps operation; higher data rates are acceptable
Receiver Hysteresis: Acceptable range is 400 mV to 650 mV; variations within this range do not affect RS232 compliance
Operating Temperature: Substitutes rated for 0°C to 70°C or extended ranges (-40°C to 85°C) are acceptable
Product Status and Compliance: Active parts with ROHS3 compliance and REACH unaffected status are preferred for new designs

Parameter Comparison

Part Number	Manufacturer	Package	Mounting	Data Rate	Receiver Hysteresis	Supply Voltage	Operating Temp	Product Status	RoHS Status
SP232ACP-L	MaxLinear, Inc.	16-DIP	Through Hole	240 kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	Obsolete	Not specified
SP232ACN-L/TR	MaxLinear, Inc.	16-SOIC	Surface Mount	240 kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	Active	ROHS3 Compliant
ADM202EANZ	Analog Devices Inc.	16-DIP	Through Hole	230 kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	Active	ROHS3 Compliant
ADM202JNZ	Analog Devices Inc.	16-DIP	Through Hole	Not specified	400 mV	4.5V ~ 5.5V	0°C ~ 70°C	Active	ROHS3 Compliant
ADM232AANZ	Analog Devices Inc.	16-DIP	Through Hole	200 kbps	400 mV	4.5V ~ 5.5V	-40°C ~ 85°C	Active	ROHS3 Compliant
ADM232LANZ	Analog Devices Inc.	16-DIP	Through Hole	120 kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	Active	ROHS3 Compliant
ADM232LJNZ	Analog Devices Inc.	16-DIP	Through Hole	120 kbps	650 mV	4.5V ~ 5.5V	0°C ~ 70°C	Active	ROHS3 Compliant
ADM3202ANZ	Analog Devices Inc.	16-DIP	Through Hole	460 kbps	400 mV	3V ~ 5.5V	-40°C ~ 85°C	Active	ROHS3 Compliant
HIN232CPZ	Renesas Electronics Corporation	16-DIP	Through Hole	120 kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	Active	ROHS3 Compliant
HIN232IPZ	Renesas Electronics Corporation	16-DIP	Through Hole	120 kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	Active	ROHS3 Compliant
LT1081CN#PBF	Analog Devices Inc.	16-DIP	Through Hole	250 kbps	400 mV	4.5V ~ 5.5V	0°C ~ 70°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Through-Hole Replacements (Pin-Compatible)

For applications requiring direct replacement in existing through-hole PCB layouts, the following parts maintain identical 16-DIP package geometry and pinout:

ADM202EANZ: Meets or exceeds all electrical specifications with extended operating temperature range (-40°C to 85°C). Data rate of 230 kbps satisfies the 240 kbps requirement. ROHS3 compliant and active product status.
ADM3202ANZ: Highest data rate capability at 460 kbps with extended supply voltage range (3V to 5.5V). Suitable for applications requiring higher speed operation. ROHS3 compliant and active product status.
LT1081CN#PBF: Data rate of 250 kbps exceeds the 240 kbps specification. ROHS3 compliant and active product status.
HIN232CPZ and HIN232IPZ: Renesas alternatives with identical receiver hysteresis (500 mV) matching the original part. HIN232IPZ offers extended temperature range. Both ROHS3 compliant and active.

Surface-Mount Alternative

SP232ACN-L/TR: MaxLinear equivalent in 16-SOIC surface-mount package. Identical electrical specifications and data rate. Requires PCB redesign. ROHS3 compliant and active product status.

Lower Data Rate Alternatives

ADM232LANZ and ADM232LJNZ: Operate at 120 kbps, suitable only for applications not requiring the full 240 kbps capability. Both ROHS3 compliant and active.

All recommended substitutes carry ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements for new designs and production environments.

Frequently Asked Questions (FAQ)

Q: Can I use ADM232LANZ as a direct replacement for SP232ACP-L?

A: ADM232LANZ is electrically compatible in terms of supply voltage, package, and mounting type. However, its maximum data rate is 120 kbps, which is below the SP232ACP-L specification of 240 kbps. Use this part only if your application does not require data rates above 120 kbps.

Q: What is the difference between ADM202EANZ and ADM202JNZ?

A: Both are 16-DIP through-hole packages with identical supply voltage. ADM202EANZ supports 230 kbps data rate and operates from -40°C to 85°C with 650 mV receiver hysteresis. ADM202JNZ has 400 mV receiver hysteresis, unspecified data rate, and operates from 0°C to 70°C. ADM202EANZ is the more capable option for demanding applications.

Q: Is SP232ACN-L/TR a pin-for-pin replacement?

A: No. SP232ACN-L/TR uses a 16-SOIC surface-mount package, while SP232ACP-L uses a 16-DIP through-hole package. Although electrically equivalent, PCB redesign is required for mounting. This part is suitable for new designs or PCB revisions.

Q: Why does ADM3202ANZ have a lower supply voltage minimum of 3V instead of 4.5V?

A: ADM3202ANZ is designed with a wider supply voltage range (3V to 5.5V) compared to the original part. This extended range does not affect compatibility when operating within the 4.5V to 5.5V window. The part is suitable for applications requiring lower voltage operation.

Q: Which substitute offers the highest data rate?

A: ADM3202ANZ supports 460 kbps, the highest among all listed substitutes. This part is suitable for applications requiring data rates significantly above the original 240 kbps specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts listed carry ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory standards for manufacturing and distribution.

Q: Can I interchange HIN232CPZ and HIN232IPZ?

A: Both are Renesas 16-DIP through-hole packages with identical receiver hysteresis (500 mV) and data rate (120 kbps). The primary difference is operating temperature range: HIN232CPZ operates 0°C to 70°C, while HIN232IPZ operates -40°C to 85°C. Select based on your application's temperature requirements.

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