HIN232IP RS232 Transceiver 2/2 Full Duplex Interface IC

Part Overview

The HIN232IP is a 2/2 full duplex RS232 transceiver manufactured by Renesas Electronics Corporation, housed in a 16-DIP package. This interface IC operates at 120 Kbps data rate with 500 mV receiver hysteresis and supports supply voltages from 4.5V to 5.5V across an operating temperature range of -40°C to 85°C. The HIN232IP is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	HIN232IP
Manufacturer	Renesas Electronics Corporation
Type	Transceiver
Protocol	RS232
Number of Drivers/Receivers	2/2
Duplex	Full
Data Rate	120 Kbps
Receiver Hysteresis	500 mV
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Through Hole
Package / Case	16-DIP (0.300", 7.62mm)
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the HIN232IP is determined by strict equivalence across the following critical parameters:

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

Parts are grouped into two categories:

Parametric Equivalent: HIN232IPZ maintains identical electrical specifications and package configuration as the HIN232IP, with the primary distinction being active product status and improved RoHS3 compliance.

Similar Parts: ADM232 series (Analog Devices), LT1081 series (Analog Devices), LT1781 series (Analog Devices), LTC1383 series (Analog Devices), and MAX232 series (Analog Devices/Maxim Integrated) meet the core substitution criteria of 2/2 full duplex RS232 transceiver functionality in 16-DIP packaging. These parts may exhibit variations in receiver hysteresis, data rate, operating temperature range, and supply voltage specifications within acceptable tolerances for RS232 interface applications.

Parameter Comparison

Part Number	Manufacturer	Protocol	Drivers/Receivers	Data Rate	Receiver Hysteresis	Supply Voltage	Operating Temp	Package	Product Status	RoHS Status
HIN232IP	Renesas	RS232	2/2	120 Kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Obsolete	RoHS non-compliant
HIN232IPZ	Renesas	RS232	2/2	120 Kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
ADM232AANZ	Analog Devices	RS232	2/2	200 Kbps	400 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
ADM232LANZ	Analog Devices	RS232	2/2	120 Kbps	650 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
ADM232LJNZ	Analog Devices	RS232	2/2	120 Kbps	650 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
LT1081CN#PBF	Analog Devices	RS232	2/2	250 KBd	400 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
LT1081IN#PBF	Analog Devices	RS232	2/2	250 KBd	400 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
LT1781IN#PBF	Analog Devices	RS232	2/2	250 KBd	400 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
LTC1383IN#PBF	Analog Devices	RS232	2/2	120 KBd	400 mV	4.5V ~ 5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant
MAX232ACPE+	Analog Devices/Maxim	RS232	2/2	200 Kbps	500 mV	4.5V ~ 5.5V	0°C ~ 70°C	16-DIP	Active	ROHS3 Compliant
MAX232AEPE+	Analog Devices/Maxim	RS232	2/2	200 Kbps	500 mV	4.5V ~ 5.5V	-40°C ~ 85°C	16-DIP	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: HIN232IPZ is the direct parametric equivalent to HIN232IP. This part maintains identical electrical specifications and 16-DIP package configuration while offering active product status and ROHS3 compliance, eliminating obsolescence risk.

Secondary Recommendations for Extended Temperature Range (-40°C to 85°C):

ADM232AANZ: Supports higher data rate (200 Kbps) with lower receiver hysteresis (400 mV), suitable for applications requiring increased bandwidth.
ADM232LANZ: Maintains 120 Kbps data rate with elevated receiver hysteresis (650 mV), appropriate for noise-sensitive environments.
LT1081IN#PBF: Offers 250 KBd data rate capability with 400 mV hysteresis, supporting high-speed RS232 communication.
LT1781IN#PBF: Provides 250 KBd data rate with 400 mV hysteresis across full industrial temperature range.
LTC1383IN#PBF: Maintains 120 KBd data rate with 400 mV hysteresis; note reduced supply voltage upper limit (4.5V ~ 5V).
MAX232AEPE+: Supports 200 Kbps data rate with 500 mV hysteresis matching original specifications.

Restricted Temperature Range (0°C to 70°C):

ADM232LJNZ: 120 Kbps operation with 650 mV hysteresis.
LT1081CN#PBF: 250 KBd operation with 400 mV hysteresis.
MAX232ACPE+: 200 Kbps operation with 500 mV hysteresis.

All substitute parts maintain ROHS3 compliance and active product status, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can HIN232IPZ be used as a direct replacement for HIN232IP?

A: Yes. HIN232IPZ is a parametric equivalent with identical electrical specifications, data rate, receiver hysteresis, supply voltage range, operating temperature range, and 16-DIP package configuration. The primary differences are active product status and ROHS3 compliance.

Q: What is the difference between receiver hysteresis values across substitute parts?

A: Receiver hysteresis determines the voltage differential required for input signal transitions. The HIN232IP specifies 500 mV hysteresis. Substitute parts with lower hysteresis (400 mV) provide faster response to marginal input signals, while higher hysteresis (650 mV) offers improved noise immunity in electrically noisy environments. Selection depends on signal integrity requirements of the specific application.

Q: Are all substitute parts pin-compatible with HIN232IP?

A: All listed substitute parts use 16-DIP (0.300", 7.62mm) through-hole packaging, ensuring mechanical compatibility. However, electrical compatibility must be verified through application-specific testing, particularly regarding data rate, hysteresis, and supply voltage specifications.

Q: Which substitute part should be selected for applications requiring extended temperature operation?

A: For applications requiring -40°C to 85°C operation, select from: HIN232IPZ, ADM232AANZ, ADM232LANZ, LT1081IN#PBF, LT1781IN#PBF, LTC1383IN#PBF, or MAX232AEPE+. Parts restricted to 0°C to 70°C operation are ADM232LJNZ, LT1081CN#PBF, and MAX232ACPE+.

Q: What is the significance of ROHS3 compliance for substitute selection?

A: ROHS3 compliance indicates conformance to current environmental and hazardous substance restrictions. The original HIN232IP is RoHS non-compliant. All active substitute parts listed are ROHS3 compliant, supporting regulatory requirements for new designs and long-term system support.

Q: Can higher data rate parts (200 Kbps or 250 KBd) be used in applications designed for 120 Kbps operation?

A: Yes. Higher data rate capability is backward compatible with lower-speed applications. Parts such as ADM232AANZ (200 Kbps), LT1081IN#PBF (250 KBd), and MAX232AEPE+ (200 Kbps) operate correctly at 120 Kbps and below, providing design flexibility and potential performance headroom.

Q: What supply voltage considerations apply when selecting substitute parts?

A: The HIN232IP operates across 4.5V to 5.5V. Most substitute parts maintain this range. LTC1383IN#PBF has a reduced upper limit of 5V. Verify supply voltage specifications match system power distribution requirements before implementation.

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