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DS2502P EPROM 1-Wire Memory IC - Equivalent & Substitute Parts
Part Overview
The DS2502P is a 1Kbit EPROM non-volatile memory IC manufactured by Analog Devices Inc./Maxim Integrated, packaged in a 6-TSOC surface mount configuration. This component implements 1-Wire® protocol communication with 128 x 8 memory organization. The DS2502P is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Memory Type | Non-Volatile EPROM |
| Memory Size | 1Kbit |
| Memory Organization | 128 x 8 |
| Memory Interface | 1-Wire® |
| Memory Format | EPROM - OTP |
| Supply Voltage | 2.8V ~ 6V |
| Operating Temperature Range | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 6-SMD, J-Lead |
| Supplier Device Package | 6-TSOC |
Substitute Part Grouping Explanation
Substitution eligibility for the DS2502P is determined by strict equivalence across the following critical parameters:
- Memory Type: Non-Volatile EPROM
- Memory Size: 1Kbit capacity
- Memory Organization: 128 x 8 configuration
- Memory Interface: 1-Wire® protocol compatibility
- Memory Format: EPROM - OTP technology
- Supply Voltage: 2.8V ~ 6V operating range
- Operating Temperature: -40°C ~ 85°C
- Package / Case: 6-SMD, J-Lead form factor
- Supplier Device Package: 6-TSOC
The DS2502P+ qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The primary distinction is product status and compliance certification.
Parameter Comparison
| Parameter | DS2502P (Main Part) | DS2502P+ (Substitute) |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Memory Type | Non-Volatile EPROM | Non-Volatile EPROM |
| Memory Size | 1Kbit | 1Kbit |
| Memory Organization | 128 x 8 | 128 x 8 |
| Memory Interface | 1-Wire® | 1-Wire® |
| Memory Format | EPROM - OTP | EPROM - OTP |
| Supply Voltage | 2.8V ~ 6V | 2.8V ~ 6V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 6-SMD, J-Lead | 6-SMD, J-Lead |
| Supplier Device Package | 6-TSOC | 6-TSOC |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Packaging | Not specified | Tube |
Engineering Selection Recommendations
The DS2502P+ is a direct electrical and mechanical equivalent to the DS2502P. Selection between these parts should be based on the following criteria:
DS2502P+ is the preferred choice for new designs and ongoing production due to:
- Active product status with continued manufacturer support
- ROHS3 compliance certification
- Identical electrical specifications and 1-Wire® protocol implementation
- Same 6-TSOC package footprint and pinout
DS2502P remains applicable only for legacy system maintenance where existing inventory or specific non-compliance requirements apply.
Both parts share identical memory capacity, interface protocol, voltage specifications, and temperature operating range, ensuring functional interchangeability in circuit implementations.
Frequently Asked Questions (FAQ)
Q: Can DS2502P+ be used as a direct replacement for DS2502P in existing designs?
A: Yes. The DS2502P+ provides complete electrical and mechanical equivalence. All memory specifications, 1-Wire® interface characteristics, supply voltage range (2.8V ~ 6V), and operating temperature range (-40°C ~ 85°C) are identical. The 6-TSOC package footprint and pinout are unchanged.
Q: What is the primary difference between DS2502P and DS2502P+?
A: The DS2502P is obsolete, while DS2502P+ maintains active product status. Additionally, DS2502P+ is ROHS3 compliant, whereas DS2502P is RoHS non-compliant. Electrical and mechanical specifications are identical.
Q: Are there any package or pinout differences between these parts?
A: No. Both parts use the 6-SMD, J-Lead package configuration with 6-TSOC supplier device package designation. Pinout and footprint are identical.
Q: What memory capacity does the DS2502P provide?
A: The DS2502P provides 1Kbit of non-volatile EPROM memory organized as 128 x 8 bits, accessed via 1-Wire® serial protocol.
Q: What supply voltage range is required for DS2502P operation?
A: The DS2502P operates across a 2.8V to 6V supply voltage range, suitable for both 3.3V and 5V logic systems.
Q: Is the DS2502P+ available in different packaging options?
A: The DS2502P+ is supplied in Tube packaging. The DS2502P packaging specification was not provided in the component data.
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