AS4C1M16S-6TCN SDRAM Memory IC Equivalent & Substitute Parts

Part Overview

The AS4C1M16S-6TCN is a 16Mbit SDRAM memory integrated circuit manufactured by Alliance Memory, Inc., configured as 1M x 16 with parallel interface operation at 166 MHz. This component is classified as Active product status and is ROHS3 compliant. The part is packaged in 50-TSOP II surface mount configuration with 5.4 ns access time and operates across the 3V to 3.6V supply voltage range at temperatures from 0°C to 70°C.

Equivalent and substitute parts are identified based on matching core electrical and mechanical specifications: identical memory capacity (16Mbit), organization (1M x 16), interface type (Parallel), clock frequency (166 MHz), package format (50-TSOP II), supply voltage range (3V ~ 3.6V), and operating temperature range (0°C ~ 70°C). These parameters define functional interchangeability in circuit applications.

Substiute Parts

AS4C1M16S-6TCN

Alliance Memory, Inc.In Stock: 976AS4C1M16S-6TCN Datasheet

Current PartRFQ

W9816G6JH-6

Winbond ElectronicsIn Stock: 1723W9816G6JH-6 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AS4C1M16S-6TCN is determined by strict equivalence across the following critical parameters:

• Memory capacity and organization (16Mbit, 1M x 16 configuration)
• Interface type (Parallel)
• Clock frequency (166 MHz)
• Package format (50-TSOP II)
• Supply voltage range (3V ~ 3.6V)
• Operating temperature range (0°C ~ 70°C)
• RoHS and environmental compliance status

The W9816G6JH-6 manufactured by Winbond Electronics meets all substitution criteria. This part maintains identical memory specifications, package configuration, voltage and temperature operating ranges, and compliance certifications. Access time specification (5 ns) is superior to the primary part (5.4 ns), indicating improved performance characteristics within the same functional category.

Parameter Comparison

Engineering Selection Recommendations

The AS4C1M16S-6TCN is designated as Active product status, indicating continued availability and suitability for new designs. The W9816G6JH-6 substitute is classified as Not For New Designs, reflecting its legacy status within Winbond's product portfolio.

For applications requiring new design qualification and long-term supply assurance, the AS4C1M16S-6TCN remains the primary selection. The W9816G6JH-6 is suitable for legacy system maintenance, repair, and retrofit applications where existing designs already incorporate this component.

Both parts maintain ROHS3 compliance and identical environmental certifications (REACH Unaffected, ECCN EAR99, HTSUS 8542.32.0002), ensuring regulatory compatibility across applications.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the AS4C1M16S-6TCN?

A: Substitution requires matching memory capacity (16Mbit), organization (1M x 16), interface type (Parallel), clock frequency (166 MHz), package format (50-TSOP II), supply voltage range (3V ~ 3.6V), and operating temperature range (0°C ~ 70°C). Access time may vary provided it meets or exceeds the original specification.

Q: Is the W9816G6JH-6 electrically compatible with the AS4C1M16S-6TCN?

A: Yes. Both parts share identical memory specifications, voltage requirements, temperature operating range, and 50-TSOP II package configuration. The W9816G6JH-6 features superior access time (5 ns versus 5.4 ns), maintaining full functional compatibility.

Q: Can the W9816G6JH-6 be used in new product designs?

A: The W9816G6JH-6 carries Not For New Designs status. For new applications, the AS4C1M16S-6TCN (Active status) is the recommended selection to ensure long-term supply continuity and design support.

Q: Are there package or pinout differences between these parts?

A: No. Both parts use identical 50-TSOP II packaging (0.400", 10.16mm width) with surface mount configuration, ensuring direct mechanical and electrical compatibility on PCB layouts.

Q: What is the significance of the access time difference?

A: The W9816G6JH-6 access time of 5 ns is faster than the AS4C1M16S-6TCN specification of 5.4 ns. This represents improved performance and does not create compatibility issues in applications designed for the original part.

Q: Are both parts RoHS compliant?

A: Yes. Both the AS4C1M16S-6TCN and W9816G6JH-6 are ROHS3 compliant with identical moisture sensitivity levels (MSL 3, 168 Hours) and environmental certifications.