AS7C1026B-10TCN Equivalent & Substitute Parts

Part Overview

The AS7C1026B-10TCN is a 1Mbit asynchronous SRAM memory IC manufactured by Alliance Memory, Inc., configured as 64K x 16 with parallel interface and 10 ns access time. This component operates at 4.5V to 5.5V supply voltage and is rated for 0°C to 70°C operating temperature. The part is actively produced and ROHS3 compliant, making it suitable for legacy and current industrial applications requiring high-speed volatile memory.

Substitute parts are necessary when the primary part reaches end-of-life, inventory constraints occur, or when design requirements permit operation within broader electrical or thermal specifications.

Substiute Parts

AS7C1026B-10TCN

Alliance Memory, Inc.In Stock: 4574AS7C1026B-10TCN Datasheet

Current PartRFQ

AS6C1016-55ZIN

Alliance Memory, Inc.In Stock: 1465AS6C1016-55ZIN Datasheet

MFR RecommendedRFQ

71016S15PHG

IDT, Integrated Device Technology IncIn Stock: 161171016S15PHG Datasheet

MFR RecommendedRFQ

71016S15PHGI

Renesas Electronics CorporationIn Stock: 158971016S15PHGI Datasheet

MFR RecommendedRFQ

71016S20PHG

Renesas Electronics CorporationIn Stock: 79571016S20PHG Datasheet

MFR RecommendedRFQ

71016S20PHGI

Renesas Electronics CorporationIn Stock: 10706771016S20PHGI Datasheet

MFR RecommendedRFQ

71V016SA12PHGI8

Renesas Electronics CorporationIn Stock: 92771V016SA12PHGI8 Datasheet

MFR RecommendedRFQ

71V016SA20PHG

Renesas Electronics CorporationIn Stock: 132771V016SA20PHG Datasheet

MFR RecommendedRFQ

IS61C6416AL-12TLI

Integrated Silicon SolutionIn Stock: 11449IS61C6416AL-12TLI Datasheet

MFR RecommendedRFQ

IS61WV6416DBLL-10TLI

ISSI, Integrated Silicon Solution IncIn Stock: 2424IS61WV6416DBLL-10TLI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Critical Parameters (Must Match or Exceed):

• Memory Size: 1Mbit
• Memory Organization: 64K x 16
• Memory Interface: Parallel
• Package Type: 44-TSOP
• Mounting Type: Surface Mount

Performance Parameters (Must Meet or Exceed):

• Access Time: ≤ 10 ns
• Write Cycle Time: ≤ 10 ns

Electrical Compatibility:

• Voltage Supply Range: Must include or be compatible with 4.5V ~ 5.5V
• Operating Temperature: Must support minimum 0°C ~ 70°C range

Substitute parts are grouped by access time performance. Parts with equal or faster access times (10 ns, 12 ns, 15 ns, 20 ns, 55 ns) are listed with their respective voltage and temperature specifications. Parts with slower access times or incompatible voltage ranges are included only when voltage overlap exists with the primary part's 4.5V ~ 5.5V specification.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Voltage and Temperature Compatible):

The following parts maintain full compatibility with the AS7C1026B-10TCN operating envelope of 4.5V ~ 5.5V and 0°C ~ 70°C:

• 71016S15PHG and 71016S15PHGI: 15 ns access time, suitable for applications where timing margin permits slower operation. 71016S15PHGI extends temperature range to -40°C ~ 85°C.
• 71016S20PHG and 71016S20PHGI: 20 ns access time, acceptable for non-critical timing paths. 71016S20PHGI provides extended temperature range.
• IS61C6416AL-12TLI: 12 ns access time with 4.5V ~ 5.5V compatibility and extended temperature range (-40°C ~ 85°C), offering performance margin above the primary part.

Conditional Substitutes (Voltage or Temperature Derating Required):

• AS6C1016-55ZIN: Slower 55 ns access time but supports extended voltage range (2.7V ~ 5.5V) and temperature range (-40°C ~ 85°C). Suitable only for applications with relaxed timing requirements.
• 71V016SA12PHGI8 and 71V016SA20PHG: Operate at 3V ~ 3.6V supply voltage, incompatible with the primary part's 4.5V ~ 5.5V specification. Not suitable for direct substitution.
• IS61WV6416DBLL-10TLI: Matches 10 ns access time but operates at 2.4V ~ 3.6V, incompatible with 4.5V ~ 5.5V requirement. Not suitable for direct substitution.

Recommended Primary Substitutes:

1. IS61C6416AL-12TLI — Best overall compatibility with performance margin, ROHS3 compliant, extended temperature range.
2. 71016S20PHGI — Proven Renesas part, ROHS3 compliant, extended temperature range, acceptable timing for most applications.
3. 71016S15PHGI — Intermediate performance option, ROHS3 compliant, extended temperature range.

All recommended substitutes are ROHS3 compliant and maintain the 44-TSOP package form factor.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with slower access time than the original AS7C1026B-10TCN?

A: Yes, if your circuit timing analysis confirms that the slower access time does not violate setup or hold time requirements. Parts with 12 ns, 15 ns, or 20 ns access times are functionally compatible with the 10 ns original, provided the system clock and memory access timing accommodate the increased latency.

Q: What is the voltage compatibility issue with IS61WV6416DBLL-10TLI and 71V016SA parts?

A: These parts operate at 2.4V ~ 3.6V or 3V ~ 3.6V supply voltage, while the AS7C1026B-10TCN requires 4.5V ~ 5.5V. Direct substitution is not possible without circuit redesign to support dual voltage supplies or voltage conversion.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitutes are ROHS3 compliant. The IDT 71016S15PHG does not specify RoHS status in available documentation and should be verified with the manufacturer before use in RoHS-restricted applications.

Q: Does the package type differ between substitute parts?

A: All listed substitutes use the 44-TSOP package with 0.400" (10.16mm) width. Packaging format (Tray, Tube, Tape & Reel) differs but does not affect electrical or mechanical compatibility on the PCB.

Q: Can I use AS6C1016-55ZIN as a substitute?

A: AS6C1016-55ZIN is functionally compatible but operates at 55 ns access time, significantly slower than the original 10 ns. Use only in applications where timing analysis confirms this performance is acceptable. The part offers advantages in extended voltage range (2.7V ~ 5.5V) and temperature range (-40°C ~ 85°C) for harsh environment applications.

Q: What is the difference between 71016S20PHG and 71016S20PHGI?

A: Both are Renesas 1Mbit SRAM with 20 ns access time and 4.5V ~ 5.5V compatibility. The primary difference is operating temperature range: 71016S20PHG operates 0°C ~ 70°C (matching the original), while 71016S20PHGI extends to -40°C ~ 85°C. Select based on your application's thermal requirements.

Q: Is IS61C6416AL-12TLI a better choice than the original part?

A: IS61C6416AL-12TLI offers 12 ns access time (faster than the original 10 ns), full voltage compatibility (4.5V ~ 5.5V), and extended temperature range (-40°C ~ 85°C). It is a suitable upgrade option for applications requiring improved thermal performance or extended operating range, with no timing penalties.