AS7C1026C-15TIN Equivalent & Substitute Parts

Part Overview

The AS7C1026C-15TIN is a 1Mbit asynchronous SRAM memory IC manufactured by Alliance Memory, Inc., organized as 64K x 16 with a 15 ns access time in a 44-TSOP2 surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible memory solutions.

The part operates within a 4.5V to 5.5V supply voltage range and supports a temperature range of -40°C to 85°C. Its parallel interface and specific timing characteristics define the substitution criteria for compatible alternatives.

Key Parameters

Parameter	Value
Memory Size	1Mbit
Memory Organization	64K x 16
Memory Format	SRAM
Technology	SRAM - Asynchronous
Access Time	15 ns
Write Cycle Time	15 ns
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	44-TSOP (0.400", 10.16mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution for the AS7C1026C-15TIN is determined by the following critical parameters:

Primary Substitution Criteria:

Memory capacity: 1Mbit (64K x 16 organization)
Memory type: Asynchronous SRAM with parallel interface
Package compatibility: 44-TSOP form factor
Access time: Equal to or faster than 15 ns
Supply voltage: Must support 4.5V ~ 5.5V range
Temperature range: Must support -40°C ~ 85°C minimum
RoHS3 compliance and MSL 3 rating

Substitution Groups:

Group 1 - Direct Functional Equivalents (15 ns access time, full temperature range):

71016S15PHGI8 (Renesas, 15 ns, -40°C ~ 85°C)

Group 2 - Faster Access Time Equivalents (10-12 ns, full temperature range):

IS61WV6416DBLL-10TLI (ISSI, 10 ns, -40°C ~ 85°C)
IS61WV6416DBLL-10TLI-TR (ISSI, 10 ns, -40°C ~ 85°C)
IS61WV6416EEBLL-10TLI-TR (ISSI, 10 ns, -40°C ~ 85°C)
IS61C6416AL-12TLI (ISSI, 12 ns, -40°C ~ 85°C)

Group 3 - Moderate Speed Equivalents (20 ns access time, extended temperature range):

71016S20PHGI (Renesas, 20 ns, -40°C ~ 85°C)
71016S20PHG8 (Renesas, 20 ns, 0°C ~ 70°C)

Group 4 - Active Product Alternatives (different voltage/speed profiles):

AS7C1026B-15TCN (Alliance Memory, 15 ns, 0°C ~ 70°C)
AS6C1016-55ZIN (Alliance Memory, 55 ns, 2.7V ~ 5.5V, -40°C ~ 85°C)
IS62WV6416DBLL-45TLI-TR (ISSI, 45 ns, 2.3V ~ 3.6V, -40°C ~ 85°C)

Parameter Comparison

Part Number	Manufacturer	Memory Size	Organization	Access Time (ns)	Supply Voltage	Temp Range (°C)	Package	Status
AS7C1026C-15TIN	Alliance Memory	1Mbit	64K x 16	15	4.5V ~ 5.5V	-40 ~ 85	44-TSOP2	Obsolete
AS7C1026B-15TCN	Alliance Memory	1Mbit	64K x 16	15	4.5V ~ 5.5V	0 ~ 70	44-TSOP2	Active
AS6C1016-55ZIN	Alliance Memory	1Mbit	64K x 16	55	2.7V ~ 5.5V	-40 ~ 85	44-TSOP II	Active
71016S15PHGI8	Renesas Electronics	1Mbit	64K x 16	15	4.5V ~ 5.5V	-40 ~ 85	44-TSOP II	Active
71016S20PHG8	Renesas Electronics	1Mbit	64K x 16	20	4.5V ~ 5.5V	0 ~ 70	44-TSOP II	Active
71016S20PHGI	Renesas Electronics	1Mbit	64K x 16	20	4.5V ~ 5.5V	-40 ~ 85	44-TSOP II	Active
IS61C6416AL-12TLI	ISSI	1Mbit	64K x 16	12	4.5V ~ 5.5V	-40 ~ 85	44-TSOP II	Active
IS61WV6416DBLL-10TLI	ISSI	1Mbit	64K x 16	10	2.4V ~ 3.6V	-40 ~ 85	44-TSOP II	Active
IS61WV6416DBLL-10TLI-TR	ISSI	1Mbit	64K x 16	10	2.4V ~ 3.6V	-40 ~ 85	44-TSOP II	Active
IS61WV6416EEBLL-10TLI-TR	ISSI	1Mbit	64K x 16	10	2.4V ~ 3.6V	-40 ~ 85	44-TSOP II	Active
IS62WV6416DBLL-45TLI-TR	ISSI	1Mbit	64K x 16	45	2.3V ~ 3.6V	-40 ~ 85	44-TSOP II	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select 71016S15PHGI8 when full compatibility with the original -40°C to 85°C temperature range and 4.5V to 5.5V supply voltage is required. This part maintains the 15 ns access time and is actively manufactured by Renesas Electronics with ROHS3 compliance and MSL 3 rating.

For Extended Temperature Range with Active Product Status: AS7C1026B-15TCN provides the same 15 ns timing but operates only to 70°C. This part is suitable for applications where the full -40°C to 85°C range is not required and active product support is prioritized.

For Faster Performance: IS61C6416AL-12TLI (12 ns) and IS61WV6416DBLL-10TLI variants (10 ns) offer improved access times. The IS61C6416AL-12TLI maintains the 4.5V to 5.5V supply range, while ISSI IS61WV6416 variants operate at 2.4V to 3.6V and require voltage domain verification before selection.

For Relaxed Timing Requirements: 71016S20PHGI supports 20 ns access time with full temperature range coverage (-40°C to 85°C) and is available in high inventory quantities, making it suitable for non-critical timing applications.

For Low-Voltage Applications: AS6C1016-55ZIN operates across 2.7V to 5.5V with 55 ns access time and full temperature range, providing flexibility for mixed-voltage system designs.

All recommended substitutes maintain ROHS3 compliance and MSL 3 moisture sensitivity ratings consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use a faster access time part as a substitute? A: Yes. Parts with equal or faster access times than 15 ns are functionally compatible. Faster parts (10 ns, 12 ns) will operate correctly in circuits designed for 15 ns timing. Verify that the supply voltage range of the substitute matches your system requirements.

Q: What is the difference between 44-TSOP2 and 44-TSOP II packaging? A: Both designations refer to the same 44-pin thin small outline package with 0.400" (10.16mm) width. These packages are mechanically and electrically compatible for PCB mounting and socket applications.

Q: Can I substitute a part with a different supply voltage range? A: Only if your system's actual operating voltage falls within both the original and substitute part's specified ranges. The AS7C1026C-15TIN requires 4.5V to 5.5V. Parts like IS61WV6416DBLL-10TLI (2.4V to 3.6V) are not compatible unless your system operates in that lower voltage range. AS6C1016-55ZIN (2.7V to 5.5V) is compatible if your system operates above 2.7V.

Q: Does temperature range affect substitution? A: Yes. The original part operates from -40°C to 85°C. Substitutes with narrower ranges (such as 0°C to 70°C) are only suitable if your application does not require full temperature coverage. For applications requiring -40°C operation, select parts explicitly rated to that minimum temperature.

Q: Are all listed substitutes in active production? A: No. The original AS7C1026C-15TIN is obsolete. All recommended substitutes are actively manufactured. AS7C1026B-15TCN is the direct Alliance Memory successor with active product status.

Q: What does RoHS3 compliance mean for substitution? A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances regulations. All listed substitutes maintain RoHS3 compliance, ensuring regulatory consistency with the original part.

Q: How does MSL 3 rating affect handling? A: MSL 3 (Moisture Sensitivity Level 3) specifies 168-hour floor life after moisture exposure. All substitutes maintain the same MSL 3 rating, so existing handling and storage procedures remain valid.

Q: Can I mix different substitute parts in the same system? A: Yes, provided each part meets the electrical and thermal requirements of its specific circuit location. Verify that access time, supply voltage, and temperature range specifications are appropriate for each location's functional requirements.

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