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ISSI

IS42S16400-7T

SDRAM · TSOP-54 · Memory
Part Status: Obsolete In demand
Data last refreshed Jun 19, 2026
Manufacturer
ISSI
Mfr Part #
IS42S16400-7T
Series
IS42S16400
Category
SDRAM
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels2
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Live pricing on request · most quotes same business day

Cross Reference for IS42S16400-7T

Alliance Memory published cross-reference · IS42S16400 family

ZD Integrated Circuits is an authorized distributor of Alliance Memory. Alliance Memory publishes the parts below as cross-references for the IS42S16400 family, which includes IS42S16400-7T. Confirm speed grade, temperature range and package against the datasheet before substituting.

Alliance Memory partFamilyTechnologyDensityOrganizationMatch
AS4C4M16SA-5TCN AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-5TCNTR AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6BAN AS4C4M16SA-6/7BxN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6BANTR AS4C4M16SA-6/7BxN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6BIN AS4C4M16SA-6/7BxN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6BINTR AS4C4M16SA-6/7BxN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6TAN AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6TANTR AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6TCN AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6TCNTR AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6TIN AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-6TINTR AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-7B2CN AS4C4M16SA-6/7BxN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-7BCN AS4C4M16SA-6/7BxN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-7BCNTR AS4C4M16SA-6/7BxN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-7TCN AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SA-7TCNTR AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SB-6TIN AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
AS4C4M16SB-6TINTR AS4C4M16SA-5/6/7TxNAS4C4M16SB-6TIN Synchronous DRAM 3.3V64Mb4M x 16 Family Quote →
Source: Alliance Memory published cross-reference data · alliancememory.com ↗

Product Attributes

Electrical & Parametric
Density64Mb
Organization4M×16
Speed7ns
Voltage3.3V
Physical & Thermal
Package / CaseTSOP-54
Mounting TypeSurface Mount
SeriesIS42S16400
Classification & Lifecycle
CategorySDRAM
TypeMemory
Part StatusObsolete

64Mb SDRAM, 4M×16, 143MHz, 3.3V, TSOP-II-54

Availability & Sourcing

2 sources
SourceMfrQtyDate CodeConditionStatus
Live ISSI 5 — — Live RFQ
Market ISSI 5 — — Available RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Part Activity

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IS42S16400-7T viewed on the web · Web User
IS42S16400-7T viewed on the web · Web User
IS42S16400-7T viewed on the web · Web User
IS42S16400-7T viewed on the web · Web User
IS42S16400-7T viewed on the web · Web User
IS42S16400-7T viewed on the web · Web User
IS42S16400-7T viewed on the web · Web User
IS42S16400-7T searched via the web · Web User

Recent search and sourcing activity for IS42S16400-7T.

Engineering FAQ

Is there an Alliance Memory cross-reference for IS42S16400-7T?
Alliance Memory publishes 19 cross-references for the IS42S16400 family, which includes IS42S16400-7T: AS4C4M16SA-5TCN, AS4C4M16SA-5TCNTR, AS4C4M16SA-6BAN, AS4C4M16SA-6BANTR, AS4C4M16SA-6BIN, …. ZD Integrated Circuits is an authorized distributor of Alliance Memory — confirm speed grade, temperature range and package against the datasheet, then request a quote for pricing and lead time.
IS42S16400-7T is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What are the key specifications of IS42S16400-7T?
Density: 64Mb; Organization: 4M×16; Speed: 7ns; Voltage: 3.3V.
What package is IS42S16400-7T supplied in?
IS42S16400-7T is supplied in the TSOP-54 package, surface mount.
Can ZDI source IS42S16400-7T beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

IS42S16400-7T is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

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