IS42S32800G-7BLI ISSI, Integrated Silicon Solution Inc Integrated Circuit (BGA) In Stock
IS42S32800G-7BLI is an ISSI 256 Mb SDR SDRAM organized as 8M × 32 bits, operating at up to 143 MHz with a 3.3 V supply in a 90-ball BGA package. Key specs: 143 MHz max clock, 5.4 ns access time, 4-bank architecture, auto/self-refresh, burst lengths 1/2/4/8. Available globally from authorized distributors with fast worldwide shipping.
- Manufacturer
- ISSI, Integrated Silicon Solution Inc
- Package
- BGA
- Pin Count
- 90
- Lifecycle
- OBSOLETE
- Datasheet
- IS42S32800G-7BLI Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of IS42S32800G-7BLI?
- 256 Mb (8M × 32-bit) SDR SDRAM delivering 32-bit wide data bus for high-throughput embedded memory
- 143 MHz max clock frequency with 5.4 ns access time for fast frame buffer and data buffering applications
- 4-bank page-burst architecture with interleaved burst lengths of 1, 2, 4, and 8 for flexible memory access patterns
- Auto-refresh and self-refresh modes enabling low-power standby operation in battery-powered and embedded systems
- 3.3 V supply in a 90-ball BGA package minimizing PCB footprint versus equivalent TSOP-II SDRAM
What is IS42S32800G-7BLI used for?
The IS42S32800G-7BLI is used as main working memory in embedded processors, FPGAs, DSPs, and microcontrollers requiring a wide 32-bit data bus and burst access speeds up to 143 MHz. Common deployment scenarios include video frame buffers in LCD display controllers, real-time data acquisition systems, and network equipment packet buffers where low latency and 256 Mb capacity must coexist with a compact BGA PCB footprint. Its auto- and self-refresh capability also makes it suitable for low-power IoT gateways and industrial HMI panels that spend long periods in standby.
What are the specifications of IS42S32800G-7BLI?
| Reach Compliance Code | Compliant |
| YTEOL | 0 |
| Access Mode | FOUR BANK PAGE BURST |
| Access Time-Max | 5.4ns |
| Additional Feature | AUTO/SELF REFRESH |
| Clock Frequency-Max (fCLK) | 143MHz |
| I/O Type | COMMON |
| Interleaved Burst Length | 1,2,4,8 |
| JESD-30 Code | R-PBGA-B90 |
| Memory Density | 268435456bit |
| Memory IC Type | SYNCHRONOUS DRAM |
| Memory Width | 32 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 8388608words |
| Number of Words Code | 8000000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 8MX32 |
| Output Characteristics | 3-STATE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA90,9X15,32 |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Refresh Cycles | 4096 |
| Self Refresh | YES |
| Sequential Burst Length | 1,2,4,8,FP |
| Standby Current-Max | 0.003A |
| Supply Current-Max | 0.27mA |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | BALL |
| Terminal Pitch | 0.8mm |
| Terminal Position | BOTTOM |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.24 |
| Country of Origin | Mainland China, Taiwan |
Where can I find the IS42S32800G-7BLI datasheet?
IS42S32800G-7BLI Datasheet DownloadOfficial datasheet from ISSI, Integrated Silicon Solution Inc
What are equivalent replacements for IS42S32800G-7BLI?
Compatible alternatives and drop-in replacements for IS42S32800G-7BLI:
Frequently Asked Questions
What organization and bus width does IS42S32800G-7BLI offer, and how does that benefit FPGA frame buffer designs?
IS42S32800G-7BLI is organized as 8M × 32 bits, providing a 32-bit wide data bus that transfers 4 bytes per clock cycle. At 143 MHz, this delivers a peak bandwidth of approximately 572 MB/s, sufficient to sustain a 1080p video frame buffer refresh at 60 Hz with bandwidth to spare for simultaneous FPGA read and write operations in dual-port usage patterns.
What is the maximum clock frequency and access time of IS42S32800G-7BLI, and what speed-grade does that correspond to?
IS42S32800G-7BLI supports a maximum clock frequency of 143 MHz with a 5.4 ns access time, corresponding to a -7 speed grade in ISSI's naming convention. This clock rate meets the timing requirements of most embedded processors running at 100–133 MHz system bus speeds, with the 5.4 ns access time comfortably fitting within a single 7 ns clock period at 143 MHz with nanoseconds of margin.
How does the 4-bank architecture of IS42S32800G-7BLI improve effective memory throughput compared to single-bank SDRAM?
The 4-bank architecture allows IS42S32800G-7BLI to pipeline row activations across 4 independent banks, hiding the row precharge latency of approximately 20 ns between consecutive burst accesses. This can improve effective throughput by 25–40% in random-access patterns typical of DSP scatter-gather DMA transfers and RTOS task switching, compared to single-bank devices of equivalent density that must stall during row precharge.
When sourcing IS42S32800G-7BLI, are there compatible alternative SDRAMs that share the same 90-ball BGA pinout?
Several ISSI variants in the IS42S/IS45S family share the 90-ball BGA package footprint, including IS42S32800G in -6 and -7BL speed grades, allowing a drop-in substitution with only a timing constraint update in the memory controller. Competing parts from Winbond (W9825G6KH) and Alliance Semiconductor (AS4C8M32S) offer similar 256 Mb, 32-bit SDR SDRAM in compatible BGA packages, though pin-compatibility should be verified against respective datasheets before committing to a board layout change.
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About ISSI, Integrated Silicon Solution Inc
ISSI, Integrated Silicon Solution Inc is a leading electronic component manufacturer. FindMyChip sources ISSI, Integrated Silicon Solution Inc ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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