48L256T-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip 48L256T-I/SN is a 256 Kbit (32 KB) standard SRAM with 8-bit width and up to 66 MHz clock in an SOIC-8 package. Offers common I/O for easy integration in embedded memory expansion designs. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- 48L256T-I/SN 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
Key Features
- 256 Kbit (32 KB) SRAM density with 8-bit wide data bus for flexible embedded memory expansion
- Up to 66 MHz maximum clock frequency enabling high-speed data access in real-time applications
- Compact SOIC-8 package with JEDEC standard pinout simplifying PCB layout and board-level integration
Applications
The 48L256T-I/SN is suitable for microcontroller-based systems requiring fast external SRAM for data buffering, look-up tables, or stack expansion. Its 66 MHz operating speed makes it useful in communication equipment, industrial controllers, and consumer electronics needing rapid read/write cycles. The SOIC-8 footprint allows it to fit in space-constrained designs alongside processors and FPGAs.
Specifications
| Manufacturer Package Code | SOIC-8 |
| Date Of Intro | 2019-10-28 |
| YTEOL | 0 |
| Clock Frequency-Max (fCLK) | 66MHz |
| I/O Type | COMMON |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Memory Density | 262144bit |
| Memory IC Type | STANDARD SRAM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 32768words |
| Number of Words Code | 32000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 32KX8 |
| Output Characteristics | 3-STATE |
| Output Enable | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Parallel/Serial | SERIAL |
| Standby Current-Max | 0.0003A |
| Standby Voltage-Min | 2.7V |
| Supply Current-Max | 0.005mA |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What memory density and bus width does the 48L256T-I/SN provide for embedded system expansion?
The 48L256T-I/SN offers 256 Kbit (32 KB) of standard SRAM with an 8-bit wide data bus. This makes it suitable for expanding program or data memory in microcontroller designs where speed and density both matter in a compact SOIC-8 footprint.
How fast can the 48L256T-I/SN operate, and what interface type does it use?
The 48L256T-I/SN supports a maximum clock frequency of 66 MHz with a common I/O interface type, allowing simultaneous read and write bus sharing. This speed is adequate for most real-time embedded applications, including data logging, sensor fusion, and communication protocol buffering.
Which package does the 48L256T-I/SN use and how does that affect PCB layout?
The 48L256T-I/SN comes in a standard SOIC-8 package with JESD-30 code R-PDSO-G8. This 8-pin small-outline package has a well-known land pattern, is compatible with automated soldering, and fits into compact two-layer PCBs without requiring fine-pitch routing or specialized assembly equipment.
When would a designer choose 48L256T-I/SN over a larger density SRAM for a low-power IoT node?
For an IoT sensor node that only needs 256 Kbit of external SRAM for packet buffering and sensor data queuing, the 48L256T-I/SN keeps cost and power consumption lower than larger 1 Mbit or 4 Mbit alternatives. Its SOIC-8 footprint also minimizes board area on 50 mm × 50 mm or smaller PCBs.
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