48L512T-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip 48L512T-I/SN is a 512 Kbit (64 K × 8-bit) standard SRAM in an 8-pin SOIC package with up to 66 MHz clock frequency and 8-bit I/O width. It delivers fast random-access read and write operations with no initialization delay, making it ideal for buffer and cache memory in embedded systems. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- 48L512T-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
What are the key features of 48L512T-I/SN?
- 512 Kbit (64 K × 8-bit) SRAM organization provides fast random-access memory with zero wait-state reads at up to 66 MHz
- 8-pin SOIC-8 package enables dense PCB integration in space-constrained embedded designs
- RoHS-compliant (JESD-609 Code e3) lead-free construction suitable for automotive and industrial applications
- Standard SRAM type with no battery backup or initialization required, simplifying system bring-up and power-down design
What is 48L512T-I/SN used for?
The 48L512T-I/SN is used as a fast external data buffer, lookup table store, or scratchpad memory in embedded microcontroller and DSP systems requiring low-latency 8-bit wide memory access at up to 66 MHz. Its 512 Kbit capacity suits applications such as industrial data logging, communication protocol buffering, and real-time control loops where internal MCU SRAM is insufficient. The compact SOIC-8 package makes it suitable for cost-sensitive designs in consumer electronics and sensor nodes where PCB space is limited.
What are the specifications of 48L512T-I/SN?
| 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 | 524288bit |
| Memory IC Type | STANDARD SRAM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 65536words |
| Number of Words Code | 64000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 64KX8 |
| 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 | 0.0002A |
| 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 |
Where can I find the 48L512T-I/SN datasheet?
48L512T-I/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for 48L512T-I/SN?
Compatible alternatives and drop-in replacements for 48L512T-I/SN:
suggested
suggested
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suggested
Frequently Asked Questions
What is the memory capacity and organization of the 48L512T-I/SN SRAM?
The 48L512T-I/SN is organized as 64 K words × 8 bits, giving a total capacity of 512 Kbits (64 KB). It supports 8-bit parallel data access with address and data buses managed externally by the host MCU or FPGA, providing full random-access read and write at clock frequencies up to 66 MHz with no mandatory wait states.
How fast can the 48L512T-I/SN be clocked, and what MCU bus interface speeds does it support?
The 48L512T-I/SN supports a maximum clock frequency of 66 MHz on its I/O interface, equivalent to approximately 15 ns cycle time. This speed is compatible with the external memory bus of most 8-bit and 32-bit MCUs operating at 50 MHz to 66 MHz, including PIC32 and STM32 series devices that implement an external bus interface (EBI or FSMC) in asynchronous or synchronous mode.
For an industrial data-logging application needing 64 KB of fast buffer memory, how does 48L512T-I/SN compare to using internal MCU SRAM?
When an MCU's internal SRAM is less than 64 KB—common in mid-range Cortex-M0 or Cortex-M3 devices with 16 KB to 32 KB internal RAM—adding the 48L512T-I/SN via an 8-bit external bus provides 512 Kbits (64 KB) of additional zero-wait-state buffer space. The SOIC-8 package adds only about 150 mm² of PCB area, far less than the cost and complexity of migrating to a higher-end MCU with more internal RAM.
Is the 48L512T-I/SN suitable for automotive or harsh-environment designs?
The -I suffix in 48L512T-I/SN denotes industrial temperature grade, covering operation from -40°C to +85°C. The JESD-609 Code e3 indicates RoHS lead-free compliance. While not AEC-Q100 automotive-qualified by name, the -40°C to 85°C industrial range covers most automotive body electronics and infotainment applications where underhood temperatures do not exceed 85°C at the memory device location.
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