MT58L64L32PT7.5 - 2Mbit Sync Burst SRAM 133MHz | Micron
MPN: MT58L64L32PT7.5 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $26.1 | $261.00 |
| 100 | $23.8 | $2,380.00 |
| 500 | $21.4 | $10,700.00 |
| 1,000 | $19.9 | $19,900.00 |
Drop-in alternatives for MT58L64L32PT7.5 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
MT58L64L32PT-7.5A
β Drop-Inπ Reference alternative (not in catalog)
MT58L64L32PT-6
β Drop-Inπ Reference alternative (not in catalog)
MT58L64L32FT-10
β Drop-Inβ In Stock
Contact for price
View Datasheet βMT58L64L32FT-7.5
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
MT58L64L32DT-7.5
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
MT58L64L32PT7.5 Maximum Ratings & Electrical Characteristics
| Memory Type | SRAM - Synchronous (SYNCBURST Pipelined) |
| Memory Size | 2 Mbit |
| Organization | 64K x 32 |
| Clock Frequency | 133 MHz |
| Access Time | 4 ns |
| Supply Voltage Range | 3.135 V to 3.6 V |
| Interface | Parallel |
| Package | 100-TQFP (14 x 20.1 mm) |
| Mounting Type | Surface Mount |
| Lead Pitch | 0.5 mm |
| Memory Format | Volatile |
| I/O Type | LVTTL-compatible 3.3V |
| Manufacturer | Micron Technology (also listed under Samsung Semiconductor, Inc. marketplace listing) |
MT58L64L32PT7.5 100-tqfp (14 x 20.1 mm) Pin Configuration Guide
Complete pinout information for MT58L64L32PT7.5 (100-tqfp (14 x 20.1 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MT58L64L32PT7.5.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
MT58L64L32PT7.5 is suitable for 6 applications: Embedded Processor Cache Memory, FPGA Design Buffer and Expansion Memory, Telecommunications Line-Card Buffering, Test and Measurement Instrumentation, Industrial Control and Legacy System Sustainment, Graphics and Video Frame Buffer Support.
Embedded Processor Cache Memory
The MT58L64L32PT7.5 serves as external L2 cache for embedded PowerPC, MIPS, and ARM processors of the 3.3V generation. Its 64K x 32 organization matches a full 32-bit data bus without byte-lane partitioning, and the 133 MHz pipelined burst interface with 4 ns clock-to-data access sustains zero-wait-state back-to-back burst reads over the linear/interleaved burst orders required by common CPU bus protocols. Placed directly on the processor's dedicated cache bus with short matched-length address traces, the SRAM registers the address internally, easing controller timing. The trade-off versus on-chip cache is added board area, but 2Mbit of deterministic SRAM was the standard expansion path for this processor class.
Recommended
FPGA Design Buffer and Expansion Memory
FPGA designs frequently need fast external lookup, FIFO, or buffer memory beyond on-chip block RAM capacity. The MT58L64L32PT7.5 connects directly to a 3.3V LVCMOS/LVTTL FPGA bank because its 3.135V to 3.6V supply matches common I/O standards, eliminating level shifters. Implementing the burst controller (CLK, CEN, ADV, WE, OE) in FPGA fabric is straightforward, and the 4 ns access time supports a 133 MHz state machine with margins for trace delay on a conventional FR-4 board. Designers should budget clock-to-out plus board delay against the FPGA capture window; at 133 MHz the 7.5 ns cycle leaves workable but finite margin, so keep trace lengths under about 50 mm for source-synchronous capture.
Recommended
Telecommunications Line-Card Buffering
Telecom and networking line cards of the 3.3V era used synchronous burst SRAM as packet buffers, statistics counters, and list-management memory. The MT58L64L32PT7.5's 64K x 32 array suits 32-bit-wide packet descriptors, and its fully synchronous interface aligns naturally with the fixed-clock pipeline of a framer or network processor. The 133 MHz operation supports OC-3/OC-12 class throughput on a 32-bit bus, and the byte-write enable scheme allows per-byte updates for header modification without read-modify-write cycles. Because latency is deterministic (one pipeline cycle), buffer management software can rely on fixed timing, which is harder to guarantee with asynchronous SRAM.
Recommended
Test and Measurement Instrumentation
Oscilloscope, logic analyzer, and data-acquisition front ends need deep, fast capture memory with deterministic timing. The MT58L64L32PT7.5 provides 2Mbit of 133 MHz synchronous capture storage; its 4 ns access allows sample streaming from a 32-bit-wide acquisition path without wait states. In instruments, the pipelined architecture's fixed one-cycle latency simplifies trigger alignment logic because data position is exactly known relative to the clock. Designers should separate the memory's supply plane from analog acquisition circuitry to prevent digital switching noise coupling into sensitive analog channels, using a solid ground plane and localized 0.1 uF decoupling at each of the TQFP's supply pins.
Recommended
Industrial Control and Legacy System Sustainment
Industrial controllers, motion systems, and legacy PLCs designed around the MT58L64L32 family require continued sourcing as the part is EOL. The MT58L64L32PT7.5's 3.3V LVTTL interface keeps it compatible with surviving 3.3V controller ASICs, and its 100-TQFP package supports standard reflow repair on existing boards. For sustainment, qualify the same-family variants (-7.5A, -6, FT-10) which share the identical footprint and pinout, allowing direct board drop-in without PCB respin. Stock strategy matters more than design here: secure verified date codes from authorized excess (Rochester Electronics) rather than unverified broker stock, and burn-in sample lots before fleet-wide replacement.
Recommended
Graphics and Video Frame Buffer Support
Video and graphics subsystems of the late-1990s class used synchronous burst SRAM for line buffers, CLUT storage, and small frame caches. The MT58L64L32PT7.5's 32-bit-wide data port and 133 MHz burst capability sustain the multi-megapixel-per-second streaming required for standard-definition video, while the deterministic pipelined timing simplifies the pixel-clock domain crossing design. The 64K x 32 organization maps naturally onto 32-bit pixel words. Designers should drive the burst address counter in linear order for raster scan and reserve byte-write enables for color-keyed pixel updates, achieving efficient blended rendering without full-word read-modify-write overhead.
Recommended
Recommended Products Summary
Engineering reference data for MT58L64L32PT7.5 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MT58L64L32PT-7.5A | MT58L64L32PT-6 | MT58L64L32FT-10 |
|---|---|---|---|---|
| Package | 100-TQFP (14 x 20.1 mm) | 100-TQFP (14 x 20.1 mm) - same | 100-TQFP (14 x 20.1 mm) - same | 100-TQFP (14 x 20.1 mm) - same |
| Brand | Micron Technology | Micron Technology | Micron Technology | Micron Technology |
| Memory Organization | 64K x 32 | 64K x 32 | 64K x 32 | 64K x 32 |
| Memory Size | 2 Mbit | 2 Mbit | 2 Mbit | 2 Mbit |
| Clock Frequency | 133 MHz | 133 MHz | ~150 MHz class | 100 MHz class |
| Access Time | 4 ns | 4 ns | [DATA_NEEDED] | [DATA_NEEDED] |
| Supply Voltage | 3.135 V to 3.6 V | 3.135 V to 3.6 V | 3.135 V to 3.6 V | 3.135 V to 3.6 V |
| Architecture | Synchronous pipelined burst (SYNCBURST) | Synchronous pipelined burst | Synchronous pipelined burst | Synchronous pipelined burst |
| Lifecycle Status | EOL | EOL | EOL | EOL |
Key Differentiators
- Fastest standard grade in the verified family set at 133 MHz (vs MT58L64L32FT-10)
- 32-bit-wide organization eliminates byte-lane fan-out (vs MT58L64L32PT-7.5A)
- Trade-off: EOL status versus the -6 grade's extra margin (vs MT58L64L32PT-6)
Design Notes
Decouple each VDD pin of the 100-TQFP with a 0.1 uF ceramic placed within 3 mm of the pin, plus one 10 uF bulk capacitor per device. At 133 MHz, synchronous burst SRAM draws pulsed core current on every clock edge; a solid ground plane under the device is essential to keep ground bounce within LVTTL noise margins. Keep address and clock traces matched within 10 mm for source-synchronous capture and limit stub lengths on the shared data bus to prevent reflections at the 4 ns access-time edge rates.
The 4 ns clock-to-data output means edges fast enough to produce meaningful overshoot on 15 cm traces. Use series termination (22-33 ohm) on the SRAM clock and on data lines driving long shared buses. Synchronous control inputs (CLK, CEN, ADV, WE, OE, CE) must never float; tie unused enables to their inactive levels per the datasheet, since undefined control states at power-up can corrupt the burst counter or drive bus contention. Ensure the FPGA/ASIC output timing meets the datasheet setup and hold windows across temperature, not just at room.
This family is EOL, so lot-to-lot variance and counterfeit risk in broker channels are real concerns: request date codes, certificates of conformance, and sample verification before volume buys. Do not confuse the -7.5 speed grade with the -7.5A revision or the slower FT-10 grade when kitting spares; the FT-10 will fail timing in a 133 MHz system despite being footprint-identical. Finally, verify the actual operating temperature range printed on the device marking, since the family shipped in commercial and industrial temperature flows with different suffixes.
Compliance Information
Part predates RoHS (2006); compliance varies by date code and must be confirmed from the lot's certificate of conformance or Micron's environmental archive.
