Part A
70V27L20PFGI
미국 리사 전자 회사
- Lifecycle
- Active
- Stock
- 3315 PCS
- Package
- LQFP-100
- Series
- 기억력
Replacement verdict
Compatible functional replacement candidate
The 70V27L20PFGI and 70V27L20PF8 are functionally equivalent dual-port SRAM devices from the same manufacturer, sharing identical core specifications including 32K x 16 organization, 3.3V supply, 20ns access time, and TQFP-100 packaging. The only verified distinction is the shipping or packaging format suffix, which does not affect electrical performance or functional operation. Both parts are suitable for direct substitution in new designs and existing applications where the 70V27L20 series is specified.
Memory Organization
High match
Access Time
High match
Supply Voltage
High match
Package Type
High match
Parts at a glance
Part B
70V27L20PF8
미국 리사 전자 회사
- Lifecycle
- Active
- Stock
- 5304 PCS
- Package
- LQFP-100
- Series
- 기억력
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 70V27L20PFGI | 70V27L20PF8 | Why it matters |
|---|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc | Identical manufacturer ensures the same design, process, and quality standards for both parts. |
| Memory Type | SRAM - Dual Port, Asynchronous | SRAM - Dual Port, Asynchronous | Both are asynchronous dual-port SRAMs, so they serve the same functional role in shared-memory architectures. |
| Memory Size | 32Kbit (2K x 16) | 32Kbit (2K x 16) | Matching density and organization ensures identical addressable storage capacity and data width. |
| Access Time | 20 ns | 20 ns | Same access time means equivalent read/write speed and timing compatibility in the target system. |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | Identical operating voltage range allows direct substitution without power supply changes. |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | Same temperature range ensures both parts work in the same environmental conditions. |
| Package / Case | 100-LQFP | 100-LQFP | Identical package and pinout enable drop-in replacement on the same PCB footprint. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style ensures compatibility with the existing assembly process. |
| Packaging | Tray | Tape & Reel | Different packaging affects handling, inventory, and automated assembly line requirements. |
| RoHS Status | RoHS Compliant | RoHS Compliant | Both meet RoHS requirements, ensuring environmental and regulatory compliance. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 70V27L20PFGI | 70V27L20PF8 |
|---|---|---|
| Supplier | - | Renesas Electronics America Inc |
| Part Status | Active | Obsolete |
| Memory Type | Volatile | Volatile |
| Memory Format | SRAM | SRAM |
| Technology | SRAM - Dual Port, Asynchronous | SRAM - Dual Port, Asynchronous |
| Memory Size | 512Kb (32K x 16) | 512Kb (32K x 16) |
| Memory Interface | Parallel | Parallel |
| Write Cycle Time - Word Page | 20ns | 20ns |
| Access Time | 20 ns | 20 ns |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the 70V27L20PFGI and 70V27L20PF8?
Both are 3.3V 32K x 16 dual-port static RAM devices from Renesas (formerly IDT) in a 100-pin TQFP package, specified with a 20 ns maximum access time. The 70V27L20PFGI and 70V27L20PF8 share the same core dual-port SRAM architecture, asynchronous operation, and 3.3V supply range.
What is the difference between the 70V27L20PFGI and 70V27L20PF8?
The suffix difference reflects ordering and packaging attributes rather than electrical performance. The 70V27L20PFGI is specified as a Green (Pb-free/RoHS-compliant) 100-pin TQFP tray option, while the 70V27L20PF8 is the corresponding tape-and-reel ordering option. Both retain the same 20 ns speed grade, 3.3V operation, and 100-pin TQFP package.
Are the 70V27L20PFGI and 70V27L20PF8 electrically interchangeable?
Yes. Because both part numbers share the same base device, speed grade, supply voltage, and package, they are electrically and functionally interchangeable. The only practical difference is the shipping media (tray versus tape-and-reel) and the associated ordering suffix.
What is the memory organization and capacity of these devices?
Each device provides 32K x 16 organization, which equals 512K bits (64 KB) of dual-port SRAM. The two independent ports allow simultaneous read/write access to any memory location from either port.
What supply voltage and access time do the 70V27L20PFGI and 70V27L20PF8 support?
Both devices operate from a 3.3V nominal supply and are rated for a 20 ns maximum access time. This speed grade is indicated by the "20" in the part number.
What package type do the 70V27L20PFGI and 70V27L20PF8 use?
Both are offered in a 100-pin TQFP (Thin Quad Flat Pack) package. The "PF" in the part number designates this package family, and the "G" in 70V27L20PFGI indicates Green/RoHS-compliant construction.
Can the 70V27L20PFGI and 70V27L20PF8 be used in the same PCB footprint?
Yes. Since both parts use the identical 100-pin TQFP package and pinout, they share the same PCB land pattern and footprint. A board designed for one can accept the other without layout changes.
Which applications are suitable for the 70V27L20PFGI and 70V27L20PF8?
These dual-port SRAMs are typically used in applications requiring simultaneous access to shared memory, such as communications buffers, multiprocessor systems, DSP interfaces, and real-time data acquisition. Their 20 ns access time and 3.3V operation suit high-speed embedded designs.