Part A
70V27L20PFGI
Renesas Electronics America Inc.
- Lifecycle
- Active
- Stock
- 3315 PCS
- Package
- LQFP-100
- Series
- Memória
Replacement verdict
Compatible functional replacement candidate
The 70V27L20PFGI and 70V27L20PFG are functionally equivalent dual-port SRAM devices from the same manufacturer, sharing identical memory density, organization, speed grade, and package type. The primary distinction is the operating temperature range, with the PFGI suffix denoting the industrial temperature variant. Both parts are viable functional replacement candidates, though operating environment requirements must be validated before substitution.
Memory Density and Organization
High match
Access Time and Speed Grade
High match
Package Type and Pinout
High match
Operating Temperature Range
Validation required
Parts at a glance
Part B
70V27L20PFG
Renesas Electronics America Inc.
- Lifecycle
- Active
- Stock
- 2145 PCS
- Package
- LQFP-100
- Series
- Memória
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 | 70V27L20PFG | 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 a system. |
| Memory Size | 32Kbit (2K x 16) | 32Kbit (2K x 16) | Matching capacity and organization ensures identical addressing and storage capability. |
| Access Time | 20 ns | 20 ns | Same access time means equivalent read/write speed and timing compatibility. |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | Identical voltage range allows use in the same power domain without level shifting. |
| Operating Temperature | -40°C to 85°C | 0°C to 70°C | The industrial temperature range of the PFGI version supports harsher environments, while the PFG version is limited to commercial temperatures. |
| Package / Case | 100-LQFP | 100-LQFP | Same package and footprint allow drop-in replacement on the same PCB layout. |
| Mounting Type | Surface Mount | Surface Mount | Identical mounting method ensures mechanical compatibility with the assembly process. |
| RoHS Status | RoHS Compliant | RoHS Compliant | Both meet RoHS requirements, simplifying regulatory compliance for the final product. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 70V27L20PFGI | 70V27L20PFG |
|---|---|---|
| Supplier | - | Renesas Electronics America Inc |
| Part Status | Active | Active |
| 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 | LVTTL |
| 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 is the difference between the 70V27L20PFGI and the 70V27L20PFG?
The 70V27L20PFGI and 70V27L20PFG are both 3.3V 32K x 16 dual-port static RAM devices from Renesas (formerly IDT) in a 100-pin TQFP package with a 20 ns access time. The primary difference is the "I" suffix on the 70V27L20PFGI, which designates an industrial temperature range of -40°C to +85°C, whereas the 70V27L20PFG is specified for the commercial temperature range of 0°C to +70°C.
Are the 70V27L20PFGI and 70V27L20PFG functionally interchangeable?
Yes. Both devices share the same dual-port SRAM architecture, 32K x 16 memory organization, 3.3V supply, 20 ns access time, and 100-pin TQFP pinout. They are functionally identical; the only difference is the rated operating temperature range, so the industrial-grade 70V27L20PFGI can replace the commercial-grade 70V27L20PFG in most designs, provided the application does not require operation below 0°C or above +70°C.
What is the operating temperature range of each device?
The 70V27L20PFGI is rated for the industrial temperature range of -40°C to +85°C. The 70V27L20PFG is rated for the commercial temperature range of 0°C to +70°C. These ranges are specified in the respective Renesas/IDT datasheets for the 70V27L family.
What are the key shared specifications of the 70V27L20PFGI and 70V27L20PFG?
Both devices are 3.3V dual-port SRAMs with a 32K x 16 organization (512 Kbit total), 20 ns maximum access time, 100-pin TQFP package, asynchronous operation, and independent left and right ports with full interrupt and semaphore support. These parameters are common to the 70V27L20PFG and 70V27L20PFGI and are documented in the Renesas 70V27L datasheet.
Can the 70V27L20PFG be used in an industrial-temperature application?
No. The 70V27L20PFG is only specified for the commercial temperature range of 0°C to +70°C. For applications requiring operation from -40°C to +85°C, the 70V27L20PFGI must be used instead, as it is the industrial-temperature version of the same device.
Do the 70V27L20PFGI and 70V27L20PFG have the same package and pinout?
Yes. Both devices are offered in the same 100-pin TQFP (Thin Quad Flat Pack) package with identical pin assignments. The package code "PF" in both part numbers indicates the 100-pin TQFP, and the "G" suffix indicates RoHS compliance. This means they are drop-in compatible from a mechanical and PCB layout perspective.
Are both the 70V27L20PFGI and 70V27L20PFG RoHS compliant?
Yes. The "G" suffix in both part numbers indicates that the devices are RoHS-compliant and lead-free, as defined by Renesas/IDT ordering information for the 70V27L family. Both the industrial and commercial versions share the same RoHS-compliant package and materials.
Which device should be selected for a new design?
Selection depends on the required operating temperature range. If the design must operate from -40°C to +85°C, choose the 70V27L20PFGI. If the design operates only from 0°C to +70°C, the 70V27L20PFG is sufficient. Because the two devices are otherwise identical in function, speed, and pinout, the industrial-grade 70V27L20PFGI provides broader temperature coverage at potentially higher cost.