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Renesas IDT71016S20PHI
- Part No.:
- IDT71016S20PHI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71016S20PHI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,144
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Product details
Overview
IDT71016S20PHI from Integrated Device Technology is a 64K × 16-bit (1 Mbit) high-speed CMOS static RAM with 20 ns access time, TTL-compatible I/O, single 5 V supply operation, and dual byte enable (BHE/BLE) for flexible 8-bit or 16-bit data bus interfacing - used in legacy industrial controllers and embedded systems requiring deterministic, no-refresh memory access.
For engineers reviewing the IDT71016S20PHI datasheet, IDT71016S20PHI pinout, IDT71016S20PHI application, or IDT71016S20PHI equivalent, key selection considerations include its 20 ns read cycle time, SOJ-44 package compatibility, 5 V-only operation, and byte-selectable write capability in real-time control subsystems.
Technical Context
The IDT71016S20PHI implements fully static asynchronous architecture with no clocks or refresh required. Its address decoding, sense amplifiers, and bidirectional I/O buffers are all CMOS-based and designed for direct TTL-level interfacing without level-shifting.
It supports three distinct write control modes - WE-controlled, CS-controlled, and byte-enable-controlled - with guaranteed timing parameters including tAA = 20 ns, tRC = 20 ns, and tOE = 10 ns under commercial/industrial temperature ranges (0°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 16-bit (1,048,576 bits), enabling full-word parallel access without banking logic |
| Access Time (tAA) | 20 ns max - defines minimum address-to-data-valid delay for synchronous CPU interface timing |
| Supply Voltage | 5.0 V ±10% - requires only one regulated rail; incompatible with 3.3 V or mixed-voltage systems |
| I/O Interface | TTL-compatible inputs and outputs - eliminates need for external bus transceivers in 5 V microprocessor designs |
| Byte Enable Control | Separate BHE and BLE pins - allows independent 8-bit writes to upper/lower data bytes without masking logic |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including PLC backplanes and motor drives |
| Standby Current (ISB1) | 10 µA max at CMOS-level chip deselect - enables ultra-low-power sleep mode in battery-backed systems |
Pinout & Package
Package: 44-pin Plastic SOJ (SO44-1), JEDEC-standard 400-mil width, lead pitch 0.05 inch, surface-mount compatible with wave or reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus accepting full 64K row/column decode; no internal latching |
| CS | Chip Select | Active-low global enable; device enters standby (high-Z I/O, low ICC) when high |
| WE | Write Enable | Active-low write strobe; controls write cycle initiation and data capture timing |
| OE | Output Enable | Active-low output gate; enables read data on I/O pins independently of CS/WE state |
| BHE / BLE | Byte Enable | Independent active-low enables for upper (I/O8–I/O15) and lower (I/O0–I/O7) data bytes |
| I/O0–I/O15 | Bidirectional Data | True bidirectional TTL-compatible bus pins; direction controlled by WE/OE/BHE/BLE logic states |
| VCC / VSS | Power / Ground | Single 5 V supply; decoupling required per JEDEC SOJ layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Static Operation | No clock, no refresh, no wait states - simplifies timing-critical microcontroller and DSP memory interfaces |
| Byte-Selectable Write | Independent BHE/BLE control enables partial-word writes without external byte-mask logic or glue ICs |
| Low-Power Standby Mode | ISB1 ≤ 10 µA at CMOS-level CS deassertion - critical for battery-buffered SRAM retention in power-loss scenarios |
| TTL-Compatible I/O | Direct connection to 5 V microprocessors (e.g., Intel 80C188, Motorola 68EC000) without level translators |
| Industrial Temperature Range | –40°C to +85°C operation validated across full voltage and timing specs - suitable for uncooled industrial enclosures |
Applications
| Industrial PLC Memory Buffer | DSP Data Scratchpad |
|---|---|
Use Scenario: Real-time I/O data buffering in programmable logic controller backplanes where deterministic latency and no-refresh operation are mandatory. IC Role / Device Role / Timing Role: Primary 16-bit data memory buffer interfaced directly to 5 V CPU bus with byte-write granularity for register-mapped I/O updates. Use Value: 20 ns tAA ensures sub-cycle memory access for 40 MHz CPU buses; BHE/BLE eliminates need for external byte-enable logic. |
Use Scenario: High-speed coefficient and sample storage in fixed-point digital signal processors used in motor control and audio processing. IC Role / Device Role / Timing Role: Low-latency scratchpad memory supporting burst reads/writes during FFT or FIR filter execution cycles. Use Value: Asynchronous operation avoids pipeline stalls; TTL-compatible I/O reduces board area and BOM count versus level-shifted alternatives. |
| Legacy Medical Imaging Frame Store | Avionics Display Controller Buffer |
Use Scenario: Intermediate frame buffering in analog-to-digital acquisition systems for ultrasound and X-ray imaging equipment. IC Role / Device Role / Timing Role: Dual-port-like behavior achieved via OE/WE sequencing to support simultaneous acquisition and display refresh streams. Use Value: tOHZ ≤ 8 ns and tOLZ = 0 ns enable clean bus turnaround between capture and display engines without added wait states. |
Use Scenario: Graphics buffer in certified avionics display units requiring long-lifecycle, radiation-tolerant (non-DRAM), and qualification-ready components. IC Role / Device Role / Timing Role: Non-volatile-retained memory interface (with external battery backup) for HUD and MFD pixel data storage. Use Value: Industrial-grade temperature range and 10 µA ISB1 support >10-year backup runtime with coin-cell batteries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-20ZSXIT | 3.3 V supply, 20 ns access, TSOP-44; no BHE/BLE - uses UB/LB instead; higher ICC (25 mA vs. 170 mA dynamic) | Requires level translation in 5 V systems; not drop-in for IDT71016S20PHI due to voltage and pinout mismatch | Select only if migrating to 3.3 V architecture and redesigning power delivery and bus interface |
| AS6C1008-20ZIN | 5 V supply, 20 ns, SOJ-44; lacks separate BHE/BLE - uses single BYTE pin; ISB = 2 µA (lower than IDT71016S20PHI's 10 µA) | Supports only full-word or half-word writes via BYTE pin; no independent upper/lower byte control | Acceptable for simpler 8/16-bit systems where byte-granular writes are unnecessary |
Compared with CY62167EV30LL-20ZSXIT and AS6C1008-20ZIN, the IDT71016S20PHI uniquely delivers true independent byte enable control in a 5 V SOJ-44 package with verified industrial temperature performance - making it irreplaceable in legacy 5 V designs requiring precise 8-bit write isolation.
Availability
IDT71016S20PHI is available at Aetrix Electronics and suitable for industrial PLCs, legacy medical imaging systems, avionics display controllers, and DSP-based motor drives requiring stable component supply and long-term lifecycle continuity.
Supply support for IDT71016S20PHI includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Integrated Device Technology (IDT) was a U.S.-based semiconductor company specializing in timing, memory, interface, and RF solutions before its acquisition by Renesas in 2019. It pioneered high-performance CMOS SRAM architectures for real-time systems.
The IDT71016 product line was engineered for deterministic, no-refresh memory interfacing in 5 V industrial and embedded computing - emphasizing timing precision, byte-level flexibility, and robustness across extended temperature ranges.
FAQ
What is the operating voltage range for the IDT71016S20PHI?
The IDT71016S20PHI operates strictly at 5.0 V ±10% (4.5 V to 5.5 V). It is not 3.3 V tolerant, and applying voltages outside this range may cause permanent damage. All DC and AC specifications - including tAA = 20 ns and ISB1 = 10 µA - are guaranteed only within this supply window. The IDT71016S20PHI does not support dual-supply or mixed-voltage operation.
Does the IDT71016S20PHI require a clock or refresh signal?
No, the IDT71016S20PHI uses fully static CMOS circuitry and requires neither a clock nor periodic refresh. Data retention is indefinite as long as VCC remains within specification and the device is not written to. This eliminates timing overhead in microcontroller and FPGA-based systems, and the IDT71016S20PHI maintains state during CPU wait states or halted execution.
How does byte enable work on the IDT71016S20PHI?
The IDT71016S20PHI provides two independent active-low byte enable pins: BHE controls I/O8–I/O15 (upper byte), and BLE controls I/O0–I/O7 (lower byte). When only one is asserted low during a write cycle, only that byte is updated; both must be low for full 16-bit writes. This functionality is electrically verified in the truth table and timing diagrams of the IDT71016S20PHI datasheet.
What package type is used for the IDT71016S20PHI?
The IDT71016S20PHI is packaged in a 44-pin Plastic SOJ (Small Outline J-lead), JEDEC standard SO44-1, 400-mil body width. Pin 1 is marked by a notch or dot; leads are gull-wing shaped with 0.05-inch pitch. This package is compatible with standard SOJ reflow profiles and is distinct from the TSOP variant (IDT71016S20PHI does not use TSOP).
Is the IDT71016S20PHI suitable for industrial temperature applications?
Yes, the IDT71016S20PHI is rated for –40°C to +85°C operation, with all AC and DC parameters - including tRC = 20 ns, ICC = 170 mA, and ISB = 45 mA - fully specified across this range. Its qualification aligns with industrial PLC, motor drive, and instrumentation requirements, and the IDT71016S20PHI was explicitly designated for industrial use in the official ordering information.
IDT71016S20PHI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 1Mbit
- Memory Organization:
- 64K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20ns
- Access Time:
- 20 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
IDT71016S20PHI FAQ
1.How can I place an order for IDT71016S20PHI through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71016S20PHI on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for IDT71016S20PHI reliable?
The price and inventory of IDT71016S20PHI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71016S20PHI is usually 5 days.
3.What payment methods are accepted for IDT71016S20PHI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71016S20PHI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71016S20PHI?
IDT71016S20PHI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71016S20PHI order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for IDT71016S20PHI?
For technical support, including IDT71016S20PHI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71016S20PHI requirements.
6.How does Aetrix verify that IDT71016S20PHI is sourced from the original manufacturer or authorized distributors?
All IDT71016S20PHI products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IDT71016S20PHI meets industry standards.
7.What is the process for return or replacement of IDT71016S20PHI?
All IDT71016S20PHI units undergo pre-shipment inspection (PSI). If there is an issue with IDT71016S20PHI, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The IDT71016S20PHI part is unused and in its original packaging.
Return procedure for IDT71016S20PHI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71016S20PHI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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