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Renesas IDT71016S12PHGI
- Part No.:
- IDT71016S12PHGI
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71016S12PHGI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:2,941
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Product details
Overview
IDT71016S12PHGI from Integrated Device Technology is a 64K × 16-bit (1 Mbit) high-speed CMOS static RAM with 12 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, embedded instrumentation, and real-time data acquisition systems requiring deterministic asynchronous memory access.
For engineers reviewing the IDT71016S12PHGI datasheet, IDT71016S12PHGI pinout, IDT71016S12PHGI application, or IDT71016S12PHGI equivalent, key selection criteria include verified 12 ns commercial/industrial timing compliance, SOJ-44 package mechanical compatibility, bidirectional TTL-level I/O drive capability, and low-standby-current behavior under chip deselect.
Technical Context
The IDT71016S12PHGI implements fully static asynchronous architecture with no clocks or refresh required. Its address decoding uses row/column architecture across a 64K × 16 memory array, supporting independent high-byte (I/O8–I/O15) and low-byte (I/O0–I/O7) access via dedicated BHE and BLE control inputs.
Timing is governed by three distinct write control modes - WE-controlled, CS-controlled, and byte-enable-controlled - each with validated setup/hold and pulse-width requirements. Output enable (OE) provides sub-7 ns output valid delay and 6 ns high-Z transition, enabling tight bus turnaround in shared-memory multiprocessor designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 16-bit (1,048,576 bits), enabling full-word parallel access without interleaving |
| Access Time (tAA) | 12 ns max at VCC = 4.5–5.5 V, defining minimum address-to-data-valid latency in read cycles |
| Supply Voltage | 5.0 V ±10%, compatible with legacy 5 V TTL logic families without level translation |
| I/O Interface | Bidirectional TTL-compatible inputs/outputs, supporting direct connection to 74LS/74ALS bus drivers |
| Byte Enable Control | Separate BHE and BLE pins allow independent 8-bit writes to upper or lower data byte lanes |
| Standby Current (ISB1) | 10 µA max at CMOS-level chip deselect (CS > VHC), enabling ultra-low-power sleep states |
| Operating Temperature | –40°C to +85°C industrial range, qualified for use in uncontrolled ambient environments |
Pinout & Package
Package: 44-pin Plastic SOJ (SO44-1), JEDEC-standard 400-mil width, lead pitch 0.05 inch, body height 0.145 inch - suitable for wave-soldered industrial PCBs with thermal mass constraints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus accepting full 64K linear addressing without external demultiplexing |
| CS | Chip Select | Active-low global enable; deassertion places all outputs in high-impedance state and reduces ICC to ISB1 |
| WE | Write Enable | Active-low signal initiating write cycle; combined with CS and BHE/BLE determines write mode |
| OE | Output Enable | Active-low control for output buffers only; allows read operations while preserving write timing independence |
| BHE | High-Byte Enable | Active-low control enabling I/O8–I/O15 during read/write; supports 8-bit peripheral interfacing |
| BLE | Low-Byte Enable | Active-low control enabling I/O0–I/O7 during read/write; enables byte-granular memory updates |
| I/O0–I/O15 | Bidirectional Data Bus | 16 TTL-compatible I/O lines with 8 mA sink / 4 mA source drive strength per pin |
| VCC | Power Supply | +5.0 V ±10% main supply; decoupling required within 0.5 inch of pin per JEDEC SOJ layout guidelines |
| VSS | Ground | Signal and power ground reference; two dedicated pins reduce ground bounce in high-speed access |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Static Operation | No clock, no refresh, no wait states - simplifies timing-critical control firmware and eliminates DRAM controller overhead |
| Dual Byte Enable Architecture | Independent BHE/BLE control permits mixed 8-bit/16-bit bus protocols without external gating logic |
| TTL-Compatible I/O | Direct interface to legacy 74-series logic and microprocessor data buses without level-shifting components |
| Low-Standby Power Mode | 10 µA ISB1 current at CMOS-level chip deselect enables battery-backed operation in maintenance-free field units |
| Industrial Temperature Qualification | Guaranteed 12 ns timing across –40°C to +85°C, supporting deployment in motor drives and outdoor telemetry enclosures |
Applications
| Industrial PLC Memory Buffer | Legacy Test Equipment Data Capture |
|---|---|
Use Scenario: Real-time I/O scan buffering in programmable logic controllers where deterministic memory access avoids jitter-induced scan cycle variation. IC Role / Device Role / Timing Role: Asynchronous SRAM providing zero-wait-state read/write for ladder logic execution and analog input FIFO staging. Use Value: 12 ns tAA ensures consistent 100 kHz scan loop timing even under worst-case temperature and voltage conditions. | Use Scenario: High-fidelity waveform capture buffer in automated test equipment sampling at 10 MS/s with post-processing offload to host CPU. IC Role / Device Role / Timing Role: Dual-port-capable memory acting as ping-pong buffer between ADC interface and PCI bus master DMA engine. Use Value: Independent BHE/BLE enables simultaneous 8-bit ADC data writes and 16-bit host reads without bus contention or arbitration logic. |
| Avionics Data Logger | Medical Imaging Front-End Controller |
Use Scenario: Non-volatile flight parameter logging in certified avionics units where SRAM retains data during brief power interruptions. IC Role / Device Role / Timing Role: Battery-backed memory storing critical sensor timestamps and status flags during brown-out recovery sequences. Use Value: 10 µA ISB1 current extends backup battery life beyond 10 years in sealed airborne enclosures. | Use Scenario: Real-time pixel pipeline buffer in ultrasound beamformer modules requiring glitch-free data handoff between FPGA and DSP cores. IC Role / Device Role / Timing Role: Synchronous-to-asynchronous bridge memory absorbing burst-mode pixel writes and servicing steady-rate processing reads. Use Value: Sub-7 ns tOE and 6 ns tOHZ support 20 MHz pixel clock domain crossing with <1 ns skew tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed asynchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-45ZXC | 45 ns access time, 3.3 V supply, TSOP-44 package, no BHE/BLE pins | Requires level translation for 5 V systems; lacks byte-select granularity for mixed-bus architectures | Choose only if migrating to 3.3 V design and accepting slower timing margin |
| AS6C1008-12PIN | 12 ns access, 5 V supply, SOJ-44, but no separate BHE/BLE - uses single OE for full 16-bit control | Cannot perform independent high/low byte writes; requires external logic for byte masking | Select when byte enable functionality is unused and cost reduction is primary driver |
Compared with CY62167EV30LL-45ZXC and AS6C1008-12PIN, the IDT71016S12PHGI uniquely delivers 12 ns timing at 5 V with native dual-byte control - eliminating glue logic and preserving legacy board layouts in industrial retrofits.
Availability
IDT71016S12PHGI is available at Aetrix Electronics and suitable for industrial PLCs, avionics data loggers, medical imaging front-ends, and legacy test equipment requiring stable component supply across extended product lifecycles.
Supply support for IDT71016S12PHGI 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 fabless semiconductor company specializing in timing, memory interface, RF, and power management ICs before its acquisition by Renesas in 2019.
The IDT71016S12PHGI belongs to IDT's legacy high-speed CMOS SRAM product line, designed specifically for deterministic, low-latency memory interfacing in industrial control, instrumentation, and aerospace systems where refresh-free operation and 5 V compatibility were mandatory.
FAQ
What is the maximum operating frequency supported by the IDT71016S12PHGI?
The IDT71016S12PHGI does not operate on a clock; it is an asynchronous SRAM. Its maximum effective throughput is determined by its 12 ns read cycle time (tRC), yielding up to 83.3 MHz sustained random-access bandwidth. This assumes full address and control setup/hold timing compliance per AC Electrical Characteristics Table 10 in the datasheet. The IDT71016S12PHGI achieves this performance without clocks or refresh cycles.
Does the IDT71016S12PHGI support true dual-port operation?
No, the IDT71016S12PHGI is a single-port asynchronous SRAM with one shared bidirectional data bus (I/O0–I/O15). It does not support simultaneous independent read and write operations like true dual-port SRAMs. However, its fast OE-controlled output disable (6 ns tOHZ) and WE-controlled write enable (1 ns tOW) allow tightly sequenced read-then-write or write-then-read operations on the same port, which the IDT71016S12PHGI implements using standard TTL-level control signals.
Can the IDT71016S12PHGI be used with a 3.3 V microcontroller system?
The IDT71016S12PHGI requires a 5.0 V ±10% supply and has TTL-compatible I/O thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V), making direct interface with 3.3 V logic unsafe without level translation. Driving IDT71016S12PHGI inputs from 3.3 V outputs risks violating VIH min, and connecting IDT71016S12PHGI outputs to 3.3 V inputs may exceed absolute maximum input voltage ratings. A level-shifter or buffer IC is required for interoperability, unlike the IDT71016S12PHGI's native 5 V system integration.
What is the meaning of 'PHGI' in the part number IDT71016S12PHGI?
In IDT71016S12PHGI, 'PH' denotes the 400-mil Plastic SOJ (SO44-1) package, 'G' indicates RoHS-compliant (lead-free) construction, and 'I' specifies industrial temperature range (–40°C to +85°C). The 'S12' suffix confirms 12 ns speed grade. Thus, IDT71016S12PHGI is the industrial-grade, RoHS-compliant, 12 ns, SOJ-packaged variant of the IDT71016 SRAM family.
Is the IDT71016S12PHGI still recommended for new designs?
No - IDT discontinued the IDT71016S12PHGI and marked it "Not recommended for new designs" in October 2000 (per Datasheet Document History). While Aetrix Electronics maintains legacy supply for ongoing production and repair, engineers designing new systems should evaluate modern low-power SRAM alternatives with extended lifecycle support. The IDT71016S12PHGI remains fully functional and qualified for existing industrial deployments.
IDT71016S12PHGI 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:
- 12ns
- Access Time:
- 12 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
IDT71016S12PHGI FAQ
1.How can I place an order for IDT71016S12PHGI through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71016S12PHGI 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 IDT71016S12PHGI reliable?
The price and inventory of IDT71016S12PHGI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71016S12PHGI is usually 5 days.
3.What payment methods are accepted for IDT71016S12PHGI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71016S12PHGI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71016S12PHGI?
IDT71016S12PHGI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71016S12PHGI 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 IDT71016S12PHGI?
For technical support, including IDT71016S12PHGI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71016S12PHGI requirements.
6.How does Aetrix verify that IDT71016S12PHGI is sourced from the original manufacturer or authorized distributors?
All IDT71016S12PHGI 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 IDT71016S12PHGI meets industry standards.
7.What is the process for return or replacement of IDT71016S12PHGI?
All IDT71016S12PHGI units undergo pre-shipment inspection (PSI). If there is an issue with IDT71016S12PHGI, 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 IDT71016S12PHGI part is unused and in its original packaging.
Return procedure for IDT71016S12PHGI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71016S12PHGI Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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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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