My Inquiry
My Account
Renesas IDT71016S12PHGI8
- Part No.:
- IDT71016S12PHGI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
IDT71016S12PHGI8.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:3,993
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IDT71016S12PHGI8 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 IDT71016S12PHGI8 datasheet, IDT71016S12PHGI8 pinout, IDT71016S12PHGI8 application, or IDT71016S12PHGI8 equivalent, key selection considerations include its 44-pin SOJ package, 12 ns read cycle time, TTL-level input thresholds, low-Z output enable timing (7 ns), and industrial temperature range (–40°C to +85°C) support.
Technical Context
The IDT71016S12PHGI8 implements fully static asynchronous circuitry with no clocks or refresh required. Its architecture features independent byte enables (BHE/BLE), separate chip select (CS) and output enable (OE) controls, and bidirectional TTL-compatible I/O buffers driving 16 data lines directly.
Timing is governed by three distinct control paths: CS-controlled, OE-controlled, and byte-enable-controlled read/write cycles. The device supports word (16-bit), high-byte (I/O8–I/O15), and low-byte (I/O0–I/O7) operations with guaranteed tAA ≤ 12 ns, tOE ≤ 7 ns, and tRC = 12 ns under industrial conditions (VCC = 4.5–5.5 V, TA = –40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 64K × 16-bit (1,048,576 bits); supports full-word or byte-selectable access without external logic |
| Access Time (tAA) | ≤12 ns at VCC = 4.5–5.5 V, TA = –40°C to +85°C; enables tight timing margins in fast microprocessor buses |
| Read Cycle Time (tRC) | 12 ns; defines minimum consecutive read interval for sustained throughput in burst-free systems |
| Output Enable Delay (tOE) | ≤7 ns; allows rapid data gating in shared-bus architectures with minimal bus turnaround overhead |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V); compatible with legacy 5 V TTL and LVTTL system rails |
| Operating Temperature | –40°C to +85°C; qualified for industrial-grade reliability in uncontrolled ambient environments |
| Package | 44-pin Plastic SOJ (SO44-1); JEDEC-standard footprint with 0.050" lead pitch, suitable for wave-soldered industrial PCBs |
Pinout & Package
44-pin Plastic SOJ (SO44-1) package per JEDEC MS-025, 0.400" wide body, gull-wing leads, 0.050" pitch. Pin 1 marked by notch or dot; top view shown in datasheet Figure 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A15 | Address Inputs | 16-bit address bus interface; fully decoded internally to access all 64K words |
| CS | Chip Select | Active-low global enable; places device in standby (high-Z I/O) when deasserted |
| OE | Output Enable | Active-low read strobe; controls output drivers independently of CS for bus sharing |
| WE | Write Enable | Active-low write strobe; initiates write cycle when CS and byte enables are active |
| BHE, BLE | Byte Enable Inputs | Active-low controls for high-byte (I/O8–I/O15) and low-byte (I/O0–I/O7) writes/reads |
| I/O0–I/O15 | Bidirectional Data | TTL-compatible I/O; drives/receives 16-bit data with 8 mA sink / 4 mA source capability |
| VCC | Power Supply | +5 V ±10% main supply; powers core logic and I/O buffers |
| VSS | Ground | Reference ground for all inputs, outputs, and internal circuitry |
| NC | No Connect | Pins 2, 42, 44 are unconnected; must be left floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Static Operation | No clock or refresh circuitry required - simplifies timing design and eliminates refresh overhead in microcontroller-based systems |
| Dual Byte Enable (BHE/BLE) | Enables independent 8-bit access to upper/lower data bytes without external demux logic or bus transceivers |
| TTL-Compatible I/O | Direct interface to 5 V TTL, LVTTL, and older microprocessor buses (e.g., 80C188, 68000) without level-shifting components |
| Low-Power Standby | ISB1 = 10 µA max at CMOS-level CS disable (VCC = 5.5 V, f = 0); ideal for battery-backed or power-cycled systems |
| Industrial Temperature Range | Specified and tested over –40°C to +85°C; validated for use in motor drives, PLCs, and outdoor instrumentation |
Applications
| Industrial PLC Memory Expansion | Legacy Microprocessor Data Buffering |
|---|---|
Use Scenario: Adding local SRAM to a programmable logic controller's I/O processor board for temporary data logging and register shadowing. IC Role / Device Role / Timing Role: Asynchronous 16-bit data store accessed via 80C186 address/data bus with CS and OE controlled by PLD-generated strobes. Use Value: 12 ns tAA ensures compatibility with 20 MHz CPU bus timing; BHE/BLE allows selective update of status registers without disturbing command fields. | Use Scenario: Serving as a dual-port buffer between an 8-bit microcontroller and a 16-bit ADC/DAC subsystem in test equipment. IC Role / Device Role / Timing Role: Bidirectional data latch holding conversion results or control words; accessed using discrete address decoding and WE/OE handshaking. Use Value: 7 ns tOE enables sub-100 ns bus turnaround; TTL-compatible I/O eliminates level translators in mixed-voltage signal chains. |
| Real-Time Data Acquisition Buffer | Embedded Instrumentation Scratchpad |
Use Scenario: Capturing high-speed analog samples in a digital oscilloscope front-end before DMA transfer to main memory. IC Role / Device Role / Timing Role: High-speed circular buffer written by dedicated logic and read by host processor during idle cycles. Use Value: 12 ns tRC supports sustained 83.3 MHz read rate; low-Z output drivers drive long traces on multi-layer instrument PCBs reliably. | Use Scenario: Providing non-refreshed scratchpad memory for firmware variables and calibration tables in medical sensor modules. IC Role / Device Role / Timing Role: Static storage for critical runtime parameters; accessed only during initialization and periodic recalibration routines. Use Value: ISB1 ≤ 10 µA enables >10-year battery backup life; industrial temp rating ensures stability across clinical operating environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed parallel SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-45ZSXI | 512K × 16-bit, 45 ns access, 3.3 V core with 5 V tolerant I/O, TSOP-44 | Higher density but slower speed; requires voltage translation for pure 5 V systems | Select only if migrating to 3.3 V domains with backward-compatible I/O and need >1 Mbit capacity |
| AS6C1008-12PIN | 128K × 8-bit, 12 ns access, 5 V-only, 32-pin SOJ | Narrower 8-bit bus; different pinout and missing BHE/BLE - requires PCB redesign | Consider only for cost-sensitive 8-bit bus upgrades where byte-select flexibility is not required |
Compared with CY62167EV30LL-45ZSXI and AS6C1008-12PIN, the IDT71016S12PHGI8 uniquely delivers 12 ns 16-bit parallel access in a 5 V-native, byte-enabling SOJ package - making it the sole drop-in replacement for legacy 5 V industrial designs requiring deterministic timing and minimal layout change.
Availability
IDT71016S12PHGI8 is available at Aetrix Electronics and suitable for industrial PLCs, legacy test equipment, real-time data loggers, and embedded instrumentation requiring stable component supply across extended product lifecycles.
Supply support for IDT71016S12PHGI8 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, Inc. (IDT) was a U.S.-based semiconductor company specializing in timing, memory interface, RF, and high-performance interconnect solutions before its acquisition by Renesas Electronics in 2019.
The IDT71016 belongs to IDT's legacy parallel SRAM product line, designed specifically for 5 V microprocessor and microcontroller systems requiring fast, reliable, and pin-compatible asynchronous memory expansion in industrial and commercial environments.
FAQ
What is the maximum operating frequency supported by the IDT71016S12PHGI8?
The IDT71016S12PHGI8 does not operate on a clock signal - it is an asynchronous static RAM. Its performance is defined by timing parameters, not frequency. With tRC = 12 ns, it supports up to 83.3 million read cycles per second in continuous operation, assuming ideal bus conditions and no address setup/hold constraints.
Does the IDT71016S12PHGI8 require external refresh circuitry?
No. The IDT71016S12PHGI8 uses fully static CMOS memory cells and requires no refresh cycles or clocks. It retains data indefinitely as long as VCC remains within specification (4.5–5.5 V) and ambient temperature stays within –40°C to +85°C - a key advantage over DRAM in deterministic embedded systems.
Can the IDT71016S12PHGI8 be used with a 3.3 V microcontroller interface?
Not directly. The IDT71016S12PHGI8 is a 5 V-only device with TTL-compatible input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and 5 V output swing. Interfacing with a 3.3 V controller requires level-shifting circuitry on all address, control, and data lines to prevent damage and ensure valid logic levels.
What is the meaning of the 'G' suffix in IDT71016S12PHGI8?
The 'G' in IDT71016S12PHGI8 indicates compliance with RoHS Directive 2011/65/EU and restriction of hazardous substances (e.g., lead, cadmium, mercury). It confirms the device is lead-free and halogen-free, meeting environmental requirements for industrial and medical electronics sold in EU and global markets.
Is the IDT71016S12PHGI8 still recommended for new designs?
No - IDT discontinued the IDT71016 family in 2008 and marked it "Not recommended for new designs" in earlier revisions. However, Aetrix Electronics maintains active inventory and supply chain support for legacy industrial programs requiring exact form-fit-function replacement and long-term availability assurance.
IDT71016S12PHGI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
IDT71016S12PHGI8 FAQ
1.How can I place an order for IDT71016S12PHGI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDT71016S12PHGI8 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 IDT71016S12PHGI8 reliable?
The price and inventory of IDT71016S12PHGI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDT71016S12PHGI8 is usually 5 days.
3.What payment methods are accepted for IDT71016S12PHGI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDT71016S12PHGI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDT71016S12PHGI8?
IDT71016S12PHGI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDT71016S12PHGI8 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 IDT71016S12PHGI8?
For technical support, including IDT71016S12PHGI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDT71016S12PHGI8 requirements.
6.How does Aetrix verify that IDT71016S12PHGI8 is sourced from the original manufacturer or authorized distributors?
All IDT71016S12PHGI8 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 IDT71016S12PHGI8 meets industry standards.
7.What is the process for return or replacement of IDT71016S12PHGI8?
All IDT71016S12PHGI8 units undergo pre-shipment inspection (PSI). If there is an issue with IDT71016S12PHGI8, 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 IDT71016S12PHGI8 part is unused and in its original packaging.
Return procedure for IDT71016S12PHGI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IDT71016S12PHGI8 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
