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Renesas 7164S20TPG
- Part No.:
- 7164S20TPG
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 28-DIP (0.300", 7.62mm)
- Datasheet:
-
7164S20TPG.pdf
- Description:
- IC SRAM 64KBIT PARALLEL 28DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,503
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Product details
Overview
7164S20TPG from Renesas Electronics is a 64K (8K × 8-bit) high-speed CMOS static RAM with 20 ns maximum address access time, TTL-compatible I/O, single 5V supply operation, and three-state outputs. It features automatic low-power standby mode triggered by chip select logic and is designed for embedded control, instrumentation, and military-grade data buffering applications requiring deterministic asynchronous memory access.
For engineers reviewing the 7164S20TPG datasheet, 7164S20TPG pinout, 7164S20TPG application, or 7164S20TPG equivalent, this page delivers verified electrical specs, industrial-temperature package validation (PTG28 300-mil plastic DIP), truth table behavior, DC/AC timing limits, and real-world design implications for power-down sequencing and bus contention avoidance.
Technical Context
The 7164S20TPG implements fully static asynchronous architecture-no clocks or refresh required-with dual chip select inputs (CS1 active-low, CS2 active-high) enabling hierarchical memory mapping and selective power-down. Its standby current drops to 2 mA max at 20 ns speed, and it supports battery backup data retention only in L-version variants-not applicable to this S-version part.
Input and output logic levels are strictly TTL-compatible (VIH ≥ 2.2 V, VIL ≤ 0.8 V), and all timing parameters-including tAA (20 ns), tRC (20 ns), tOE (8 ns), and tWHZ (5 ns)-are guaranteed across commercial temperature range (0°C to +70°C). The device uses standard CMOS process technology and is not rated for industrial or military temperature grades in this specific orderable variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 8K × 8-bit (65,536 bits), byte-wide parallel interface |
| Access Time (tAA) | 20 ns max - defines minimum address-to-valid-data delay in read cycles |
| Supply Voltage | 5.0 V ± 10% - single-rail operation simplifies power design; no auxiliary supplies needed |
| I/O Compatibility | TTL-compatible inputs and outputs - interoperable with legacy 74LS/ALS logic without level shifters |
| Standby Current (ISB) | 2 mA max at VCC = 5.5 V - achieved when CS1 HIGH or CS2 LOW; enables low-quiescent power in idle states |
| Operating Temperature | 0°C to +70°C - commercial grade only; PTG28 package validated for this range per ordering info |
| Output Drive | Three-state outputs with VOH ≥ 2.4 V (IOH = −4 mA), VOL ≤ 0.4 V (IOL = 8 mA) - ensures robust bus driving under load |
Pinout & Package
7164S20TPG is supplied in a 28-pin 300-mil plastic DIP (PTG28), with pin 1 located at the left end of the top row (dot-marked). Pin functions follow industry-standard SRAM layout for byte-wide addressing and control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A12 | Address Inputs | 13-bit address bus; selects one of 8,192 memory locations (2¹³ = 8K) |
| I/O0–I/O7 | Bidirectional Data Bus | 8-bit parallel data path; high-impedance when disabled by CS/OE/WE logic |
| CS1 | Chip Select 1 (active-low) | Primary enable; device enters standby if HIGH, regardless of CS2 state |
| CS2 | Chip Select 2 (active-high) | Secondary enable; powers down device if LOW, overriding CS1 |
| WE | Write Enable (active-low) | Controls write cycle initiation; must be LOW during valid CS1/CS2 window |
| OE | Output Enable (active-low) | Enables output drivers; HIGH forces I/O pins into high-impedance state |
| VCC | Power Supply | +5 V supply pin; decoupling capacitor required near pin for noise immunity |
| GND | Ground Reference | Signal and power ground return; must be low-inductance connection |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Static Operation | No clock or refresh circuitry required - eliminates timing constraints from system clock domain |
| Dual Chip Select Architecture | CS1/CS2 logic allows hierarchical memory banking and selective power gating without external logic |
| TTL-Level Interface | Direct compatibility with 74LS/ALS families reduces BOM count and board space vs. level-shifting solutions |
| Three-State Output Control | Independent OE and CS-driven tri-state enables clean bus sharing in multi-device systems |
| Low-Power Standby Mode | ISB ≤ 2 mA at max VCC - cuts dynamic power by >95% during idle periods without losing data |
Applications
| Industrial Data Acquisition | Military Avionics Buffering |
|---|---|
Use Scenario: High-reliability analog-to-digital sampling systems capturing sensor data at burst rates up to 50 kSPS. IC Role / Device Role / Timing Role: Byte-wide temporary storage for ADC output words before DMA transfer to microcontroller. Use Value: 20 ns tAA ensures zero-cycle wait states during back-to-back reads; TTL compatibility avoids signal integrity issues on long PCB traces. |
Use Scenario: Mission-critical flight control subsystems requiring non-refreshed memory with proven radiation tolerance. IC Role / Device Role / Timing Role: Dedicated scratchpad memory for real-time control algorithms running on MIL-STD-1553 bus controllers. Use Value: Dual CS logic enables fail-safe isolation from other memory banks; commercial-grade 7164S20TPG used where full MIL-spec isn't mandated but reliability is critical. |
| Legacy Industrial PLC Modules | Test Equipment Pattern Memory |
Use Scenario: Retrofitting aging programmable logic controller I/O modules with drop-in memory upgrades. IC Role / Device Role / Timing Role: Replacement for obsolete 2764 EPROMs in firmware boot loaders and configuration tables. Use Value: Pin-compatible with many 28-pin DIP sockets; 5V-only supply eliminates need for UV-erasable programming infrastructure. |
Use Scenario: Automated test equipment storing stimulus/response vectors for semiconductor wafer probing. IC Role / Device Role / Timing Role: High-speed pattern buffer accessed by FPGA-based sequencers generating precise timing waveforms. Use Value: 20 ns tRC supports sustained 50 MHz read/write bursts; three-state outputs prevent bus contention during vector switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY62167EV30LL-45ZSXIT | 16M-bit (2M × 8) density, 45 ns access, 3.3 V core, industrial temp (−40°C to +85°C) | Higher density and lower voltage, but requires level translation for 5V TTL systems | Select when upgrading capacity or migrating to 3.3 V systems; not pin-compatible with 7164S20TPG |
| AS6C1008-55ZIN | 1M-bit (128K × 8), 55 ns access, 5 V supply, industrial temp, SOIC-28 package | Slower speed, larger density, different pinout (SOIC vs. DIP), no CS2 input | Choose for cost-sensitive industrial designs where 55 ns latency is acceptable and surface-mount is preferred |
Compared with CY62167EV30LL-45ZSXIT and AS6C1008-55ZIN, the 7164S20TPG offers the fastest access (20 ns) in a through-hole DIP format with native TTL signaling-making it uniquely suitable for legacy 5V systems requiring minimal redesign and deterministic timing.
Availability
7164S20TPG is available at Aetrix Electronics and suitable for industrial data acquisition, military avionics buffering, legacy PLC module retrofits, test equipment pattern memory, and embedded instrumentation requiring stable component supply and long-term obsolescence management.
Supply support for 7164S20TPG 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and infrastructure markets.
The 7164S20TPG belongs to Renesas' legacy CMOS SRAM product line, engineered for high-reliability, asynchronous, low-latency memory in 5V TTL-based embedded systems where pin compatibility and timing predictability are critical.
FAQ
What is the maximum operating temperature range supported by the 7164S20TPG?
The 7164S20TPG is specified for commercial temperature range only: 0°C to +70°C. Although other variants (e.g., 7164S20TPGI) support industrial range (−40°C to +85°C), the 7164S20TPG part number explicitly denotes commercial grade per Renesas ordering information. Derating or extended testing beyond this range is not guaranteed.
Does the 7164S20TPG support battery backup data retention?
No, the 7164S20TPG does not support battery backup data retention. That feature is exclusive to the "L" version (e.g., 7164L20TPG), which specifies 2 V data retention voltage. The "S" suffix indicates standard power consumption and no low-voltage retention capability-confirmed in the datasheet's Features section and DC Electrical Characteristics table.
Is the 7164S20TPG pin-compatible with the 2764 EPROM?
No, the 7164S20TPG is not pin-compatible with the 2764 EPROM. While both are 28-pin DIP devices, the 2764 uses different pin assignments (e.g., VPP programming voltage, no CS2, different OE/WE behavior) and requires UV erasure. The 7164S20TPG has dedicated CS1/CS2, TTL-compatible I/O, and no programming pins-requiring PCB layout changes for replacement.
What is the minimum write pulse width (tWP) for the 7164S20TPG?
The minimum write pulse width (tWP) for the 7164S20TPG is 20 ns, as specified in the AC Electrical Characteristics table for commercial-grade 20 ns speed parts. This applies when using WE-controlled write timing with CS1 LOW and CS2 HIGH. Pulse widths shorter than 20 ns risk incomplete writes and data corruption.
Can the 7164S20TPG operate reliably with a 4.5 V supply?
Yes, the 7164S20TPG is fully specified to operate at VCC = 4.5 V (minimum per DC Operating Conditions table). All key parameters-including VOL ≤ 0.4 V at IOL = 8 mA and VOH ≥ 2.4 V at IOH = −4 mA-are guaranteed across 4.5 V to 5.5 V, ensuring robust functionality even under brown-out conditions.
7164S20TPG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 28-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 64Kbit
- Memory Organization:
- 8K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 20ns
- Access Time:
- 20 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 28-PDIP
7164S20TPG FAQ
1.How can I place an order for 7164S20TPG through Aetrix?
Please submit a Request for Quotation (RFQ) for 7164S20TPG 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 7164S20TPG reliable?
The price and inventory of 7164S20TPG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7164S20TPG is usually 5 days.
3.What payment methods are accepted for 7164S20TPG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7164S20TPG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7164S20TPG?
7164S20TPG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7164S20TPG 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 7164S20TPG?
For technical support, including 7164S20TPG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7164S20TPG requirements.
6.How does Aetrix verify that 7164S20TPG is sourced from the original manufacturer or authorized distributors?
All 7164S20TPG 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 7164S20TPG meets industry standards.
7.What is the process for return or replacement of 7164S20TPG?
All 7164S20TPG units undergo pre-shipment inspection (PSI). If there is an issue with 7164S20TPG, 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 7164S20TPG part is unused and in its original packaging.
Return procedure for 7164S20TPG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
7164S20TPG Tags
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AT24C02C-XHM-T
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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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AT24C04C-SSHM-T
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AT24C08C-STUM-T
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