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Renesas UPD431000AGZ-70LL-KJH-E3-A
- Part No.:
- UPD431000AGZ-70LL-KJH-E3-A
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- -
- Datasheet:
-
UPD431000AGZ-70LL-KJH-E3-A.pdf
- Description:
- SRAM 5V 1M-BIT (128K X 8)
- Quantity:
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Inventory:98,000
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Product details
Overview
UPD431000AGZ-70LL-KJH-E3-A from Renesas Electronics is a 131,072-word × 8-bit (1 Mbit) CMOS static RAM with 70 ns maximum access time, 4.5–5.5 V operating supply voltage, and 0–70 °C industrial temperature range. It features dual chip enables (/CE1, CE2), output enable (/OE), write enable (/WE), and low-voltage data retention down to 2.0 V - used in embedded control modules requiring nonvolatile SRAM backup during power interruption.
For engineers reviewing the UPD431000AGZ-70LL-KJH-E3-A datasheet, UPD431000AGZ-70LL-KJH-E3-A pinout, UPD431000AGZ-70LL-KJH-E3-A application, or UPD431000AGZ-70LL-KJH-E3-A equivalent, key selection criteria include TSOP(I) 32-pin (8×20 mm, normal bent) package compatibility, 70 ns read/write timing under 5 V operation, dual CE architecture for memory expansion, and verified data retention at 2.0 V.
Technical Context
The UPD431000AGZ-70LL-KJH-E3-A implements a full CMOS static RAM architecture with row/column decoding, sense amplifiers, and input/output switching circuitry. Its dual chip enable inputs (/CE1 active-low, CE2 active-high) support hierarchical memory mapping and seamless bank expansion without external logic.
It operates in three primary modes: read (with /CE1 low, CE2 high, /OE low, /WE high), write (with /CE1 low, CE2 high, /WE low), and standby (with /CE1 high or CE2 low). Data retention mode activates when both /CE1 ≥ VCC−0.2 V and CE2 ≥ VCC−0.2 V (or CE2 ≤ 0.2 V), enabling ultra-low-current hold at VCC ≥ 2.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory organization | 131,072 words × 8 bits (1,048,576 total bits) - supports byte-wide data bus interfacing with microcontrollers and DSPs. |
| Access time (tAA) | 70 ns max at VCC = 4.5–5.5 V - enables direct connection to 14 MHz bus systems without wait states. |
| Supply voltage | 4.5–5.5 V - compatible with standard 5 V TTL/CMOS logic families and legacy industrial power rails. |
| Data retention voltage | 2.0 V min - maintains stored data during brown-out or battery-backup scenarios without external supervision. |
| Operating temperature | 0 to 70 °C - qualified for commercial and industrial control applications, excluding automotive or extended-temp environments. |
| Standby current (ISB1) | 1–20 μA at VCC ≤ 3.6 V - enables ultra-low-power hold mode in energy-constrained embedded systems. |
| Package | 32-pin plastic TSOP(I), 8 mm × 20 mm, normal bent leads - surface-mount compatible with standard reflow profiles and IPC-7351B land patterns. |
Pinout & Package
UPD431000AGZ-70LL-KJH-E3-A is housed in a 32-pin plastic TSOP(I) package (8 mm × 20 mm, normal bent leads), compliant with JEDEC MO-153AC. Pin 1 index is marked on the top surface per Renesas package drawing S32GZ-50-KJH1-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address inputs | 17-bit address bus supporting full 131,072-word addressing; A16 is MSB for 1 Mbit capacity. |
| I/O1–I/O8 | Bi-directional data bus | 8-bit parallel interface; high-impedance during /WE high (read) or /CE1 high/CE2 low (standby). |
| /CE1 | Chip Enable 1 (active low) | Primary chip select; device enabled only when low AND CE2 is high - prevents partial selection glitches. |
| CE2 | Chip Enable 2 (active high) | Secondary enable; must be high for read/write; allows cascading with other SRAMs using shared /CE1. |
| /WE | Write Enable (active low) | Controls write cycle initiation; I/O pins enter high-impedance state when /WE is low, isolating data bus during writes. |
| /OE | Output Enable (active low) | Gates output drivers; allows read data to appear on I/O lines only when /OE is asserted low. |
| VCC | Power supply | 4.5–5.5 V nominal; decoupling capacitor (0.1 μF ceramic) required within 5 mm of pin for stable 70 ns timing. |
| GND | Ground reference | Signal and power ground; requires low-inductance connection to minimize noise coupling into sensitive sense amplifiers. |
| NC | No connection | Pin 9 is unconnected; must remain floating - no pull-up/down or routing allowed. |
Key Features
| Feature | Design Value |
|---|---|
| Dual chip enable (/CE1 + CE2) | Enables seamless memory expansion up to 2+ banks without glue logic; eliminates address decoding conflicts in multi-SRAM systems. |
| 70 ns access time at 5 V | Supports real-time data buffering in industrial PLCs and test equipment where deterministic latency < 70 ns is required for control loop integrity. |
| 2.0 V data retention | Preserves RAM contents during main power loss while backup battery or supercapacitor discharges - critical for fault logging and state recovery. |
| Lead-free (RoHS-compliant) | Meets EU RoHS Directive 2011/65/EU; solder reflow profile follows J-STD-020D for TSOP(I) packages with peak temperature ≤ 260 °C. |
| Low standby current (≤20 μA) | Reduces system-level quiescent power by >99% vs. active mode - extends battery life in portable instrumentation and remote sensors. |
Applications
| Industrial PLC Data Buffer | Medical Diagnostic Instrument Cache |
|---|---|
Use Scenario: Stores real-time sensor acquisition buffers and program stack in programmable logic controllers during cyclic scan execution. IC Role / Device Role / Timing Role: Byte-wide static RAM providing zero-wait-state data storage interfaced directly to 8-bit microcontroller data bus with /CE1/CE2 decoded from address lines. Use Value: 70 ns tAA ensures deterministic response within 10 ms PLC scan cycles; dual CE allows modular memory expansion as I/O count increases. | Use Scenario: Caches waveform data from ADC front-end in portable ultrasound or ECG units before compression and transmission. IC Role / Device Role / Timing Role: High-reliability SRAM holding transient patient signal data during power transitions between AC mains and internal Li-ion battery. Use Value: 2.0 V data retention preserves critical waveform fragments during 100 ms brown-outs; low ISB1 (<20 μA) extends battery runtime between charges. |
| Automated Test Equipment (ATE) Pattern Memory | Network Router Control Plane Buffer |
Use Scenario: Stores digital test pattern sequences executed by FPGA-based pattern generators in semiconductor ATE systems. IC Role / Device Role / Timing Role: Fast-access SRAM acting as instruction/data memory for high-speed vector execution, synchronized to 14 MHz clock domain. Use Value: 70 ns tAA matches FPGA I/O timing margins; TSOP(I) package enables dense PCB layout for multi-channel parallel test heads. | Use Scenario: Buffers MAC table entries and packet metadata in Layer 2/L3 enterprise switches during firmware updates or failover events. IC Role / Device Role / Timing Role: Nonvolatile cache maintaining forwarding state across warm reboots, backed by onboard coin-cell battery. Use Value: Dual CE architecture isolates control-plane SRAM from data-plane memory maps; 2.0 V retention prevents MAC table loss during 500 ms power switchover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61LV1024AL-70TLI | Same 128K×8 organization and 70 ns speed, but 3.3 V only (2.7–3.6 V); 32-pin TSOP(I), 8×20 mm. | Requires 3.3 V supply rail and level-shifting for 5 V systems; not drop-in compatible with 5 V logic interfaces. | Select when migrating to 3.3 V platforms and redesigning power delivery; verify /OE and /WE timing margins against controller. |
| CY62128ELL-70ZSXI | 128K×8, 70 ns, 5 V operation; 32-pin SOIC (not TSOP); higher ICCA (85 mA vs. 70 mA) and no data retention below 4.5 V. | Larger SOIC footprint increases board area; lacks low-VCC retention - unsuitable for battery-backed hold mode. | Choose for through-hole prototyping or legacy SOIC layouts; avoid where data retention during brown-out is required. |
Compared with IS61LV1024AL-70TLI and CY62128ELL-70ZSXI, the UPD431000AGZ-70LL-KJH-E3-A uniquely combines 5 V compatibility, 2.0 V data retention, and TSOP(I) packaging - making it the only option among the three that supports both legacy 5 V designs and robust power-fail resilience without external circuitry.
Availability
UPD431000AGZ-70LL-KJH-E3-A is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostic instruments, and automated test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for UPD431000AGZ-70LL-KJH-E3-A 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 formed in 2010 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and memory solutions.
The μPD431000A family was designed for cost-sensitive, high-reliability embedded systems needing fast, low-power static RAM with flexible enable architecture and battery-backed data retention - targeting industrial control, test instrumentation, and communications infrastructure.
FAQ
What is the maximum access time specification for UPD431000AGZ-70LL-KJH-E3-A?
The UPD431000AGZ-70LL-KJH-E3-A has a maximum address access time (tAA) of 70 ns at VCC = 4.5–5.5 V and TA = 0–70 °C. This value is guaranteed across process, voltage, and temperature corners per Renesas datasheet M11657EJEV0DS, and applies to all package variants including the TSOP(I) version.
Does UPD431000AGZ-70LL-KJH-E3-A support true 5 V operation?
Yes. The UPD431000AGZ-70LL-KJH-E3-A is rated for 4.5–5.5 V operation (L-version), with VIH minimum of 2.2 V and VOH minimum of 2.4 V at IOH = –1.0 mA - fully compatible with TTL and 5 V CMOS logic families without level translation.
What package type and dimensions does UPD431000AGZ-70LL-KJH-E3-A use?
UPD431000AGZ-70LL-KJH-E3-A uses a 32-pin plastic TSOP(I) package measuring 8.0 mm × 20.0 mm (JEDEC MO-153AC), with normal bent leads (KJH suffix) and RoHS-compliant lead-free finish (E3-A suffix).
Can UPD431000AGZ-70LL-KJH-E3-A retain data at voltages below 4.5 V?
Yes. The UPD431000AGZ-70LL-KJH-E3-A guarantees data retention down to 2.0 V (VCCDR1) when both /CE1 and CE2 are held in retention-active states - enabling reliable hold-mode operation during brown-out conditions common in industrial power supplies.
How many chip enable signals does UPD431000AGZ-70LL-KJH-E3-A have, and what are their logic polarities?
The UPD431000AGZ-70LL-KJH-E3-A has two chip enable inputs: /CE1 (active-low) and CE2 (active-high). Both must be asserted simultaneously (/CE1 = low, CE2 = high) for read or write operations; either deassertion places the device in standby with I/O in high-impedance state.
UPD431000AGZ-70LL-KJH-E3-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- -
- Memory Format:
- -
- Technology:
- -
- Memory Size:
- -
- Memory Organization:
- -
- Memory Interface:
- -
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
UPD431000AGZ-70LL-KJH-E3-A FAQ
1.How can I place an order for UPD431000AGZ-70LL-KJH-E3-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD431000AGZ-70LL-KJH-E3-A 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 UPD431000AGZ-70LL-KJH-E3-A reliable?
The price and inventory of UPD431000AGZ-70LL-KJH-E3-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD431000AGZ-70LL-KJH-E3-A is usually 5 days.
3.What payment methods are accepted for UPD431000AGZ-70LL-KJH-E3-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD431000AGZ-70LL-KJH-E3-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD431000AGZ-70LL-KJH-E3-A?
UPD431000AGZ-70LL-KJH-E3-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD431000AGZ-70LL-KJH-E3-A 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 UPD431000AGZ-70LL-KJH-E3-A?
For technical support, including UPD431000AGZ-70LL-KJH-E3-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD431000AGZ-70LL-KJH-E3-A requirements.
6.How does Aetrix verify that UPD431000AGZ-70LL-KJH-E3-A is sourced from the original manufacturer or authorized distributors?
All UPD431000AGZ-70LL-KJH-E3-A 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 UPD431000AGZ-70LL-KJH-E3-A meets industry standards.
7.What is the process for return or replacement of UPD431000AGZ-70LL-KJH-E3-A?
All UPD431000AGZ-70LL-KJH-E3-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD431000AGZ-70LL-KJH-E3-A, 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 UPD431000AGZ-70LL-KJH-E3-A part is unused and in its original packaging.
Return procedure for UPD431000AGZ-70LL-KJH-E3-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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