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Infineon Technologies CY7C1019D-10VXI
- Part No.:
- CY7C1019D-10VXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 32-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
CY7C1019D-10VXI.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,988
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Product details
Overview
CY7C1019D-10VXI from Infineon Technologies (formerly Cypress) is a 1-Mbit (128 K × 8) high-speed CMOS static RAM with 10 ns access time, 5 V ±0.5 V supply, and automatic CE-controlled power-down. It features center power/ground pinout, TTL-compatible I/O, and supports memory expansion via independent CE, OE, and WE controls in industrial temperature range (–40 °C to +85 °C).
For engineers reviewing the CY7C1019D-10VXI datasheet, CY7C1019D-10VXI pinout, CY7C1019D-10VXI application, or CY7C1019D-10VXI equivalent, key selection considerations include tAA = 10 ns read timing, ISB2 = 3 mA standby current, 2.0 V data retention capability, and compatibility with legacy 5 V TTL microcontrollers and DSPs requiring fast parallel SRAM interfacing.
Technical Context
The CY7C1019D-10VXI implements a fully decoded 128 K × 8 asynchronous SRAM architecture with tri-state bidirectional I/O drivers and dual enable logic (CE and OE). Its automatic power-down activates when CE is HIGH, reducing ICC to ≤3 mA under CMOS input conditions.
It uses TTL-level input thresholds (VIH ≥ 2.2 V, VIL ≤ 0.8 V) and delivers VOH ≥ 2.4 V at IOH = –4 mA - compatible with 5 V TTL bus systems but not with strict CMOS VIH = 3.5 V requirements without level-shifting support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 131,072 × 8-bit organization - supports byte-wide data buses without external multiplexing |
| Access Time (tAA) | 10 ns maximum - enables direct interface with 100 MHz CPU buses requiring sub-10 ns setup/handshake margins |
| Supply Voltage | 5.0 V ±0.5 V - matches standard TTL logic rails and eliminates need for voltage translation |
| Standby Current (ISB2) | 3 mA maximum at VCC = 5 V, CE HIGH - reduces system power during idle cycles in battery-backed or low-power modes |
| Data Retention Voltage | 2.0 V minimum - allows memory state preservation during brown-out or controlled power-down sequences |
| Operating Temperature | –40 °C to +85 °C - qualified for industrial control, instrumentation, and automotive body electronics environments |
| Input Capacitance | 6 pF max - minimizes loading on address/data bus drivers and supports clean signal integrity up to 100 MHz operation |
Pinout & Package
Package: 32-pin TSOP II (10.16 mm × 20.95 mm, 0.5 mm pitch) and 32-pin SOJ (400-mil wide), both RoHS-compliant and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128 K-word decoding; no external address latching required |
| IO0–IO7 | Bidirectional Data I/O | Tri-state CMOS/TTL-compatible data bus; high-impedance when CE HIGH, OE HIGH, or WE LOW |
| CE | Chip Enable | Active-LOW enable controlling device selection and automatic power-down activation |
| OE | Output Enable | Active-LOW control of output drivers only; does not affect internal power state |
| WE | Write Enable | Active-LOW write strobe; combined with CE LOW to initiate write cycle; disables outputs during write |
| VCC | Power Supply | Two dedicated VCC pins (pins 16 & 32) placed centrally for low-noise, balanced power distribution |
| VSS | Ground | Two dedicated VSS pins (pins 15 & 31) adjacent to VCC for minimized ground bounce and improved EMI performance |
Key Features
| Feature | Design Value |
|---|---|
| Pin- and function-compatible with CY7C1019B | Drop-in replacement for legacy designs using CY7C1019B, preserving PCB layout and firmware timing |
| Center power/ground pinout | Reduces simultaneous switching noise and improves signal integrity on dense memory interfaces |
| Automatic CE power-down | Reduces ICC from 80 mA active to ≤3 mA standby without external control logic or sleep mode software overhead |
| TTL-compatible I/O levels | Direct connection to 5 V microcontrollers (e.g., Intel 80C188, Motorola 68HC11) without level shifters |
| Easy memory expansion | Independent CE/OE/WE enables multi-chip bank decoding and interleaved addressing schemes |
Applications
| Industrial PLC Memory Buffer | Legacy Microcontroller Data Cache |
|---|---|
Use Scenario: Real-time I/O scanning and program execution in programmable logic controllers with deterministic timing budgets. IC Role / Device Role / Timing Role: Fast-access scratchpad memory holding ladder logic variables, register states, and communication buffers. Use Value: 10 ns tAA ensures zero-wait-state operation with 100 MHz bus clocks, eliminating pipeline stalls during data-intensive scan cycles. | Use Scenario: External RAM extension for 8-bit/16-bit microcontrollers lacking on-chip SRAM (e.g., 8051 derivatives, Z80-based systems). IC Role / Device Role / Timing Role: Byte-wide parallel memory mapped at fixed address space, accessed via MOVX or similar instructions. Use Value: TTL-compatible inputs eliminate level-shifter components; center VCC/VSS pins reduce ground bounce in noisy factory-floor environments. |
| DSP Code/Data Memory | Automotive Body Control Module |
Use Scenario: Off-chip program and coefficient storage for fixed-point digital signal processors in audio or motor control applications. IC Role / Device Role / Timing Role: Dual-port accessible memory used for ping-pong buffering and real-time filter coefficient updates. Use Value: Tri-state I/O and independent OE/WE allow concurrent read/write arbitration without external bus transceivers. | Use Scenario: Non-volatile configuration storage and runtime variable retention in door module ECUs operating across extended temperature ranges. IC Role / Device Role / Timing Role: Backup memory retaining critical calibration data and fault logs during ignition cycling. Use Value: 2.0 V data retention enables reliable state hold during 12 V battery dips below 5 V, meeting ISO 16750-2 transient requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar static RAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS6C1008-10TIN | Same 128 K × 8 organization, 10 ns speed, but uses CMOS input thresholds (VIH = 3.5 V min) and lower ISB = 1 μA | Requires level shifting when interfacing with 5 V TTL CPUs; better suited for mixed-signal SoC coexistence | Select if system uses CMOS I/O standards and ultra-low standby power is prioritized over TTL compatibility |
| IS61LV102416-10TLI | 1 Mbit × 16-bit organization, 10 ns speed, 3.3 V supply only, LVTTL-compatible I/O | Not pin-compatible; requires PCB redesign and 3.3 V power rail; supports wider data path | Select only when migrating to 16-bit data bus and 3.3 V system architecture |
Compared with AS6C1008-10TIN and IS61LV102416-10TLI, the CY7C1019D-10VXI uniquely preserves legacy 5 V TTL bus compatibility while delivering industrial-grade reliability and proven board-level integration in cost-sensitive embedded systems.
Availability
CY7C1019D-10VXI is available at Aetrix Electronics and suitable for industrial PLC memory buffers, legacy microcontroller data caches, and automotive body control modules requiring stable component supply across long production lifecycles.
Supply support for CY7C1019D-10VXI 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
Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, sensor solutions, and memory products for industrial, automotive, and IoT applications.
The CY7C1019D belongs to Infineon's legacy parallel SRAM product line, designed specifically for drop-in replacement of aging 5 V TTL-compatible memory in industrial control and embedded systems where reliability and long-term availability are critical.
FAQ
Is CY7C1019D-10VXI compatible with 3.3 V microcontrollers?
No. The CY7C1019D-10VXI operates exclusively at 5 V ±0.5 V and uses TTL input thresholds (VIH ≥ 2.2 V). Direct interface with 3.3 V logic requires level-shifting circuitry, as its inputs are not 5 V-tolerant in 3.3 V mode and lack internal clamping diodes for safe overvoltage operation.
What is the difference between ISB1 and ISB2 standby current specifications?
ISB1 (≤10 mA) applies when CE is HIGH and inputs follow TTL logic thresholds; ISB2 (≤3 mA) applies under stricter CMOS input conditions (VIN > VCC – 0.3 V or < 0.3 V). ISB2 reflects deeper power-down achievable only when driven by CMOS-compatible control signals, commonly used in low-power system states.
Can CY7C1019D-10VXI be used in place of CY7C1019B-10VXI?
Yes. The CY7C1019D-10VXI is explicitly pin- and function-compatible with CY7C1019B-10VXI per its datasheet. It maintains identical timing, electrical characteristics, and package footprint, enabling direct replacement without design modification or requalification.
Does CY7C1019D-10VXI support battery backup operation?
Yes. With VCC reduced to 2.0 V and CE held HIGH, the device retains stored data while drawing ≤3 mA (ISB2). This enables use with coin-cell or supercapacitor backup circuits, provided the 2.0 V threshold is maintained during main power loss and recovery timing (tR > 50 µs) is observed.
CY7C1019D-10VXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 32-BSOJ (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:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 10ns
- Access Time:
- 10 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOJ
CY7C1019D-10VXI FAQ
1.How can I place an order for CY7C1019D-10VXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1019D-10VXI 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 CY7C1019D-10VXI reliable?
The price and inventory of CY7C1019D-10VXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1019D-10VXI is usually 5 days.
3.What payment methods are accepted for CY7C1019D-10VXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1019D-10VXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1019D-10VXI?
CY7C1019D-10VXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1019D-10VXI 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 CY7C1019D-10VXI?
For technical support, including CY7C1019D-10VXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1019D-10VXI requirements.
6.How does Aetrix verify that CY7C1019D-10VXI is sourced from the original manufacturer or authorized distributors?
All CY7C1019D-10VXI 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 CY7C1019D-10VXI meets industry standards.
7.What is the process for return or replacement of CY7C1019D-10VXI?
All CY7C1019D-10VXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1019D-10VXI, 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 CY7C1019D-10VXI part is unused and in its original packaging.
Return procedure for CY7C1019D-10VXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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