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Infineon Technologies CY7C109BN-15ZXCT
- Part No.:
- CY7C109BN-15ZXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
CY7C109BN-15ZXCT.pdf
- Description:
- IC SRAM 1MBIT PARALLEL 32TSOP I
- Quantity:
- Payment:
- Shipping:
Inventory:3,091
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Product details
Overview
CY7C109BN-15ZXCT from Cypress Semiconductor is a 128K × 8 (131,072 × 8) high-speed CMOS static RAM with 15 ns access time, TTL-compatible I/O, automatic CE power-down, and 2.0V data retention. It operates at 5V ±10% over commercial temperature range (0°C to +70°C) in a 32-pin TSOP Type I package and is used in embedded controllers requiring fast, low-power volatile memory with seamless expansion.
For engineers reviewing the CY7C109BN-15ZXCT datasheet, CY7C109BN-15ZXCT pinout, CY7C109BN-15ZXCT application, or CY7C109BN-15ZXCT equivalent, key selection criteria include tAA = 15 ns read timing, ISB2 = 10 mA CMOS standby current, CE1/CE2 dual-enable architecture for bank selection, and compatibility with 5V TTL logic families in legacy industrial control and instrumentation systems.
Technical Context
This SRAM implements a full asynchronous interface with independent active-low CE1 and active-high CE2 enables, enabling flexible memory banking and hierarchical decoding. Its three-state bidirectional I/Os (I/O0–I/O7) support bus sharing without external transceivers.
The device uses a 17-bit address bus (A0–A16) to access all 131,072 locations and supports three distinct read cycles (CE-controlled, OE-controlled, and WE-controlled) plus two write cycle modes. Power-down is fully automatic upon chip deselect, reducing ICC to ≤10 mA at VCC = 5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 131,072 × 8 bits - provides 128 KB of byte-addressable storage with no internal wait states |
| Access Time (tAA) | 15 ns - guarantees data valid within 15 ns of stable address and CE/OE assertion for 5V systems |
| Supply Voltage | 5V ±10% - compatible with standard TTL/CMOS logic rails and legacy 5V system designs |
| Standby Current (ISB2) | 10 mA max - enables low-power hold mode during CPU idle without external gating |
| Data Retention Voltage | 2.0V - retains memory contents down to 2.0V VCC, supporting graceful brown-out recovery |
| Input/Output Compatibility | TTL-level - accepts 0.8V/2.2V VIH/VIL thresholds and drives 4 mA VOH / 8 mA VOL loads |
| Package | 32-pin TSOP Type I (8×20 mm) - surface-mount footprint optimized for high-density PCB layouts |
Pinout & Package
The CY7C109BN-15ZXCT is housed in a 32-pin Thin Small Outline Package (TSOP Type I), 8 mm × 20 mm body, with gull-wing leads and JEDEC MO-153 compliant dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit unidirectional address bus selecting one of 131,072 memory locations |
| I/O0–I/O7 | Bidirectional Data Bus | Three-state CMOS I/O pins shared for read data output and write data input |
| CE1 | Active-Low Chip Enable | Primary enable; device selected only when CE1 = LOW and CE2 = HIGH |
| CE2 | Active-High Chip Enable | Secondary enable; must be HIGH with CE1 LOW for memory access |
| OE | Active-Low Output Enable | Controls output drivers; HIGH forces I/O pins into high-impedance state during reads |
| WE | Active-Low Write Enable | Initiates write cycle when CE1 = LOW, CE2 = HIGH, and WE = LOW |
| VCC | Power Supply | +5V supply pin; decoupling required within 10 mm of pin per layout guidelines |
| GND | Ground Reference | Signal and power ground reference for all inputs, outputs, and internal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Dual Chip Enable Architecture | CE1 (active-low) and CE2 (active-high) allow hierarchical memory mapping and seamless expansion across multiple banks |
| Automatic Power-Down | Enters low-current standby (≤10 mA) immediately on CE1 HIGH or CE2 LOW-no control logic required |
| 2.0V Data Retention | Maintains stored data at VCC ≥ 2.0V with CE deselected, enabling battery-backed hold during main supply loss |
| TTL-Compatible Interface | Direct connection to 5V microcontrollers and FPGAs without level-shifting or pull-up resistors |
| Three-State Output Drivers | I/O pins enter high-Z on deselect, OE HIGH, or during write-eliminates bus contention in shared-data systems |
Applications
| Industrial PLC Memory Buffer | Legacy Embedded Controller Cache |
|---|---|
Use Scenario: Storing real-time I/O status and program variables in programmable logic controllers with 5V backplane buses. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer interfacing directly to 8051 or Z80-derived MCUs via parallel address/data bus. Use Value: 15 ns tAA ensures deterministic response to scan-cycle interrupts; dual CE enables multi-module memory addressing without glue logic. | Use Scenario: Providing fast scratchpad memory for firmware execution in medical diagnostic equipment with long product lifecycles. IC Role / Device Role / Timing Role: Volatile working memory mapped into CPU address space, accessed under strict timing constraints during analog signal processing. Use Value: 2.0V data retention allows safe state preservation during brief AC line dips; TSOP package supports compact, serviceable board layouts. |
| Test Equipment Pattern Generator | Avionics Data Acquisition Buffer |
Use Scenario: Holding waveform pattern tables in automated test systems where deterministic read latency is critical. IC Role / Device Role / Timing Role: High-speed memory array synchronized to FPGA-based sequencers generating precise digital stimulus waveforms. Use Value: tDOE = 8 ns guarantees data availability within one clock cycle of OE assertion-enabling single-cycle pattern updates. | Use Scenario: Capturing sensor telemetry in airborne flight data recorders operating in extended temperature environments. IC Role / Device Role / Timing Role: Buffered memory stage between ADC interface and serial transmission controller in DO-254-compliant hardware. Use Value: ISB2 ≤ 10 mA minimizes standby power in battery-limited deployments; Pb-free TSOP variant meets aerospace RoHS requirements. |
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 |
|---|---|---|---|
| AS6C1008-15TIN | Same 128K × 8 organization, 15 ns access, but uses single active-low CE and requires external power-down control | Lacks dual CE architecture and automatic power-down-requires additional logic for bank management | Select when cost sensitivity outweighs design simplicity; verify board-level power sequencing |
| IS61LV1024-15K | 128K × 8, 15 ns, 3.3V core-but supports 5V-tolerant I/O and includes BYTE# control for x8/x16 flexibility | Requires level translation for pure 5V systems; BYTE# adds complexity for simple x8 interfaces | Prefer for mixed-voltage systems or future-proofing; avoid if strict 5V-only compliance is mandatory |
Compared with AS6C1008-15TIN and IS61LV1024-15K, the CY7C109BN-15ZXCT delivers unique value through its dual CE interface for seamless memory expansion and zero-overhead automatic power-down-critical for legacy 5V designs where board space and BOM count are constrained.
Availability
CY7C109BN-15ZXCT is available at Aetrix Electronics and suitable for industrial PLCs, legacy embedded controllers, automated test equipment, and avionics data acquisition systems requiring stable component supply with long-term lifecycle support.
Supply support for CY7C109BN-15ZXCT 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
Cypress Semiconductor (now part of Infineon Technologies) is a U.S.-based semiconductor company specializing in memory, PSoC, and USB solutions for industrial, automotive, and consumer markets.
The CY7C109BN belongs to Cypress's legacy parallel SRAM product line, designed specifically for 5V microcontroller and FPGA-based systems requiring deterministic, low-latency volatile memory with minimal external logic.
FAQ
Is CY7C109BN-15ZXCT pin-compatible with CY7C109BN-15VC?
Yes-both share identical 32-pin TSOP Type I pinout (51-85056 package diagram). The -15ZXCT variant is Pb-free and RoHS-compliant, while -15VC uses leaded solder finish; mechanical and electrical pin functions are identical.
Does this SRAM require an external clock signal?
No-CY7C109BN-15ZXCT is a fully asynchronous static RAM. All operations are controlled by edge- and level-sensitive control signals (CE1, CE2, OE, WE); no clock input or timing generator is needed.
Can CY7C109BN-15ZXCT operate reliably at 4.5V?
Yes-the device is specified for VCC = 5V ±10%, meaning 4.5V to 5.5V. At 4.5V, tAA remains within 15 ns (per datasheet Table on Page 3), and all DC parameters including VOH/VOL and VIH/VIL remain valid.
What happens to data during power interruption below 2.0V?
Data retention ceases below 2.0V VCC. If VCC drops below 2.0V while CE1 is HIGH or CE2 is LOW, stored bits may corrupt within microseconds. For reliable hold, maintain VCC ≥ 2.0V during power-loss events using backup capacitors or batteries.
CY7C109BN-15ZXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm 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:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 15ns
- Access Time:
- 15 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP I
CY7C109BN-15ZXCT FAQ
1.How can I place an order for CY7C109BN-15ZXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C109BN-15ZXCT 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 CY7C109BN-15ZXCT reliable?
The price and inventory of CY7C109BN-15ZXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C109BN-15ZXCT is usually 5 days.
3.What payment methods are accepted for CY7C109BN-15ZXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C109BN-15ZXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C109BN-15ZXCT?
CY7C109BN-15ZXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C109BN-15ZXCT 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 CY7C109BN-15ZXCT?
For technical support, including CY7C109BN-15ZXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C109BN-15ZXCT requirements.
6.How does Aetrix verify that CY7C109BN-15ZXCT is sourced from the original manufacturer or authorized distributors?
All CY7C109BN-15ZXCT 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 CY7C109BN-15ZXCT meets industry standards.
7.What is the process for return or replacement of CY7C109BN-15ZXCT?
All CY7C109BN-15ZXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C109BN-15ZXCT, 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 CY7C109BN-15ZXCT part is unused and in its original packaging.
Return procedure for CY7C109BN-15ZXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C109BN-15ZXCT Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
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93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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