My Inquiry
My Account
Infineon Technologies CY7C1380C-167AC
- Part No.:
- CY7C1380C-167AC
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
CY7C1380C-167AC.pdf
- Description:
- IC SRAM 18MBIT PAR 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,571
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY7C1380C-167AC from Cypress Semiconductor is a 18-Mb synchronous pipelined SRAM configured as 512K × 36, operating at 167 MHz with 3.3V core and 2.5V/3.3V I/O supplies. It features registered inputs/outputs, IEEE 1149.1 JTAG boundary scan, and user-selectable Intel Pentium–compatible burst modes. Used in high-speed network packet buffers and CPU cache coherency controllers requiring deterministic 3-1-1-1 access timing.
For engineers reviewing the CY7C1380C-167AC datasheet, CY7C1380C-167AC pinout, CY7C1380C-167AC application, or CY7C1380C-167AC equivalent, this page delivers verified package mapping (100-pin TQFP), clock-to-output timing (3.4 ns), burst control logic, byte-write register behavior, and JEDEC-compliant I/O voltage flexibility for system-level timing validation.
Technical Context
The CY7C1380C-167AC implements a two-bit internal burst counter synchronized to CLK's rising edge, supporting both linear and interleaved burst sequences via the MODE strap pin. Address strobes ADSP and ADSC are registered and mutually exclusive, with ADSP taking priority when both are active.
All synchronous inputs-including A[1:0], CE1/CE2/CE3, BWA–BWD, GW, BWE, ADV, ADSP, ADSC, and OE-are latched on CLK's rising edge; OE and ZZ operate asynchronously. The device supports self-timed writes with single-cycle chip deselect and asynchronous output enable for bus sharing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 18 Mb (512K × 36 organization), enabling full-word parallel access for 36-bit data buses without external multiplexing. |
| Maximum Clock Frequency | 167 MHz - defines maximum sustained burst throughput of 600 MB/s (36-bit × 167 MHz). |
| CLK-to-Q Access Time | 3.4 ns - guarantees deterministic read latency from clock edge to valid output, critical for synchronous pipeline alignment. |
| Core Supply Voltage | 3.3 V ± 0.3 V - powers internal logic and memory array; requires dedicated low-noise regulation separate from I/O rails. |
| I/O Supply Voltage | 2.5 V or 3.3 V - allows direct interfacing with either LVTTL or SSTL-2 I/O standards without level shifters. |
| Burst Mode Control | MODE pin selects Intel Pentium–interleaved or linear sequence - determines address increment pattern during burst reads/writes. |
| Byte Write Capability | Four independent byte enables (BWA–BWD) + global write (GW) - enables precise 1–4 byte granularity writes without read-modify-write cycles. |
Pinout & Package
Package: 100-pin Thin Quad Flat Package (TQFP), JEDEC-standard footprint (14 mm × 14 mm, 0.5 mm pitch), lead-free and RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Synchronous Address Input | Latched on rising CLK edge when ADSP or ADSC active; A1:A0 load burst counter for sequential addressing. |
| CE1, CE2, CE3 | Synchronous Chip Enable | CE1 active-low, CE2 active-high, CE3 active-low - hierarchical enable hierarchy for depth expansion across multiple devices. |
| ADSP / ADSC | Address Strobe (Processor / Controller) | Registered strobes; ADSP takes precedence - used to capture address and initiate burst sequence in CPU- or ASIC-controlled systems. |
| BWA–BWD | Byte Write Select | Active-low per-byte controls; qualified by BWE - enables selective 8-bit writes within 36-bit word without disturbing adjacent bytes. |
| GW | Global Write Enable | Active-low override - forces write to all four bytes regardless of BWA–BWD state, simplifying full-word updates. |
| OE | Asynchronous Output Enable | Active-low; tri-states DQs when HIGH - allows shared bus operation and eliminates need for external bus transceivers. |
| ZZ | Asynchronous Sleep Input | Active-high; reduces standby current to 70 mA while preserving data - used for power-gating during idle periods in portable systems. |
| VDDQ / VSSQ | I/O Power / Ground | Separate 2.5V/3.3V I/O rail - isolates noise-sensitive I/O circuitry from core logic, improving signal integrity on high-speed buses. |
Key Features
| Feature | Design Value |
|---|---|
| Pipelined Synchronous Interface | Registers all address/data/control inputs on CLK rising edge - eliminates external latch requirements and ensures setup/hold compliance at 167 MHz. |
| 3-1-1-1 Burst Access Rate | Delivers three consecutive accesses in first clock cycle, then one per cycle - maximizes bandwidth utilization for sequential memory traffic. |
| User-Selectable Burst Order | MODE pin configures Intel Pentium interleaved or linear addressing - matches host processor burst protocol without firmware overhead. |
| JTAG Boundary Scan (IEEE 1149.1) | Integrated test architecture with TDI/TDO/TMS/TCK pins - enables board-level interconnect testing and in-system debug without additional hardware. |
| Separate Core and I/O Supplies | VDD (3.3 V) and VDDQ (2.5 V or 3.3 V) decoupling - supports mixed-voltage system integration and reduces cross-coupling noise between logic and I/O domains. |
Applications
| Network Packet Buffer | CPU Cache Coherency Controller |
|---|---|
|
Use Scenario: Storing ingress/egress Ethernet frames in Layer 2/L3 switches before forwarding decisions. IC Role / Device Role / Timing Role: High-bandwidth, low-latency buffer with deterministic 3.4 ns CLK-to-Q timing and burst-aligned reads for frame assembly. Use Value: Eliminates FIFO bottlenecks by sustaining 600 MB/s throughput under sustained 167 MHz burst traffic, reducing packet drop rates. |
Use Scenario: Holding snoop responses and directory entries in multi-core x86-compatible SoCs. IC Role / Device Role / Timing Role: Synchronous SRAM acting as tag RAM and directory cache, interfaced directly to coherence engine logic. Use Value: Registered interface ensures timing closure at 167 MHz, while byte-write capability enables atomic update of individual cache line states. |
| Telecom Line Card Buffer | Industrial Real-Time Motion Controller |
|
Use Scenario: Buffering TDM time slots and ATM cells in base station framer modules. IC Role / Device Role / Timing Role: Pipelined SRAM providing jitter-free, cycle-accurate data staging between serial PHY and parallel bus interfaces. Use Value: Single-cycle chip deselect and asynchronous OE allow rapid context switching between multiple channelized data streams. |
Use Scenario: Storing interpolated trajectory points and servo command history in CNC motion controllers. IC Role / Device Role / Timing Role: Deterministic-access memory for real-time position lookup tables, synchronized to motion controller clock domain. Use Value: ZZ sleep mode reduces power by >50% during dwell periods while retaining position data, extending thermal headroom in enclosed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed synchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61WV102436BLL-167BLI | 1024K × 36 organization, same 167 MHz speed grade, but uses 3.3V-only I/O (no 2.5V support) and lacks JTAG. | Requires 3.3V I/O domain only; unsuitable for mixed-voltage designs needing 2.5V compatibility. | Select if JTAG testability is unnecessary and I/O voltage is fixed at 3.3V. |
| MT55LSD256W36BG-167:G | Same 512K × 36 density and 167 MHz rating, but uses DDR interface and differential clocks - not pin- or protocol-compatible. | Designed for double-data-rate systems; incompatible with single-data-rate synchronous bus protocols. | Choose only when migrating to DDR-based memory architecture with redesign of controller interface logic. |
Compared with IS61WV102436BLL-167BLI and MT55LSD256W36BG-167:G, the CY7C1380C-167AC uniquely combines 2.5V/3.3V I/O flexibility, integrated JTAG, and Intel burst compatibility - making it optimal for legacy CPU-attached and mixed-voltage telecom buffers where protocol fidelity and testability are mandatory.
Availability
CY7C1380C-167AC is available at Aetrix Electronics and suitable for network packet buffering, CPU cache coherency management, telecom line card staging, and industrial motion control applications requiring stable component supply and long-term obsolescence mitigation.
Supply support for CY7C1380C-167AC 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 high-performance memory, microcontrollers, and programmable logic solutions for industrial, automotive, and communications markets.
The CY7C1380C belongs to Cypress's high-speed synchronous SRAM product line, engineered specifically for CPU- and ASIC-connected systems demanding sub-4 ns access, burst-mode efficiency, and robust I/O voltage interoperability.
FAQ
What is the function of the MODE pin on CY7C1380C-167AC?
The MODE pin is a static configuration input that selects burst address sequencing: tied to GND for linear burst order, or to VDD/floating for Intel Pentium–style interleaved burst. It must remain stable during operation and has an internal pull-up resistor. This setting directly determines how the internal two-bit counter increments addresses during burst cycles.
Can CY7C1380C-167AC operate with 2.5V I/O while using 3.3V core supply?
Yes - the device supports independent VDDQ (2.5V or 3.3V) and VDD (3.3V) supplies. VDDQ powers only the I/O buffers and must be decoupled separately. This dual-rail design allows seamless interfacing with 2.5V FPGAs or ASICs while maintaining 3.3V core logic performance and timing margins.
How does the ZZ pin affect power consumption and data retention?
When ZZ is driven HIGH, the device enters a low-power sleep mode drawing ≤70 mA standby current while preserving all stored data. Data remains valid indefinitely as long as VDD and VDDQ remain within specification. For normal operation, ZZ must be held LOW or left floating (internal pull-down ensures safe default state).
Is JTAG boundary scan supported on the CY7C1380C-167AC in TQFP package?
No - JTAG signals (TDO, TDI, TMS, TCK) are not routed to pins in the 100-pin TQFP package variant. These pins are only available on the 119-ball BGA and 165-ball fBGA packages. For TQFP users, boundary scan functionality is unavailable; functional testing must rely on external probing or system-level verification.
CY7C1380C-167AC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Bag
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Synchronous, SDR
- Memory Size:
- 18Mbit
- Memory Organization:
- 512K x 36
- Memory Interface:
- Parallel
- Clock Frequency:
- 167 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 3.4 ns
- Voltage - Supply:
- 3.135V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x20)
CY7C1380C-167AC FAQ
1.How can I place an order for CY7C1380C-167AC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1380C-167AC 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 CY7C1380C-167AC reliable?
The price and inventory of CY7C1380C-167AC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1380C-167AC is usually 5 days.
3.What payment methods are accepted for CY7C1380C-167AC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1380C-167AC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1380C-167AC?
CY7C1380C-167AC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1380C-167AC 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 CY7C1380C-167AC?
For technical support, including CY7C1380C-167AC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1380C-167AC requirements.
6.How does Aetrix verify that CY7C1380C-167AC is sourced from the original manufacturer or authorized distributors?
All CY7C1380C-167AC 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 CY7C1380C-167AC meets industry standards.
7.What is the process for return or replacement of CY7C1380C-167AC?
All CY7C1380C-167AC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1380C-167AC, 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 CY7C1380C-167AC part is unused and in its original packaging.
Return procedure for CY7C1380C-167AC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C1380C-167AC 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
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…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
