Allyanz Electronics, Semiconductors, Integrated Modules, Displays. Manufacturers Representative & Distributor Australia, NZ & South East Asia. Tel: +61.3.9759 5949


ISSI Now Sampling 8Gb DDR4 DRAM

ISSI is now shipping its new 8Gb DDR4 to customers. 8Gb DDR4, x16 wide is shipping in Commercial, Industrial & Automotive Grade. 8Gb DDR4, x8 wide is scheduled to begin shipping in September.


Speed grades for initial samples are 2400MT/s (-083T) and 2666MT/s (-075V), which is backward compatible with DDR4-2133, and lower speeds. Faster speed grades such as 2933 and 3200 are planned in the next few months.

For more information or samples please contact Allyanz.

Den Org Type Part Number
2G Single Channel (1×16) LPDDR4 IS43LQ16128A
Two Channel (2×16)* LPDDR4 IS43LQ32640A
4G Single Channel (1×16) LPDDR4 IS43LQ16256A
Two channel (2×16) LPDDR4 IS43LQ32128A
8G Two channel (2×16) LPDDR4 IS43LQ32256A
2G Single channel (1×16) LPDDR4X IS43LQ16128AL
Two Channel (2×16)* LPDDR4X IS43LQ32640AL
4G Single Channel (1×16) LPDDR4X IS43LQ16256AL
Two channel (2×16) LPDDR4X IS43LQ32128AL
8G Two channel (2×16) LPDDR4X IS43LQ32256AL



Integrated Silicon Solution, Inc. (ISSI) has announced that it has entered into a definitive agreement with Sigma Designs, Inc. (“SD”) under which ISSI will acquire Sigma Designs Israel S.D.I. Ltd., which is the wired connectivity business of SD and a leader in and home connectivity solutions.

The transaction is subject to customary closing conditions and is expected to close later this month. technology offers a single standard for connecting networked devices over any existing wired infrastructure (power-line, coax and phone-line) to meet the demands of multi-screen and expanded bandwidth content in today’s homes. This business supplies standards- based chipsets that enable carrier-class distribution of broadband digital content over all three types of existing wires for distribution of Triple Play and IPTV in the home. The business sells its technology to OEMs who build solutions for multimedia home networking and multi-dwelling unit (MDU) broadband access markets and its chipsets are used in set-top boxes, residential gateways, optical network terminators and Ethernet bridges

The acquisition of SD’s wired connectivity business will strengthen ISSI’s product portfolio by adding specialty networking technology to expand ISSI’s future growth opportunities. The connectivity products will expand ISSI’s customer base to new home networking and Smart Grid customers. Smart Grid services outside the home include Advanced Metering Infrastructure (AMI), Automated Meter Management (AMM), and Automated Meter reading (AMR).

Nadav Katsir, SD’s Vice President and Manager, Home Connectivity Unit, commented, “The connectivity team is excited to be joining ISSI and leveraging its global capabilities. We remain committed to serving our customers and growing our business.”

KY Han, ISSI’s President and CEO, commented, “We are excited to add the world class connectivity team to our Analog and Mixed Signal product line. This product line adds a new dimension to ISSI’s product base to create a new platform for growth. Our customers will benefit from the technology since it offers high performance and unique solutions enabling cost effective communication in emerging applications such as in Home Networking and Smart Grid. We look forward to expanding our customer relationships and pursuing additional growth opportunities in new markets.”

ISSI Announces Full Function LED Driver IC For Automotive Interior Lighting

ISSI Full Function LED Driver IC For Automotive Interior Lighting

150mA Linear LED Driver with Push-Button Input Combined with Courtesy Signal

Integrated Silicon Solution, Inc. (ISSI), a leader in advanced memory and analog IC solutions, has announced a single chip solution for automotive interior lighting.

The IS32LT3175 is a feature-rich AEC-Q100 certified linear LED driver enabling reduced BOM count for low-cost and compact designs.


Key features and benefits of the IS32LT3175 include:

  • Reduced BOM: LED driver with theatrical dimming in one small 8 pin SOP package resulting in 65% less components requiring less printed circuit board area.
  • Linear LED Driver: Low-noise, low-EMI, linear current source adjustable from 10~150 mA into one or more LEDs.
  • Switch Input: Integrates switch debounce and latching logic to enable use of low cost momentary contact switch. The switch On/Off state is held during start-stop operation when voltage drops below 6V for a short period of time.
  • Local or Remote: Can be controlled remotely by the automobile’s microcontroller or locally with a momentary contact switch. The local switch has priority over the remote microcontroller providing the user with direct control of the LED lamp.
  • No Microcontroller: Advanced LED performance can be adjusted with simple resistors, eliminating the need for a microcontroller.
  • AEC-Q100: Meets stress testing specifications making it suitable for use in the harsh automotive environment with guaranteed operation from –40°C to +125°C.

Please contact Allyanz today for further details and support on ISSI’s range of LED drivers, including samples & evaluation boards.

ISSI Launches Next Generation Family of Matrix FxLED Driver ICs

IS31FL3741, IS31FL3742 drive up to 351 LEDs and support individual LED lighting effect functions for creating a configurable array of color animation visuals with fault reporting

Integrated Silicon Solution, Inc. (ISSI), a leader in advanced memory and analog IC solutions, has announced a family of high performance LED drivers, IS31FL3741 & IS31FL3742 to support LED matrices consisting of 351 & 180 LEDs respectively.

With the introduction of these two devices, ISSI expands its FxLED driver family to offer the widest selection of matrix LED driver solutions for gaming, consumer and white goods applications.

ISSI’s LED matrix architecture provides designers with flexibility in controlling individual LEDs or an array of LEDs resulting in simplified color & dimming adjustment and lighting zone selection for a large array of LEDs.

The IS31FL374x family of matrix LED drivers integrates many advanced features such as a configurable matrix (row/column) architecture, global dimming, individual LED peak current control registers, individual LED PWM control registers, individual LED open/short fault detection; all accessible via a fast 1MHz I2C compatible bus interface.

Each LED has its own corresponding control and fault status register to provide individual LED color and dimming effects, de-ghosting and fault reporting for enhanced overall system performance and reliability.

LED matrix architectures typically experience a “ghosting effect” where an LED remains dimly ON due to a residual charge in the LED array matrix.

The IS31FL374x family eliminates this residual charge and therefore the ghosting effect.


“The growth in video gaming peripherals requires ever more customizable RGB LEDs synchronized to the gaming environment,” said Ven Shan, ISSI VP of Analog products. “ISSI’s latest family of matrix FxLED drivers provides peripheral designers with a feature rich, fast and flexible control of a large number LEDs; simplifying the integration and synchronization of the LED lighting effects for the high end gaming platforms.”

The signals required to support 351, or 180 LEDs are driven in a row/column multiplexed architecture which reduces device package size while resulting in fewer traces and minimal PCB area. The added advantage of driving LEDs in this row/column configuration is that no LED will ever be reverse-biased at any time thereby improving LED longevity. For applications requiring a huge array of LEDs, up to 4 IS31FL374x devices can be connected with one I2C bus.

Key features and benefits of the IS31FL3741, IS31FL3742:

  • High LED Count – Up to 351 LEDs (39×9) matrix
  • 1/9 Duty Cycle Scanning – Higher average LED brightness
  • Theatrical Dimming – Three selectable smooth dimming scenarios for each LED
  • De-Ghost Function – Guarantees LED is either fully ON or OFF
  • Global Current Set – 256 steps Global Current Setting
  • 8-bit Dot Correction – Individual 256 DC peak current control steps
  • 8-bit Grayscale Control – Individual 256 PWM control steps
  • Fault Detection – Individual LED open or short detection with system notification
  • High Speed Interface – 1MHz I2C-compatible interface provides fast access to LED registers
  • Industrial Temperature – Operating temperature range -40°C to +125°C for high reliability

Please contact Allyanz today for further details and support on ISSI’s range of LED drivers, including samples & evaluation boards.

ISSI Introduces 512Mb SPI NOR Flash for Automotive & Industrial Markets

AEC-Q100 Qualified, new device extends range of SPI NOR support from 256Kb way up to 512Mb density

Integrated Silicon Solution, Inc. (ISSI), a leader in advanced memory and analog solutions, has begun sampling production units of automotive grade 512Mb Serial (SPI) NOR Flash.

ISSI’s SPI NOR Flash product supports a wide operating temperature range of -40C to 125C, making it ideal for the next generation automotive, industrial and Internet of Things (IoT) applications.

The 512Mb SPI NOR device exceeds the AEC- Q100 requirements and is PPAP ready.


This new device extends our range of SPI NOR support from 256Kb all the way up to 512Mb density.

The 512Mb SPI NOR is available in multiple package choices, along with KGD (known good die):

  • 16-pin SOIC 300mil
  • WSON 8×6 mm
  • 24-ball TFBGA 6x8mm 5×5 package

ISSI is also working on Multi-Chip Package (MCP) options of SPI NOR Flash and its’ DRAM product line.

Lyn Zastrow, VP of the Automotive Business Unit at ISSI explained, “With the proliferation of SPI NOR in almost every automotive application, this new density extends our range into some of the new high-end ADAS, Infotainment, and Digital Cockpit applications. Unlike many of our competitors, we can offer a SPI NOR solution from a very small density to a very large density. We continue to offer a complete portfolio of every technology.”

“ISSI’s automotive grade SPI NOR Flash support applications with harsh environments that rely on long-term reliable system operation over a wide temperature range”, said Anand Bagchi, Director Marketing at ISSI. “The addition of 512Mb SPI NOR Flash enhances our NOR Flash product line and provides our customers the ultra-reliable high-density SPI NOR option they are looking for.”

ISSI’s automotive grade SPI NOR Flash

In addition to the SPI NOR, ISSI offers ISSI offers a multitude of DRAMs including SDR, DDR2, DDR3 and mobile SDR, LPDDR, LPDDR2; a complete line of both asynchronous and synchronous SRAMs with densities from 64Kb to 72Mb; and a broad portfolio of SPI NAND and parallel NAND Flash, including eMMC. ISSI also has a range of Known Good Die (KGD) memories in its portfolio.

Please contact Allyanz today for further details and support on ISSI’s range of SPI Flash, including samples.