Long-Term Support
World Class Quality

Low Pin Count RAM Solution

Targeting IoT, Automotive, Industrial & Other Applications

HyperRAMTM
OctalRAM
HyperRAMTM

SerialRAM

QUADRAM

Serial SRAM

8Mb, 16Mb,32Mb, 64Mb, 128Mb,32Mb, 64Mb, 128Mb,8Mb, 16Mb, 32Mb

512Kb, 1Mb, 2Mb, 4Mb

32Mb, 64Mb

256Mb, 512Mb

256Mb, 512Mb

in Productionin Productionin Productionin Productionin Production

64Mb in Sampling

128Mb in Planning

1Gb in Planning

1Gb in Planning

128Mb in Planning

Serial RAM
Densities

8Mb, 16Mb, 32Mb, 64Mb

Packages

8-Pin SOIC , 8-Pin USON,
8-Pin WSON

Temperature-40 to 85°C; -40 to 105°C

On-Chip ECC

Not Supported

Speed

104MHz (VDD = 1.7V - 1.95V)
and (VDD = 2.7V - 3.6V)

8-contact WSON 6x5mm, 8-contact USON 4x3mm

8-pin SOIC, 150mil

Octal RAM
Densities

64Mb, 128Mb, 256Mb, 512Mb

Packages

24-Ball BGA

Temperature-40 to 85°C; -40 to 105°C,-40 to 125°C (64Mb, 128Mb)

On-Chip ECC

On Chip ECC (2-bit detection,1-bit correction) with optional
ERR signal (64Mb, 128Mb)

Speed

200MHz (VDD = 1.7V - 1.95V)
166MHz (VDD = 2.7V - 3.6V)

HyperRAMTM
Densities

64Mb, 128Mb, 256Mb, 512Mb

Packages

24-Ball BGA

Temperature-40 to 85°C; -40 to 105°C ;-40 to 125°C (64Mb, 128Mb)

On-Chip ECC

On Chip ECC (2-bit detection,1-bit correction) with optional
ERR signal (64Mb, 128Mb)

Speed

200MHz (VDD = 1.7V - 1.95V)
166MHz (VDD = 2.7V - 3.6V)

Serial RAM Overview• SPI (Serial Peripheral Interface) Compatible Bus: SPI(x1) / SDI(x2) / SQI(x4)mode• Very Low Bus Signal Count: 6 pinsfor x4 IO ; CS#, SCK, SIO0 - SIO3 or 4
pins for x1/x2 IO : CS#, SCK, SI(SIO0),SO(SIO1)• Very Simple Commands (7 commands):
Read/Write Memory, Read /Write Register, Enter SDI (x2)/SQI mode(x4), andReturn to SPI mode (x1)

Octal RAM Overview• DRAM technology based solution
with Hidden Refresh and OPI (OctalPeripheral Interface) Protocol• Very Low Signal Count: 11(12) pinsfor Functions and 8 I/O. (Optional
ERR# pin for 64Mb and 128Mb ECCproducts)• Variable Latency or Fixed Latency,
Burst Read/Write Operation andfeatures Read Data Training (16-bit
Pattern for Training Purpose).
HyperRAMTM Overview• HyperRAM™ memory is DRAM
based memory with HyperBus™
Interface• Very Low Signal count (Address,Command, and Data through 8 DQpins)• Hidden Refresh operation

June 2024 • 1623 Buckeye Dr. Milpitas, CA 95035 • Tel: 408-969-6600 • Support: sram@issi.com • www.issi.com

Long-Term Support
World Class Quality

8Mb, 16Mb, 32Mb, 64Mb

Packages

24-Ball BGA

Temperature-40 to 85°C; -40 to 105°C,-40 to 125°C (8Mb, 16Mb)

Targeting IoT, Automotive, Industrial & Other Applications

QUAD RAM Overview• Quad DDR (x4 xSPI) Interface:
Command (1 byte) = SDR, Address(2-byte) & Data = DDR• Low Signal Counts: 7 Signal pins
Complete Memory Solutions(CS#, SCLK, DQSM, SIO0~SIO3)• Configurable Wrapped Burst Length:
For the Embedded Market
16, 32, 64, and 128

QUAD RAM
Densities

Low Pin Count RAM Solution

On Chip ECC (2-bit detection,1-bit correction) with optional
Additional
ERR Flashsignal inProducts(8Mb, 16Mb)

On-Chip ECC

Serial &200MHz
Parallel
NAND(VDD= 1.7V - 1.95V)

Speed

133MHz(VDD = 2.7V - 3.6V)
SPI NAND

1Gb

2Gb

4Gb

8Gb

✓
1bit ECC✓
1bit ECC✓
8bit ECC✓8bit ECC

SerialSRAM
Parallel SLC
NAND

1Gb

2Gb

Densities

512Kb, 1Mb, 2Mb, 4Mb
3V/1.8V; (x8 & x16)

Packages

8-Pin SOIC✓
1 or 4bit ECC✓
1 or 4bit ECC

Temperature-40 to 85°C; -40 to 105°C
Parallel Flash (NOR)

On-Chip ECC

Not
3V
w/Supported
VIO = 1.65-3.6V

Speed

30MHz (VDD = 1.65V - 2.2V)
45MHz (VDD = 2.2V - 3.6V)

3V/1.8V

Serial SRAM Overview
8Gb
16Gb• SPI (Serial Peripheral Interface)✓✓Compatible ✓Bus: SPI(x1) / SDI(x2)/1 or 4 or 8bit ECC
8bit ECC
8bit ECCSQI(x4) mode
• Minimum four Signal Pins for 4Mb
CK, CS#
64Mb (x1): SI, SO,
128Mb
256Mb
• Random Read/Write Operation with✓✓✓
Ultra Low Standby Current
4Gb

Parallel NOR

32Mb✓Complete
SRAM
Solution
Low
Pin CountRAM
Solutions
Low Pin Count

512Kb

1Mb

2Mb

4Mb

Serial SRAM

✓✓✓

✓

8Mb

16Mb

32Mb

64Mb

128Mb

✓ECC

✓
ECC✓✓✓

HyperRAM

✓

✓
ECC

✓
ECCOctalRAM✓

Serial/QUAD RAM(SPI/QPI)

✓ECC

✓
ECC

256Mb

512Mb1Gb

✓✓

✓

✓

✓

✓

Industrial & Automotive Temperature Grade, Long Term Support, RoHS & Halogen-free Compliance TSCA Compliance
STATUS✓

Production✓Sampling✓

In Development✓ Under Consideration

ECC: On-chip Error Correcting Code is an available option

June 2024 • 1623 Buckeye Dr. Milpitas, CA 95035 • Tel: 408-969-6600 • Support: sram@issi.com • www.issi.com