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IS46QR16256B

ISSI

256Mb x 16 4Gb DDR4 SDRAM

IS43/46QR85120B IS43/46QR16256B ® Long-term Support World Class Quality 512Mbx8, 256Mbx16 4Gb DDR4 SDRAM JANUARY 2023...


IS46QR16256B

ISSI


Octopart Stock #: O-1501626

Findchips Stock #: 1501626-F

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Description
IS43/46QR85120B IS43/46QR16256B ® Long-term Support World Class Quality 512Mbx8, 256Mbx16 4Gb DDR4 SDRAM JANUARY 2023 FEATURES • Standard Voltage : VDD = VDDQ = 1.2V, VPP=2.5V • High speed data transfer rates with system frequency up to 2666 Mbps • Data Integrity - Auto Self Refresh (ASR) by DRAM built-in TS - Auto Refresh and Self Refresh Mode
More View s • DRAM access bandwidth - Separated IO gating structures by Bank Groups - Self Refresh Abort - Fine Granularity Refresh • Signal Synchronization - Write Leveling via MR settings - Read Leveling via MPR • Reliability & Error Handling - Command/Address Parity - Data bus Write CRC - MPR readout - Boundary Scan (x16 only) • Speed Grade (CL-TRCD-TRP) - 2400Mbps / 16-16-16 (- 083R) - 2666Mbps/ 18-18-18 (-075U) • Signal Integrity - Internal VREFDQ Training - Read Preamble Training - Gear Down Mode - Per DRAM Adressability - Configurable DS for system compatibility - Configurable On-Die Termination - Data bus Inversion (DBI) - ZQ Calibration for DS/ODT impedance accuracy via external ZQ pad (240 ohm +/- 1%) • Power Saving and efficiency - POD with VDDQ termination - Command/Address Latency (CAL) - Maximum Power Saving - Low power Auto Self Refresh (LPASR) • Operating Temperature - Commercial (Tc = 0oC to +95 oC) - Industrial (Tc = -40oC to +95oC) - Automotive A1 (Tc = - 40oC to +95oC) - Automotive A2 (Tc = - 40oC to +105oC) - Automotive A3 (Tc = - 40oC to +125oC) PROGRAMMABLE FUNCTIONS ADDRESS TABLE • Output Driver Impedance (34/48) • CAS Write Latency (9/10/11/12/14/16/18) • Additive Latency (0/CL-1/CL- 2) (x8 only) • CS# to Command Address (3/4/5/6/8) • Burst Type (Sequential/Interleaved) • Write Recovery Time (10/12/14/16/18/20/24) • Read Preamble (1T/2T) • Write Preamble (1T/2T) • Burst Length (BL8/BC4/BC4 or 8 on the fly) Options • Configuration : 256Mx16, 512Mx8 • Package: - 96-ball BGA (7.5mm x 13.5mm, 0.8mm ball pitch) for x16 - 78-ball BGA (10.0mm x 14.0mm, 0.8mm ball pitch) for x8 Parameter Row Addressing Column Addressing Bank Addressing Bank Groups Page size tRFC 256M x16 A0-A14 A0-A9 BA0-BA1 BG0 2KB 260ns 512M x8 A0-A14 A0-A9 BA0-BA1 BG0-BG1 1KB 260ns Copyright © 2023 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to






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