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8Gb (x16 x 2 channel ) Mobile LPDDR4/LPDDR4X
- 256Mb x16 x 2 channels
- 8 internal banks per each channel
• Low-voltage Core and I/O Power Supplies
VDD1 = 1.70-1.95V
VDD2 = 1.06-1.17V
VDDQ = 1.06-1.17V (LPDDR4)
VDDQ = 0.57-0.65V (LPDDR4X)
• LVSTL(Low Voltage Swing Terminated Logic) I/O
• Internal VREF and VREF Training
• Dynamic ODT :
DQ ODT :VSSQ Termination
CA ODT :VSS Termination
• Max. Clock Frequency : 1.6GHz (3.2Gbps)
• 16n Pre-fetch DDR architecture
• Single data rate (multiple cycles) command/
• Bidirectional/differential data strobe per byte of
• Programmable and on-the-fly burst lengths
• ZQ Calibration
• Operation Temperature
Industrial (T C = -40°C to 95°C)
Automotive, A1 (TC = -40°C to 95°C)
Automotive, A2 (TC = -40°C to 105°C)
Automotive, A3 (TC = -40°C to 125°C)
• Clock-Stop capability
The IS43/46LQ32256A and IS43/46LQ32256AL are
8Gbit CMOS LPDDR4 SDRAM. The device is orga-
nized as 2 channels per device, and individual channel
is 8-banks and 16-bits. This product uses a double-da-
ta-rate architecture to achieve high-speed operation.
The double data rate architecture is essentially a 16N
prefetch architecture with an interface designed to
transfer two data words per clock cycle at the I/O pins.
This product offers fully synchronous operations
referenced to both rising and falling edges of the clock.
The data paths are internally pipelined and 16n bits
prefetched to achieve very high bandwidth.
• On-chip temperature sensor whose status
can be read from MR4
• 200-ball x32 BGA Package (10x14.5 mm)
# of Channel
Note: Address information is per channel base.
KEY TIMING PARAMETERS
Note: Other clock frequencies/data rates supported; please
refer to AC timing tables.
Copyright © 2020 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 ex-
pected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Integrated Silicon
Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
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