IS61WV20488FALL IS61/64WV20488FBLL AUGUST 2019 2Mx8 HIGH-SPEED ASYNCHRONOUS CMOS STATIC RAM WITH 3.3V/1.8V SUPPLY FEATURES DESCRIPTION The ISSI IS61/64WV20488FALL/BLL are high-speed, 16M High-speed access time: 8ns, 10ns, 20ns High- performance, low power CMOS process bit static RAMs organized as 2048K words by 8 bits. It is Multiple center power and ground pins for fabricated using ISSI s high-performance CMOS technology. greater noise immunity This highly reliable process coupled with innovative circuit TTL compatible inputs and outputs design techniques, yields high-performance and low power Single power supply consumption devices. 1.65V-2.2V VDD (IS61WV20488FALL) 2.4V-3.6V VDD (IS61/64WV20488FBLL) When CS is HIGH (deselected), the device assumes a standby mode at which the power dissipation can be reduced Packages available : down with CMOS input levels. Easy memory expansion is - 44 pin TSOP (Type II) provided by using Chip Enable and Output Enable inputs. - 48 ball mini BGA (6mm x 8mm) - 54 pin TSOP (Type II) The active LOW Write Enable (WE ) controls both writing and reading of the memory. Industrial and Automotive temperature support The devices are packaged in the JEDEC standard 44-Pin Lead-free available TSOP (TYPE II), 48-pin mini BGA (6mm x 8mm), and 54-Pin Data Control for upper and lower bytes TSOP (TYPE II).. FUNCTIONAL BLOCK DIAGRAM 2048K x 8 MEMORY DECODER A0 A20 ARRAY VDD GND I/ O I/O 0 I/O7 DATA COLUMN /IO CIRCUIT CS or CS1 /CS2 CONTROL OE CIRCUIT WE Copyright 2019 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 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 Integrated Silicon Solution, Inc.- www.issi.com 1 Rev. A1 08/07/2019 IS61WV20488FALL IS61/64WV20488FBLL 48-Pin mini BGA, Single Chip Select 48-Pin mini BGA, Dual Chip Select 1 2 3 4 5 6 1 2 3 4 5 6 A A NC OE A0 A1 A2 NC NC OE A0 A1 A2 CS2 B B NC NC A3 A4 CS I/O0 NC NC A3 A4 CS1 I/O0 C NC NC A5 A6 I/O1 I/O2 C NC NC A5 A6 I/O1 I/O2 D D VSS NC A17 A7 I/O3 VDD VSS NC A17 A7 I/O3 VDD E E VDD NC NC A16 I/O4 VSS VDD NC NC A16 I/O4 VSS F F NC NC A14 A15 I/O5 I/O6 NC NC A14 A15 I/O5 I/O6 G G NC A19 A12 A13 WE I/O7 NC A19 A12 A13 WE I/O7 H H A18 A8 A9 A10 A11 A20 A18 A8 A9 A10 A11 A20 Integrated Silicon Solution, Inc.- www.issi.com 2 Rev. A1 08/07/2019