IS61WV20488ALL IS61/64WV20488BLL 2M x 8 HIGH-SPEED CMOS STATIC RAM June 2014 FEATURES DESCRIPTION High-speed access times: The ISSI IS61WV20488ALL/BLL and 8, 10, 20 ns IS64WV20488BLL are ver y high-speed, low High-perfor mance, low-power CMOS process power, 2M-word by 8-bit CMOS static RAM. The IS61WV20488ALL/BLL and IS64WV20488BLL are fab- Multiple center power and ground pins for ricated using ISSI s high-perfor mance CMOS technol- greater noise immunity ogy. This highly reliable process coupled with innovative Easy memor y expansion with CE and OE op- circuit design techniques, yields higher performance tions and low power consumption devices. CE power-down When CE is HIGH (deselected), the device assumes Fully static operation: no clock or refresh a standby mode at which the power dissipation can be required reduced down with CMOS input levels. TTL compatible inputs and outputs Single power supply The IS61WV20488ALL/BLL and IS64WV20488BLL operate from a single power supply and all inputs are Vdd 1.65V to 2.2V (IS61WV20488ALL) TTL-compatible. speed = 20ns for Vcc = 1.65V to 2.2V Vdd 2.4V to 3.6V (IS61/64WV20488BLL) The IS61WV20488ALL/BLL and IS64WV20488BLL are available in 48 ball mini BGA and 44-pin TSOP (Type II) speed = 10ns for Vcc = 2.4V to 3.6V packages. speed = 8ns for Vcc = 3.3V + 5% Packages available: 48-ball miniBGA (9mm x 11mm) 44-pin TSOP (Type II) Industr ial and Automotive Temperature Suppor t Lead-free available FUNCTIONAL BLOCK DIAGRAM 2M X 8 A0-A20 DECODER MEMORY ARRAY VDD GND I/O COLUMN I/O I/O0-I/O7 DATA CIRCUIT CE CONTROL OE CIRCUIT WE Copyright 2014 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 lat- est 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 reason- ably 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 1-800-379-4774 1 Rev. C 06/23/2014A2 CE I/O1 I/O3 I/O4 I/O5 WE A11 IS61WV20488ALL, IS61/64WV20488BLL PIN CONFIGURATION 48-pin Mini BGA (M ) (9mm x 11mm) 44-pin TSOP (Type II ) 1 2 3 4 5 6 NC 1 44 NC 43 NC NC 2 A0 3 42 A20 A1 4 41 A18 A2 5 40 A17 A3 6 39 A16 A NC OE A0 A1 NC A4 7 38 A15 B NC NC A3 A4 I/O0 CE 8 37 OE I/O0 9 36 I/O7 C NC NC A5 A6 I/O2 I/O1 10 35 I/O6 VDD 11 34 GND GND NC A17 A7 VDD D GND 12 33 VDD VDD NC NC A16 GND E I/O2 13 32 I/O5 I/O3 14 31 I/O4 NC NC A14 A15 I/O6 F 30 WE 15 A14 NC A19 A12 A13 I/O7 G A5 16 29 A13 A6 17 28 A12 A18 A8 A10 A20 A9 H A7 18 27 A11 A8 19 26 A10 A9 20 25 A19 NC 21 24 NC NC 22 23 NC PIN DESCRIPTIONS A0-A20 Address Inputs CE Chip Enable Input OE Output Enable Input WE Wr ite Enable Input I/O0-I/O7 Data Input / Output Vdd Power GND Ground NC No Connection 2 Integrated Silicon Solution, Inc. www.issi.com 1-800-379-4774 Rev. C 06/23/2014