IS61C1024AL IS64C1024AL 128K x 8 HIGH-SPEED CMOS STATIC RAM MAY 2012 DESCRIPTION FEATURES The ISSI IS61C1024AL/IS64C1024AL is a very high- High-speed access time: 12, 15 ns speed, low power, 131,072-word by 8-bit CMOS static Low active power :160 mW (typical) RAMs. They are fabricated using ISSI s high-performance Low standby power :1000 W (typical) CMOS CMOS technology. This highly reliable process coupled with innovative circuit design techniques, yields higher standby performance and low power consumption devices. Output Enable (OE) and two Chip Enable When CE1 is HIGH or CE2 is LOW (deselected), the device (CE1 and CE2) inputs for ease in applications assumes a standby mode at which the power dissipation Fully static operation: no clock or refresh can be reduced by using CMOS input levels. required Easy memory expansion is provided by using two Chip TTL compatible inputs and outputs Enable inputs, CE1 and CE2. The active LOW Write Enable Single 5V (10%) power supply (WE) controls both writing and reading of the memory. Commercial, industrial, and automotive tempera- The IS61C1024AL/IS64C1024AL is available in 32-pin ture ranges available 300-mil SOJ, 32-pin 400-mil SOJ, 32-pin TSOP (Type I, 8x20), and 32-pin sTSOP (Type I, 8 x 13.4) packages. Lead free available FUNCTIONAL BLOCK DIAGRAM 128K x 8 A0-A16 DECODER MEMORY ARRAY VDD GND I/O COLUMN I/O I/O0-I/O7 DATA CIRCUIT CE1 CE2 CONTROL CIRCUIT OE WE Copyright 2011 Integrated Silicon Solution, AllInc. 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 descr Customersibed herein. 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 reason- ably be expected to cause failure of the life support system or to significantly affect its safety or effProductsectiveness 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. D 05/09/2012IS61C1024AL, IS64C1024AL PIN CONFIGURATION PIN CONFIGURATION 32-Pin SOJ 32-Pin TSOP (Type 1) (T) and sTSOP (Type 1) (H) NC 1 32 VDD A11 1 32 OE A16 2 31 A15 A9 2 31 A10 A14 3 30 CE2 A8 3 30 CE1 A12 4 29 WE A13 4 29 I/O7 A7 5 28 A13 WE 5 28 I/O6 A6 6 27 A8 CE2 6 27 I/O5 A5 7 26 A9 A15 7 26 I/O4 A4 8 25 A11 VDD 8 25 I/O3 A3 9 24 OE NC 9 24 GND A2 10 23 A10 A16 10 23 I/O2 A1 11 22 CE1 A14 11 22 I/O1 A0 12 21 I/O7 A12 12 21 I/O0 I/O0 13 20 I/O6 A7 13 20 A0 I/O1 14 19 I/O5 A6 14 19 A1 I/O2 15 18 I/O4 A5 15 18 A2 GND 16 17 I/O3 A4 16 17 A3 PIN DESCRIPTIONS A0-A16 Address Inputs CE1 Chip Enable 1 Input CE2 Chip Enable 2 Input OE Output Enable Input WE Write Enable Input OPERATING RANGE (IS61C1024AL) I/O0-I/O7 Input/Output Range Ambient Temperature Vdd VDD Power Commercial 0C to +70C 5V 10% GND Ground Industrial -40C to +85C 5V 10% OPERATING RANGE (IS64C1024AL) Range Ambient Temperature Vdd Automotive -40C to +125C 5V 10% TRUTH TABLE Mode WE CE1 CE2 OE I/O Operation Vdd Current Not Selected X H X X High-Z Isb 1, Isb 2 (Power-down) X X L X High-Z I sb 1, Isb 2 Output Disabled H L H H High-Z Icc 1, Icc 2 Read H L H L Dout Icc 1, Icc 2 Write L L H X DIn Icc 1, Icc 2 2 Integrated Silicon Solution, Inc. www.issi.com 1-800-379-4774 Rev. D 05/09/2012