IS61C3216AL JANUARY 2020 32K x 16 HIGH-SPEED CMOS STATIC RAM FEATURES DESCRIPTION The ISSI IS61C3216AL is high-speed, 512Kb static RAMs High-speed access time: 12 ns organized as 32,768 words by 16 bits. They are fabricated Low Active Power: 175 mW (typical) using ISSI s high-performance CMOS technology. This highly Low Standby Power: 1 mW (typical) reliable process coupled with innovative circuit design tech- niques, yields access times as fast as 12 ns with low power CMOS standby consumption. TTL compatible interface levels Single 5V 10% power supply When CE is HIGH (deselected), the device assumes a standby mode at which the power dissipation can be reduced Fully static operation: no clock or refresh down with CMOS input levels. required Available in 44-pin SOJ package and Easy memory expansion is provided by using Chip Enable 44-pin TSOP (Type II) and Output Enable inputs, CE and OE. The active LOW Write Commercial and Industrial temperature ranges Enable (WE) controls both writing and reading of the memory. available A data byte allows Upper Byte (UB) and Lower Byte (LB) access. Lead-free available The IS61C3216AL is packaged in the JEDEC standard 44- pin 400-mil SOJ and 44-pin TSOP (Type II). FUNCTIONAL BLOCK DIAGRAM 32K x 16 A0-A14 DECODER MEMORY ARRAY VDD GND I/O0-I/O7 I/O Lower Byte COLUMN I/O DATA CIRCUIT I/O8-I/O15 Upper Byte CE OE CONTROL WE CIRCUIT UB LB 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. www.issi.com 1-800-379-4774 1 Rev. A1 01/22/2020IS61C3216AL PIN CONFIGURATIONS 44-Pin TSOP (Type II) 44-Pin SOJ NC 1 44 A0 NC 1 44 A0 A14 2 43 A1 A14 2 43 A1 A13 3 42 A2 A13 3 42 A2 A12 4 41 OE A12 4 41 OE A11 5 40 UB A11 5 40 UB CE 6 39 LB CE 6 39 LB I/O0 7 38 I/O15 I/O0 7 38 I/O15 I/O1 8 37 I/O14 I/O1 8 37 I/O14 I/O2 9 36 I/O13 I/O2 9 36 I/O13 I/O3 10 35 I/O12 I/O3 10 35 I/O12 VDD 11 34 GND VDD 11 34 GND GND 12 33 VDD GND 12 33 VDD 32 I/O11 I/O4 13 I/O4 13 32 I/O11 I/O5 14 31 I/O10 I/O5 14 31 I/O10 I/O6 15 30 I/O9 I/O6 15 30 I/O9 I/O7 16 29 I/O8 I/O7 16 29 I/O8 WE 17 28 NC WE 17 28 NC A10 18 27 A3 A10 18 27 A3 A9 19 26 A4 A9 19 26 A4 A8 20 25 A5 A8 20 25 A5 A7 21 24 A6 A7 21 24 A6 NC 22 23 NC NC 22 23 NC PIN DESCRIPTIONS A0-A14 Address Inputs LB Lower-byte Control (I/O0-I/O7) I/O0-I/O15 Data Inputs/Outputs UB Upper-byte Control (I/O8-I/O15) CE Chip Enable Input NC No Connection OE Output Enable Input VDD Power WE Write Enable Input GND Ground 2 Integrated Silicon Solution, Inc. www.issi.com 1-800-379-4774 Rev. A 1 01/22/2020