IS61LV3216-12T Integrated Silicon Solution, IS61LV3216-12T Datasheet

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IS61LV3216-12T

Manufacturer Part Number
IS61LV3216-12T
Description
Manufacturer
Integrated Silicon Solution
Datasheet

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IS61LV3216
FEATURES
• High-speed access time: 10, 12, 15, and 20 ns
• CMOS low power operation
• TTL compatible interface levels
• Single 3.3V ± 10% power supply
• Fully static operation: no clock or refresh
• Three state outputs
• Industrial temperature available
• Available in 44-pin 400-mil SOJ package and
FUNCTIONAL BLOCK DIAGRAM
ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any
errors which may appear in this publication. © Copyright 2001, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. A
04/17/01
32K x 16 LOW VOLTAGE CMOS STATIC RAM
— 150 mW (typical) operating
— 150 µW (typical) standby
required
44-pin TSOP (Type 2)
Lower Byte
Upper Byte
I/O8-I/O15
I/O0-I/O7
A0-A14
VCC
GND
OE
WE
CE
UB
LB
DECODER
CIRCUIT
CONTROL
CIRCUIT
DATA
I/O
DESCRIPTION
The
organized as 32,768 words by 16 bits. It is fabricated using
ISSI
able process coupled with innovative circuit design tech-
niques, yields fast access times with low power consumption.
When CE is HIGH (deselected), the device assumes a standby
mode at which the power dissipation can be reduced down
with CMOS input levels.
Easy memory expansion is provided by using Chip Enable
and Output Enable inputs, CE and OE. The active LOW Write
Enable (WE) controls both writing and reading of the memory.A
data byte allows Upper Byte (UB) and Lower Byte (LB) access.
The IS61LV3216 is packaged in the JEDEC standard 44-pin
400-mil SOJ and 44-pin TSOP (Type 2).
's high-performance CMOS technology. This highly reli-
ISSI
IS61LV3216 is a high-speed, 512K static RAM
MEMORY ARRAY
COLUMN I/O
32K x 16
NOVEMBER 1997
®
1

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IS61LV3216-12T Summary of contents

Page 1

... Output Enable inputs, CE and OE. The active LOW Write Enable (WE) controls both writing and reading of the memory.A data byte allows Upper Byte (UB) and Lower Byte (LB) access. The IS61LV3216 is packaged in the JEDEC standard 44-pin 400-mil SOJ and 44-pin TSOP (Type 2). DECODER MEMORY ARRAY ...

Page 2

... IS61LV3216 PIN CONFIGURATIONS 44-Pin SOJ A14 A13 A12 A11 I/ I/O15 I/ I/O14 I/ I/O13 I/ I/O12 Vcc 11 34 GND GND 12 33 Vcc I/ I/O11 I/ I/O10 I/ I/ A10 ...

Page 3

... IS61LV3216 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply Voltage with Respect to GND CC V Terminal Voltage with Respect to GND TERM T Storage Temperature STG P Power Dissipation Output Current (LOW) OUT OPERATING RANGE Range Ambient Temperature Commercial 0°C to +70°C DC ELECTRICAL CHARACTERISTICS Symbol Parameter ...

Page 4

... IS61LV3216 CAPACITANCE (1) Symbol Parameter C Input Capacitance IN C Input/Output Capacitance OUT Note: 1. Tested initially and after any design or process changes that may affect these parameters. READ CYCLE SWITCHING CHARACTERISTICS Symbol Parameter t Read Cycle Time RC t Address Access Time AA t Output Hold Time ...

Page 5

... IS61LV3216 AC WAVEFORMS (Address Controlled) ( READ CYCLE NO. 1 (1,2) ADDRESS D OUT PREVIOUS DATA VALID (1,3) READ CYCLE NO. 2 ADDRESS LZCE LB LZB HIGH-Z D OUT Notes HIGH for a Read Cycle. 2. The device is continuously selected. OE, CE, UB Address is valid prior to or coincident with CE LOW transition. ...

Page 6

... IS61LV3216 WRITE CYCLE SWITCHING CHARACTERISTICS Symbol Parameter t Write Cycle Time Write End t SCE t Address Setup Time AW to Write End t Address Hold from Write End HA t Address Setup Time SA LB, UB Valid to End of Write t PWB WE Pulse Width t PWE t Data Setup to Write End ...

Page 7

... IS61LV3216 AC WAVEFORMS WRITE CYCLE NO. 1 (WE Controlled) ADDRESS CE LB (1) WRITE D IN HIGH-Z D OUT Notes: 1. WRITE is an internally generated signal asserted during an overlap of the LOW states on the CE and WE inputs and at least one of the LB and UB inputs being in the LOW state WRITE = (CE) (LB) = (UB) (WE). Integrated Silicon Solution, Inc. — ...

Page 8

... Integrated Silicon Solution, Inc. is adequately protected under the circumstances. Copyright 1997 Integrated Silicon Solution, Inc. Reproduction in whole or in part, without the prior written consent of Integrated Silicon Solution, Inc., is prohibited. 8 ORDERING INFORMATION Industrial Range: –40°C to +85°C Speed (ns) Order Part No. 12 IS61LV3216-12TI 12 IS61LV3216-12KI 15 IS61LV3216-15TI 15 IS61LV3216-15KI 20 ...

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