IS61LV12816-12T Integrated Silicon Solution, IS61LV12816-12T Datasheet

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IS61LV12816-12T

Manufacturer Part Number
IS61LV12816-12T
Description
Manufacturer
Integrated Silicon Solution
Datasheet

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IS61LV12816-12T
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IS61LV12816
128K x 16 HIGH-SPEED CMOS STATIC RAM
WITH 3.3V SUPPLY
FEATURES
• High-speed access time: 8, 10, 12, and 15 ns
• CMOS low power operation
• TTL and CMOS compatible interface levels
• Single 3.3V ± 10% power supply
• Fully static operation: no clock or refresh
• Three state outputs
• Data control for upper and lower bytes
• Industrial temperature available
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 2000, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc. — 1-800-379-4774
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. A
Rev. A
11/30/00
11/30/00
required
Lower Byte
Upper Byte
I/O8-I/O15
I/O0-I/O7
A0-A16
VCC
GND
WE
CE
OE
UB
LB
DECODER
CIRCUIT
CONTROL
CIRCUIT
DATA
I/O
DESCRIPTION
The
RAM organized as 131,072 words by 16 bits. It is fabricated
using
reliable process coupled with innovative circuit design
techniques, yields access times as fast as 8 ns 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 IS61LV12816 is packaged in the JEDEC standard 44-pin
400-mil SOJ, 44-pin TSOP, 44-pin LQFP, and 48-pin mini
BGA (6mm x 8mm).
ISSI
ISSI
IS61LV12816 is a high-speed, 2,097,152-bit static
's high-performance CMOS technology. This highly
MEMORY ARRAY
COLUMN I/O
128K x 16
ISSI
NOVEMBER 2000
®
1
1

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IS61LV12816-12T 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 IS61LV12816 is packaged in the JEDEC standard 44-pin 400-mil SOJ, 44-pin TSOP, 44-pin LQFP, and 48-pin mini BGA (6mm x 8mm). DECODER ...

Page 2

... IS61LV12816 PIN CONFIGURATIONS 44-Pin SOJ ( 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/ A16 18 27 ...

Page 3

... IS61LV12816 PIN DESCRIPTIONS A0-A16 Address Inputs I/O0-I/O15 Data Inputs/Outputs CE Chip Enable Input OE Output Enable Input WE Write Enable Input LB Lower-byte Control (I/O0-I/O7) UB Upper-byte Control (I/O8-I/O15 Connection Vcc Power GND Ground ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Power Supply Voltage Relative to GND CC V Terminal Voltage with Respect to GND ...

Page 4

... IS61LV12816 TRUTH TABLE WE Mode Not Selected X Output Disabled H X Read Write POWER SUPPLY CHARACTERISTICS Symbol Parameter Test Conditions = Max Vcc Operating Supply Current mA Max. OUT I TTL Standby V = Max Current • V (TTL Inputs) ...

Page 5

... IS61LV12816 (1) CAPACITANCE 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 6

... IS61LV12816 AC WAVEFORMS (1,2) (Address Controlled) ( READ CYCLE NO. 1 ADDRESS D OUT PREVIOUS DATA VALID READ CYCLE NO. 2 (1,3) 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 7

... IS61LV12816 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 (OE = HIGH PWE WE Pulse Width (OE = LOW) ...

Page 8

... IS61LV12816 (1,2) (CE Controlled HIGH or LOW) WRITE CYCLE NO. 1 ADDRESS UB DATA UNDEFINED OUT VALID ADDRESS t SCE PWE1 t PWE2 t PBW t HZWE HIGH DATA VALID IN Integrated Silicon Solution, Inc. — 1-800-379-4774 ISSI ® LZWE t HD UB_CEWR1.eps Rev. A ...

Page 9

... IS61LV12816 (1) (WE Controlled HIGH during Write Cycle) WRITE CYCLE NO. 2 ADDRESS OE CE LOW UB DATA UNDEFINED OUT D IN WRITE CYCLE NO. 3 (WE Controlled LOW During Write Cycle) ADDRESS LOW OE CE LOW UB DATA UNDEFINED OUT D IN Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev ...

Page 10

... IS61LV12816 (LB, UB Controlled, Back-to-Back Write) WRITE CYCLE NO. 4 ADDRESS OE CE LOW WE UB HZWE D OUT DATA UNDEFINED D IN Notes: 1. The internal Write time is defined by the overlap LOW, UB and/ LOW, and WE = LOW. All signals must be in valid states to initiate a Write, but any can be deasserted to terminate the Write. The referenced to the rising or falling edge of the signal that terminates the Write ...

Page 11

... IS61LV12816-10KI 400-mil Plastic SOJ IS61LV12816-10LQI LQFP IS61LV12816-10TI Plastic TSOP 12 IS61LV12816-12BI mini BGA (6mm x 8mm) IS61LV12816-12KI 400-mil Plastic SOJ IS61LV12816-12LQI LQFP IS61LV12816-12TI Plastic TSOP 15 IS61LV12816-15BI mini BGA (6mm x 8mm) IS61LV12816-15KI 400-mil Plastic SOJ IS61LV12816-15LQI LQFP IS61LV12816-15TI Plastic TSOP Integrated Silicon Solution, Inc. ...

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