IS61C25616AL Integrated Silicon Solution, Inc., IS61C25616AL Datasheet

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IS61C25616AL

Manufacturer Part Number
IS61C25616AL
Description
256k X 16 High-speed Cmos Static Ram
Manufacturer
Integrated Silicon Solution, Inc.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IS61C25616AL-10TLI
Manufacturer:
ISSI
Quantity:
20 000
IS61C25616AL IS61C25616AS
IS64C25616AL IS64C25616AS
256K x 16 HIGH-SPEED CMOS STATIC RAM
FEATURES
HIGH SPEED: (IS61/64C25616AL)
LOW POWER: (IS61/64C25616AS)
• TTL compatible interface levels
• Single 5V ± 10% power supply
• Fully static operation: no clock or refresh
• Available in 44-pin SOJ package and
• Commercial, Industrial and Automotive tempera-
• Lead-free available
FUNCTIONAL BLOCK DIAGRAM
Integrated Silicon Solution, Inc. — www.issi.com
Rev. C
03/21/2008
Copyright © 2006 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.
required
44-pin TSOP (Type II)
ture ranges available
• High-speed access time: 10ns, 12 ns
• Low Active Power: 150 mW (typical)
• Low Standby Power: 10 mW (typical)
• High-speed access time: 25 ns
• Low Active Power: 75 mW (typical)
• Low Standby Power: 1 mW (typical)
CMOS standby
CMOS standby
Lower Byte
Upper Byte
I/O8-I/O15
I/O0-I/O7
A0-A17
VDD
GND
WE
CE
OE
UB
LB
DECODER
CIRCUIT
CONTROL
CIRCUIT
DATA
I/O
DESCRIPTION
The
high-speed, 4,194,304-bit static RAMs organized as 262,144
words by 16 bits. They are fabricated using
performance CMOS technology. This highly reliable process
coupled with innovative circuit design techniques, yields
access times as fast as 12 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 IS61C25616AL/AS and IS64C25616AL/AS are pack-
aged in the JEDEC standard 44-pin 400-mil SOJ and 44-pin
TSOP (Type II).
ISSI
MEMORY ARRAY
IS61C25616AL/AS and IS64C25616AL/AS are
COLUMN I/O
256K x 16
MARCH 2008
ISSI
's high-
1

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IS61C25616AL 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 IS61C25616AL/AS and IS64C25616AL/AS are pack- aged in the JEDEC standard 44-pin 400-mil SOJ and 44-pin TSOP (Type II). A0-A17 ...

Page 2

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS PIN CONFIGURATIONS 44-Pin SOJ A15 A14 A13 A12 A11 I/ I/O15 I/ I/O14 I/ I/O13 I/ I/O12 VDD 11 34 GND GND 12 33 VDD I/ I/O11 I/ I/O10 I/ I/O9 I/ ...

Page 3

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS TRUTH TABLE Mode Not Selected X Output Disabled H X Read Write ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Terminal Voltage with Respect to GND TERM T Storage Temperature STG P Power Dissipation Output Current (LOW) ...

Page 4

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS OPERATING RANGE: HIGH SPEED OPTION (IS61/64C25616AL) Range Ambient Temperature Commercial 0°C to +70°C Industrial -40°C to +85°C Automotive -40°C to +125°C OPERATING RANGE: LOW POWER OPTION (IS61/64C25616AS) Range Ambient Temperature Commercial 0°C to +70°C Industrial -40°C to +85°C Automotive -40° ...

Page 5

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS HIGH SPEED OPTION (IS61/64C25616AL) POWER SUPPLY CHARACTERISTICS Symbol Parameter Test Conditions I V Operating Supply Current I OUT I V Dynamic Operating Supply Current I OUT I TTL Standby Current (TTL Inputs ≥ CMOS Standby ...

Page 6

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS READ CYCLE SWITCHING CHARACTERISTICS Symbol Parameter t Read Cycle Time RC t Address Access Time AA t Output Hold Time OHA CE Access Time t ACE OE Access Time t DOE OE to High-Z Output t (2) HZOE OE to Low-Z Output t (2) LZOE CE to High-Z Output ...

Page 7

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS AC WAVEFORMS (Address Controlled) ( (1,2) READ CYCLE NO. 1 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 8

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS 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 ...

Page 9

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS AC WAVEFORMS Controlled) WE WRITE CYCLE NO. 1 (WE ADDRESS UB DATA UNDEFINED OUT D IN 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. ...

Page 10

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS WRITE CYCLE NO. 2 (OE is HIGH During Write Cycle) ADDRESS OE CE LOW UB DATA UNDEFINED OUT D IN WRITE CYCLE NO. 3 (OE is LOW During Write Cycle) ADDRESS OE LOW CE LOW UB DATA UNDEFINED OUT D IN Notes: 1 ...

Page 11

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS WRITE CYCLE NO. 4 (UB/LB Back to Back Write) ADDRESS OE CE LOW WE UB HZWE D OUT DATA UNDEFINED D IN Integrated Silicon Solution, Inc. — www.issi.com — Rev. C 03/21/2008 ADDRESS 1 ADDRESS PBW PBW WORD 1 WORD 2 ...

Page 12

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS DATA RETENTION SWITCHING CHARACTERISTICS (HIGH SPEED) (IS61/64C25616AL) Symbol Parameter V V for Data Retention Data Retention Current DR t Data Retention Setup Time SDR t Recovery Time RDR Note: 1. Typical Values are measured 5V DATA RETENTION WAVEFORM (CE ...

Page 13

... IS61C25616AL IS61C25616AS IS64C25616AL IS64C25616AS DATA RETENTION SWITCHING CHARACTERISTICS (LOW POWER) (IS61/64C25616AS) Symbol Parameter V V for Data Retention Data Retention Current DR t Data Retention Setup Time SDR t Recovery Time RDR Note: 1. Typical Values are measured 5V DATA RETENTION WAVEFORM (CE ...

Page 14

... Commercial Range: 0°C to +70°C Speed (ns) Order Part No. 10 IS61C25616AL-10TL Industrial Range: –40°C to +85°C Speed (ns) Order Part No. 10 IS61C25616AL-10KI IS61C25616AL-10KLI IS61C25616AL-10TI IS61C25616AL-10TLI Automotive Range: –40°C to +125°C Speed (ns) Order Part No. 12 IS64C25616AL-12KA3 IS64C25616AL-12TA3 IS64C25616AL-12CTLA3 LOW POWER ORDERING INFORMATION: IS61C25616AS Industrial Range: – ...

Page 15

... BSC Copyright © 2003 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. — ...

Page 16

... BSC Copyright © 2003 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 ...

Page 17

... Copyright © 2003 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. — ...

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