CY62256LL-70SNCT Cypress Semiconductor Corp, CY62256LL-70SNCT Datasheet

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CY62256LL-70SNCT

Manufacturer Part Number
CY62256LL-70SNCT
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet

Specifications of CY62256LL-70SNCT

Density
256Kb
Access Time (max)
70ns
Sync/async
Asynchronous
Architecture
Not Required
Clock Freq (max)
Not RequiredMHz
Operating Supply Voltage (typ)
5V
Address Bus
15b
Package Type
SNC N
Operating Temp Range
0C to 70C
Number Of Ports
1
Supply Current
50mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
28
Word Size
8b
Number Of Words
32K
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY62256LL-70SNCT
Manufacturer:
ESMT
Quantity:
166
Part Number:
CY62256LL-70SNCT
0
Cypress Semiconductor Corporation
Document #: 38-05248 Rev. *F
Features
Note:
1. For best practice recommendations, please refer to the Cypress application note “System Design Guidelines” on http://www.cypress.com.
• High speed
• Temperature Ranges
• Voltage range
• Low active power and standby power
• Easy memory expansion with CE and OE features
• TTL-compatible inputs and outputs
• Automatic power-down when deselected
• CMOS for optimum speed/power
• Available in a Pb-free and non Pb-free standard 28-pin
Logic Block Diagram
— 55 ns
— Commercial: 0°C to 70°C
— Industrial: –40°C to 85°C
— Automotive: –40°C to 125°C
— 4.5V – 5.5V
narrow SOIC, 28-pin TSOP-1, 28-pin Reverse TSOP-1
and 28-pin DIP packages
CE
WE
OE
A
A
A
A
A
A
A
A
A
10
9
8
7
6
5
4
3
2
198 Champion Court
INPUTBUFFER
DECODER
32K × 8
ARRAY
COLUMN
Functional Description
The CY62256 is a high-performance CMOS static RAM
organized as 32K words by 8 bits. Easy memory expansion is
provided by an active LOW chip enable (CE) and active LOW
output enable (OE) and Tri-state drivers. This device has an
automatic
consumption by 99.9% when deselected.
An active LOW write enable signal (WE) controls the
writing/reading operation of the memory. When CE and WE
inputs are both LOW, data on the eight data input/output pins
(I/O
addressed by the address present on the address pins (A
through A
the device and enabling the outputs, CE and OE active LOW,
while WE remains inactive or HIGH. Under these conditions,
the contents of the location addressed by the information on
address pins are present on the eight data input/output pins.
The input/output pins remain in a high-impedance state unless
the chip is selected, outputs are enabled, and write enable
(WE) is HIGH.
POWER
DOWN
0
through I/O
256K (32K x 8) Static RAM
14
San Jose
). Reading the device is accomplished by selecting
power-down
7
) is written into the memory location
,
CA 95134-1709
feature,
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
[1]
0
1
2
3
4
5
6
7
Revised August 3, 2006
reducing
CY62256
408-943-2600
the
power
0
[+] Feedback

Related parts for CY62256LL-70SNCT

CY62256LL-70SNCT Summary of contents

Page 1

... Note: 1. For best practice recommendations, please refer to the Cypress application note “System Design Guidelines” on http://www.cypress.com. Cypress Semiconductor Corporation Document #: 38-05248 Rev. *F 256K (32K x 8) Static RAM Functional Description The CY62256 is a high-performance CMOS static RAM organized as 32K words by 8 bits. Easy memory expansion is provided by an active LOW chip enable (CE) and active LOW output enable (OE) and Tri-state drivers ...

Page 2

... Product Portfolio Product Min. CY62256L Com’l/Ind’l 4.5 CY62256LL Commercial CY62256LL Industrial CY62256LL Automotive Pin Configurations Narrow SOIC Top View I/O 5 I I/O 3 GND 15 14 Pin Definitions Pin Number Type 1–10, 21, 23–26 Input 11–13, 15–19, Input/Output 27 Input/Control ...

Page 3

Maximum Ratings (Above which the useful life may be impaired. For user guide- lines, not tested.) Storage Temperature ................................. –65°C to +150°C Ambient Temperature with Power Applied............................................. –55°C to +125°C Supply Voltage to Ground Potential (Pin 28 to Pin 14) ...

Page 4

AC Test Loads and Waveforms R1 1800Ω 5V OUTPUT OUTPUT R2 100 pF 990Ω INCLUDING JIG AND SCOPE (a) Equivalent to: Data Retention Characteristics Parameter Description V V for Data Retention Data Retention Current CCDR [5] t ...

Page 5

Switching Characteristics Over the Operating Range Parameter Read Cycle t Read Cycle Time RC t Address to Data Valid AA t Data Hold from Address Change OHA t CE LOW to Data Valid ACE t OE LOW to Data Valid ...

Page 6

Switching Waveforms Read Cycle No. 1 (Address Transition Controlled) ADDRESS DATA OUT PREVIOUS DATA VALID [13, 14] Read Cycle No. 2 (OE Controlled ACE OE t LZOE HIGH IMPEDANCE DATA OUT t LZCE SUPPLY ...

Page 7

Switching Waveforms (continued) [10, 15, 16] Write Cycle No. 2 (CE Controlled) ADDRESS CE WE DATA I/O Write Cycle No. 3 (WE Controlled, OE LOW) ADDRESS DATA I/O NOTE 17 t HZWE Document #: 38-05248 Rev. ...

Page 8

Typical DC and AC Characteristics NORMALIZED SUPPLY CURRENT vs. SUPPLY VOLTAGE 1.4 1 1.0 0 25°C A 0.4 0 0.0 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V) NORMALIZED ...

Page 9

Typical DC and AC Characteristics TYPICAL POWER-ON CURRENT vs. SUPPLY VOLTAGE 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.0 1.0 2.0 3.0 4.0 5.0 SUPPLY VOLTAGE (V) Truth Table Inputs/Outputs High ...

Page 10

... CY62256LL−70PC CY62256LL−70PXC CY62256L−70SNC CY62256L−70SNXC CY62256LL−70SNC CY62256LL−70SNXC CY62256LL−70ZC CY62256LL−70ZXC CY62256L–70SNI CY62256L–70SNXI CY62256LL−70SNI CY62256LL−70SNXI CY62256LL−70ZXI CY62256LL−70ZRI CY62256LL−70ZRXI Please contact your local Cypress sales representative for availability of these parts Document #: 38-05248 Rev ...

Page 11

Package Diagrams 28-pin (600-mil) Molded DIP (51-85017 0.155 0.200 0.115 0.160 0.090 0.110 28-pin (300-mil) SNC (Narrow Body) (51-85092) Document #: 38-05248 Rev 0.530 0.550 28 0.070 0.090 SEATING PLANE 1.380 1.480 0.140 0.195 0.015 0.060 ...

Page 12

Package Diagrams (continued) 28-pin Thin Small Outline Package Type 13.4 mm) (51-85071) Document #: 38-05248 Rev. *F CY62256 51-85071-*G Page [+] Feedback ...

Page 13

... Document #: 38-05248 Rev. *F © Cypress Semiconductor Corporation, 2006. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress ...

Page 14

... Corrected package description in Ordering Information table Added Automotive product information Added Pb-free packages on page# 10 Changed address of Cypress Semiconductor Corporation on Page# 1 from “3901 North First Street” to “198 Champion Court” Added CY62256L–70SNXI package in the Ordering Information on Page # 10 Updated Ordering Information table ...

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