CY7C185-35SC Cypress Semiconductor Corp, CY7C185-35SC Datasheet

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CY7C185-35SC

Manufacturer Part Number
CY7C185-35SC
Description
8KX8 28-PIN 300 MIL SRAM
Manufacturer
Cypress Semiconductor Corp
Datasheet

Specifications of CY7C185-35SC

Format - Memory
RAM
Memory Type
SRAM - Asynchronous
Memory Size
64K (8K x 8)
Speed
35ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
28-SOJ
Lead Free Status / RoHS Status
Contains lead / RoHS compliant by exemption

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C185-35SC
Manufacturer:
CYP
Quantity:
5 704
Part Number:
CY7C185-35SC
Manufacturer:
CYPRESS
Quantity:
5 704
Part Number:
CY7C185-35SC
Manufacturer:
CY
Quantity:
1 885
Features
Selection Guide
Cypress Semiconductor Corporation
Document #: 38-05043 Rev. *D
Maximum Access Time (ns)
Maximum Operating Current (mA)
Maximum CMOS Standby Current (mA)
Note
1. For guidelines on SRAM system design, please refer to the ‘System Design Guidelines’ Cypress application note, available on the internet at www.cypress.com.
High speed
Fast t
Low active power
Low standby power
CMOS for optimum speed/power
Easy memory expansion with CE
TTL-compatible inputs and outputs
Automatic power down when deselected
Available in non Pb-free 28-pin (300-Mil) Molded SOJ, 28-pin
(300-Mil) Molded SOIC and Pb-free 28-pin (300-Mil) Molded
DIP
Logic Block Diagram
15 ns
715 mW
85 mW
DOE
Description
CE
CE
WE
OE
1
2
A
A
A
A
A
A
A
A
1
2
3
4
5
6
7
8
1
, CE
2
and OE features
COLUMN DECODER
INPUT BUFFER
ARRAY
198 Champion Court
8K x 8
POWER
DOWN
130
-15
Functional Description
The CY7C185
organized as 8192 words by 8 bits. Easy memory expansion is
provided by an active LOW chip enable (CE
chip enable (CE
tri-state drivers. This device has an automatic power down
feature (CE
when deselected. The CY7C185 is in a standard 300-mil-wide
DIP, SOJ, or SOIC package.
An active LOW write enable signal (WE) controls the
writing/reading operation of the memory. When CE
inputs are both LOW and CE
input/output pins (IO
location addressed by the address present on the address pins
(A
selecting the device and enabling the outputs, CE
active LOW, CE
HIGH. Under these conditions, the contents of the location
addressed by the information on address pins are present on the
eight data input or output pins.
The input or output pins remain in a high-impedance state unless
the chip is selected, outputs are enabled, and write enable (WE)
is HIGH. A die coat is used to insure alpha immunity.
15
15
0
through A
64-Kbit (8 K × 8) Static RAM
1
San Jose
or CE
IO
IO
IO
IO
IO
IO
IO
IO
[1]
12
0
1
2
3
4
5
6
7
2
2
). Reading the device is accomplished by
), and active LOW output enable (OE) and
is a high-performance CMOS static RAM
active HIGH, while WE remains inactive or
2
), reducing the power consumption by 70%
0
,
through IO
CA 95134-1709
110
-20
20
15
Pin Configurations
GND
IO
IO
IO
A
A
A
NC
A
A
A
A
A
A 9
10
11
12
4
5
6
7
8
0
1
2
2
DIP/SOJ
is HIGH, data on the eight data
Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
7
) is written into the memory
Revised December 9, 2010
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
WE
CE
A
A
A
OE
A
CE
IO
IO
IO
IO
IO
CC
3
2
1
0
1
2
1
7
6
5
4
3
), an active HIGH
CY7C185
100
-35
408-943-2600
35
15
1
1
and WE
and OE
[+] Feedback

Related parts for CY7C185-35SC

CY7C185-35SC Summary of contents

Page 1

... LOW chip enable (CE chip enable (CE tri-state drivers. This device has an automatic power down feature (CE 1 when deselected. The CY7C185 standard 300-mil-wide DIP, SOJ, or SOIC package. An active LOW write enable signal (WE) controls the writing/reading operation of the memory. When CE inputs are both LOW and CE ...

Page 2

... V –  – 130 , 40  – 0.3V, CC – 0.3V or Test Conditions T = 25 MHz 5.0V CC CY7C185 Ambient Temperature V CC   5V  10 +70 C   5V  10% – +85 C –20 –35 Min Max Min Max 2.4 2.4 0.4 0.4 2 0.3V 2 ...

Page 3

... LZCE1 LZCE2 LOW, CE HIGH, and WE LOW. All 3 signals must be active to initiate a write and either 1 2 CY7C185 ALL INPUT PULSES 90% 90% 10% 10%  THÉVENIN EQUIVALENT 167 OUTPUT 1.73V -20 -35 Min Max Min Max Unit ...

Page 4

... DATA VALID 50 LOW, CE HIGH and WE LOW going HIGH or CE going LOW. The data input setup and hold timing must be referenced to the rising 1 2 CY7C185 DATA VALID t HZOE t HZCE HIGH IMPEDANCE t PD ICC 50% ISB and WE must be LOW and CE must be HIGH 1 2 Page [+] Feedback ...

Page 5

... During this period, the IOs are in the output state and input signals must not be applied. 13. The minimum write cycle time for write cycle #3 (WE controlled, OE LOW) is the sum of t Document #: 38-05043 Rev SCEI SCE2 t PWE t SD DATA VALID SCE1 SA t SCE2 DATA VALID IN and t HZWE CY7C185 [9,11 [11,12,13 Page [+] Feedback ...

Page 6

... Switching Waveforms (continued) Figure 6. Write Cycle No. 3(WE Controlled, OE LOW) ADDRESS DATA IO NOTE 12 t HZWE Note 14 goes HIGH or CE goes LOW simultaneously with WE HIGH, the output remains in a high-impedance state Document #: 38-05043 Rev. *D [11,12,13,14 SCE1 t SCE2 DATA VALID IN CY7C185 LZWE Page [+] Feedback ...

Page 7

... TYPICAL ACCESS TIME CHANGE vs. OUTPUT LOADING 30.0 25.0 20.0 15.0 10.0 V =4. =25C A 5.0 0.0 0 200 400 600 800 1000 CAPACITANCE (pF) CY7C185 OUTPUT SOURCE CURRENT vs. OUTPUT VOLTAGE 120 100 80 V =5. =25 0.0 1.0 2.0 3.0 4.0 OUTPUT VOLTAGE (V) OUTPUT SINK CURRENT vs ...

Page 8

... High High Data Out Data High Z Ordering Information Speed (ns) Ordering Code 15 CY7C185-15VI 20 CY7C185-20PXC 35 CY7C185-35SC Ordering Code Definitions Document #: 38-05043 Rev. *D Address Designators Address Name Mode A4 Deselect/Power Down A5 Deselect/Power A6 Down A7 Read A8 Write A9 Deselect A10 A11 A12 Package Name Package Type 51-85031 ...

Page 9

... Package Diagrams Figure 8. 28-pin (300-Mil) Molded SOIC (51-85026) Document #: 38-05043 Rev. *D Figure 7. 28-pin (300-Mil) PDIP (51-85014) CY7C185 51-85014 *E 51-85026 *E Page [+] Feedback ...

Page 10

... Package Diagrams (continued) Figure 9. 28-pin (300-Mil) Molded SOJ (51-85031) Document #: 38-05043 Rev. *D CY7C185 51-85031 *D Page [+] Feedback ...

Page 11

... Document History Page Document Title: CY7C185, 64-Kbit (8 K × 8) Static RAM Document Number: 38-05043 Orig. of REV. ECN NO. Issue Date Change ** 107145 09/10/01 *A 116470 09/16/02 *B 486744 See ECN *C 2263686 See ECN VKN/AESA Removed 25 ns speed bin *D 3105329 12/09/2010 Document #: 38-05043 Rev. *D Description of Change ...

Page 12

... Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement. Document #: 38-05043 Rev. *D All products and company names mentioned in this document may be the trademarks of their respective holders. cypress.com/go/plc Revised December 9, 2010 CY7C185 PSoC Solutions psoc.cypress.com/solutions PSoC 1 | PSoC 3 ...

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