CY7C235A-30PC Cypress Semiconductor Corp, CY7C235A-30PC Datasheet

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CY7C235A-30PC

Manufacturer Part Number
CY7C235A-30PC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheets

Specifications of CY7C235A-30PC

Density
8Kb
Access Time (max)
30ns
Supply Current
90mA
Pin Count
24
Mounting
Through Hole
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C235A-30PC
Manufacturer:
TEXAS
Quantity:
25
Part Number:
CY7C235A-30PC
Manufacturer:
CYP
Quantity:
600
Part Number:
CY7C235A-30PC
Manufacturer:
CYP
Quantity:
20 000
1CY7C235A
Features
Selection Guide
Cypress Semiconductor Corporation
Document #: 38-04002 Rev. *B
Minimum Address Set-Up Time
Maximum Clock to Output
Maximum Operating
Current
• CMOS for optimum speed/power
• High speed
• Low power
• Synchronous and asynchronous output enables
• On-chip edge-triggered registers
• Programmable asynchronous registers (INIT)
• EPROM technology, 100% programmable
• Slim, 300-mil, 24-pin plastic or hermetic DIP or 28-pin
• 5V 10% V
• TTL-compatible I/O
• Direct replacement for bipolar PROMs
LCC and PLCC
Logic Block Diagram
— 25 ns address set-up
— 12 ns clock to output
— 495 mW (Commercial)
— 660 mW (Military)
INIT
A
A
A
A
A
A
A
A
A
A
9
8
7
6
5
4
3
2
1
0
CP
E
S
E
DECODER
ADDRESS
ADDRESS
ADDRESS
COLUMN
CC
ROW
, commercial and military
PROGRAMMABLE
ARRAY
Commercial
Military
MUL TIPLEXER
3901 North First Street
7C235A-25
25
12
90
TRIGGERED
REGISTER
EDGE-
8-BIT
CP
Functional Description
The CY7C235A is a high-performance 1024-word by 8-bit
electrically programmable read only memory packaged in a
slim 300-mil plastic or hermetic DIP, 28-pin leadless chip
carrier, or 28-pin plastic leaded chip carrier. The memory cells
utilize proven EPROM floating gate technology and byte-wide
intelligent programming algorithms.
The CY7C235A replaces bipolar devices pin for pin and offers
the advantages of lower power, superior performance, and
high programming yield. The EPROM cell requires only 12.5V
for the supervoltage, and low current requirements allow for
gang programming. The EPROM cells allow for each memory
location to be tested 100%, as each location is written into,
erased, and repeatedly exercised prior to encapsulation. Each
PROM is also tested for AC performance to guarantee that the
product will meet AC specification limits after customer
programming.
• Capable of withstanding greater than 2001V static
discharge
7C235A-30
30
15
90
1K x 8 Registered PROM
San Jose
O
O
O
O
O
O
O
O
7
6
5
4
3
2
1
0
GND
NC
O
A
A
A
A
A
4
3
2
1
0
0
Pin Configuration
O
O
O
A
A
A
A
A
A
A
A
7
6
5
4
3
2
1
0
0
1
2
5
6
7
8
9
10
11
7C235A-40
LCC/PLCC
12
1
2
3
4
5
6
7
8
9
10
11
12
4
Top View
Top View
CA 95134
1314151617
3 2 1
DIP
120
40
20
90
Revised December 27, 2002
28
24
23
22
21
20
19
18
17
16
15
14
13
27
18
26
E
V
A
A
E
INIT
CP
O
O
O
O
O
25
24
23
22
21
20
19
CC
S
8
9
7
6
5
4
3
E
INIT
E
CP
NC
O
O
S
7
6
CY7C235A
408-943-2600
Unit
mA
mA
ns
ns
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CY7C235A-30PC Summary of contents

Page 1

... The memory cells utilize proven EPROM floating gate technology and byte-wide intelligent programming algorithms. The CY7C235A replaces bipolar devices pin for pin and offers the advantages of lower power, superior performance, and high programming yield. The EPROM cell requires only 12.5V for the supervoltage, and low current requirements allow for gang programming ...

Page 2

... Guaranteed Input Logical LOW Voltage for All [4] Inputs GND < V < Note 5 GND < V < V Output Disabled OUT CC [ Max 0.0V CC OUT mA, Commercial OUT V = Max. CC Military Test Conditions MHz, V =5. CY7C235A 3.0V to +7.0V Ambient Temperature + 10 +125 C 5V 10% Min. Max. Unit 2.4 V 0.4 V 2 +10 A [ ...

Page 3

... The on-chip register timing requirements are similar to those of discrete registers available in the market. The CY7C235A has an asynchronous initialize input (INIT). The initialize function is useful during power-up and time-out sequences and can facilitate implementation of other sophis- ticated functions such as a built-in “ ...

Page 4

... SES HES t t PWC PWC t t PWC PWC t t COS CO programming information, including a listing of software packages, please see the PROM Programming Information located at the end of this section. Programming algorithms can be obtained from any Cypress representative. CY7C235A 7C235A-40 Max. Min. Max. Unit ...

Page 5

... ILP IHP IHP ILP ILP ILP IHP LCC/PLCC Top View VFY PGM 1314151617 Figure 1. Programming Pinouts CY7C235A [ INIT VFY High High Init Byte IHP IHP ILP IHP High Z IHP IHP IHP IHP IHP IHP Zeros ILP IHP VFY PGM Page [+] Feedback ...

Page 6

... TYPICAL ACCESS TIME CHANGE vs. OUTPUT LOADING 30.0 25.0 20.0 15.0 10.0 T = =4.5V CC 0.0 0 200 400 600 800 1000 CAPACITANCE (pF) CY7C235A CLOCK TO OUTPUT TIME vs 1.6 1.4 1.2 1.0 0 0.6 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V) NORMALIZED SET-UP TIME vs. TEMPERATURE 1.6 1 ...

Page 7

... Ordering Information Speed (ns) Package t t Ordering Code Name CY7C235A-25PC P13 30 15 CY7C235A-30JC J64 40 20 CY7C235A-40PC P13 CY7C235A-40DMB D14 CY7C235A-40LMB L64 MILITARY SPECIFICATIONS Group A Subgroup Testing DC Characteristics Parameter Subgroups Package Diagrams Document #: 38-04002 Rev. *B Package Type 24-Lead (300-Mil) Molded DIP 28-Lead Plastic Leaded Chip Carrier ...

Page 8

... Package Diagrams (continued) Document #: 38-04002 Rev. *B 28-Lead Plastic Leaded Chip Carrier J64 28-Square Leadless Chip Carrier L64 MIL-STD-1835 C-4 CY7C235A 51-85001-*A 51-80051-** Page [+] Feedback ...

Page 9

... The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. 24-Lead (300-Mil) Molded DIP P13 CY7C235A 51-85013-A Page ...

Page 10

... Document History Page Document Title: CY7C235A Registered PROM Document Number: 38-04002 Issue Orig. of REV. ECN NO. Date Change ** 113857 03/06/02 *A 118893 10/09/02 *B 122243 12/27/02 Document #: 38-04002 Rev. *B Description of Change DSG Change from Spec number: 38-00229 to 38-04002 GBI Update ordering information RBI Add power up requirements to maximum ratings information. ...

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