CY7C245A-18PC Cypress Semiconductor Corp, CY7C245A-18PC Datasheet

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CY7C245A-18PC

Manufacturer Part Number
CY7C245A-18PC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet

Specifications of CY7C245A-18PC

Density
16Kb
Supply Current
120mA
Pin Count
28
Mounting
Through Hole
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C245A-18PC
Manufacturer:
CY
Quantity:
8
Part Number:
CY7C245A-18PC
Manufacturer:
CYP
Quantity:
2 060
Cypress Semiconductor Corporation
Document #: 38-04007 Rev. *D
Features
Selection Guide
Minimum Address Set-up Time
Maximum Clock to Output
Maximum Operating Current Standard
• Windowed for reprogrammability
• CMOS for optimum speed/power
• High speed
• Low power
• Programmable synchronous or asynchronous output
• On-chip edge-triggered registers
• Programmable asynchronous register (INIT)
• EPROM technology, 100% programmable
• Slim, 300-mil, 24-pin plastic or hermetic DIP
• 5V ±10% V
• TTL-compatible I/O
• Direct replacement for bipolar PROMs
• Capable of withstanding greater than 2001V static
Logic Block Diagram
— 15-ns address set-up
— 10-ns clock to output
— 330 mW (commercial) for -25 ns
— 660 mW (military)
enable
discharge
E/E
INIT
CP
A
S
A
A
A
A
A
A
A
A
A
A
10
7
8
9
0
1
2
3
4
5
6
CC
ADDRESS
DECODER
ADDRESS
ADDRESS
, commercial and military
COLUMN
ROW
D
C
PROGRAMMABLE
Q
ARRAY
PROGRAMMABLE
MULTIPLEXER
2K x 8 Reprogrammable Registered PROM
Commercial
Military
MULTIPLEXER
3901 North First Street
7C245A-15
120
15
10
TRIGGERED
REGISTER
Functional Description
The CY7C245A is a high-performance, 2K x 8, electrically
programmable, read-only memory packaged in a slim 300-mil
plastic or hermetic DIP. The ceramic package may be
equipped with an erasure window; when exposed to UV light
the PROM is erased and can then be reprogrammed. The
memory cells utilize proven EPROM floating-gate technology
and byte-wide intelligent programming algorithms.
The CY7C245A replaces bipolar devices and offers the advan-
tages of lower power, reprogrammability, superior perfor-
mance and high programming yield. The EPROM cell requires
only 12.5V for the supervoltage, and low current requirements
allow gang programming. The EPROM cells allow each
memory location to be tested 100%, because each location is
written into, erased, and repeatedly exercised prior to encap-
sulation. Each PROM is also tested for AC performance to
guarantee that after customer programming the product will
meet AC specification limits.
The CY7C245A has an asynchronous initialize function (INIT).
This function acts as a 2049th 8-bit word loaded into the
on-chip register. It is user programmable with any desired
word, or may be used as a PRESET or CLEAR function on the
outputs. INIT is triggered by a low level, not an edge.
EDGE-
8-BIT
CP
7C245A-18
120
120
18
12
San Jose
O
O
O
O
O
O
O
O
7
6
5
4
3
2
1
0
7C245A-25
,
LCC/PLCC (Opaque only) Top View
CA 95134
120
25
12
90
NC
Pin Configurations
O
A
A
A
A
A
GND
4
3
2
1
0
0
O
O
O
A
A
A
A
A
A
A
A
Revised November 4, 2003
7
5
4
1
0
0
1
2
6
3
2
5
6
7
8
9
10
11
DIP Top View
12
4
1
2
3
4
5
6
7
8
9
10
11
12
1314151617
3 2 1
7C245A-35
28
120
CY7C245A
27
35
15
90
24
23
22
21
20
19
18
17
16
15
14
13
18
26
408-943-2600
25
24
23
22
21
20
19
E/E
V
A
A
A
INIT
CP
O
O
O
O
O
CC
8
9
10
A
INIT
E/E
CP
NC
O
O
7
6
5
4
3
10
7
6
S
S
Unit
mA
mA
ns
ns

Related parts for CY7C245A-18PC

CY7C245A-18PC Summary of contents

Page 1

... Cypress Semiconductor Corporation Document #: 38-04007 Rev Reprogrammable Registered PROM Functional Description The CY7C245A is a high-performance electrically programmable, read-only memory packaged in a slim 300-mil plastic or hermetic DIP. The ceramic package may be equipped with an erasure window; when exposed to UV light the PROM is erased and can then be reprogrammed. The memory cells utilize proven EPROM floating-gate technology and byte-wide intelligent programming algorithms ...

Page 2

... This unique feature allows the CY7C245A decoders and sense amplifiers to access the next location while previously addressed data remains stable on the outputs. ...

Page 3

... IHP – – ILP – – LCC/PLCC (Opaque Only) Top View VFY PGM Figure 1. Programming Pinouts Switching Characteristics Subgroups Cypress Number CY7C245A [1] Pin Function INIT PGM VFY ILP IHP IHP ILP IHP IHP ILP IHP ILP IHP ILP IHP IHP ...

Page 4

... V = Max., Com’ OUT Mil Description Test Conditions ° MHz 5.0V CC CY7C245A Ambient Temperature 0°C to +70°C [3] −55°C to +125°C –40° +85°C 7C245A-25 7C245A-35 7C245A-15 7C245A-18 7C245A-45 Min. Max. Min. Max. Min. 2.4 2.4 2.4 0.4 0.4 2 ...

Page 5

... Applies only when the asynchronous (E) function is used. Document #: 38-04007 Rev 250Ω 167Ω INCLUDING JIG AND SCOPE (b) High Z Load 2.0V [4, 5] 7C245A-15 7C245A-18 Min. Max. Min. Max [ [ [ CY7C245A ALL INPUT PULSES 3.0V 90% GND 10 ≤ 7C245A-35 7C245A-25 7C245A-35 Min. Max. Min. Max. Min ...

Page 6

... Switching Waveforms A − SES t PWC CP O − INIT t PWI Document #: 38-04007 Rev SES HES SES t HES t t PWC PWC t t PWC PWC t t HZC COS t RI CY7C245A HES t PWC HZE Page DOE ...

Page 7

... Ordering Information Speed (ns (mA 120 CY7C245A-15JC 15 10 120 CY7C245A-15JI 18 12 120 CY7C245A-18JC CY7C245A-18PC CY7C245A-18WC Document #: 38-04007 Rev. *D NORMALIZED SUPPLY CURRENT vs. AMBIENT TEMPERATURE 1.2 1.1 1.0 0.9 0.8 −55 25 6.0 AMBIENT TEMPERATURE (°C) NORMALIZED SET-UP TIME vs. SUPPLYVOLTAGE 1.2 1.0 0.8 0.6 T =25° ...

Page 8

... CY7C245A-18DMB CY7C245A-18QMB CY7C245A-18WMB CY7C245A-25PC CY7C245A-25WC 90 CY7C245A-25JC CY7C245A-25SC CY7C245A-35WC 90 CY7C245A-35JC 120 CY7C245A-35DMB CY7C245A-35QMB Package Diagrams Document #: 38-04007 Rev. *D Ordering Package Code Type D14 24-Lead (300-Mil) CerDIP Q64 28-Pin Windowed Leadless Chip Carrier W14 24-Lead (300-Mil) Windowed CerDIP P13 24-Lead (300-Mil) Molded DIP ...

Page 9

... Package Diagrams (continued) Document #: 38-04007 Rev. *D 28-Lead Plastic Leaded Chip Carrier J64 24-Lead (300-Mil) PDIP P13 CY7C245A 51-85001-*A 51-85013-*B Page ...

Page 10

... SOIC S13 PIN DIMENSIONS IN INCHES[MM] * 0.394[10.007] REFERENCE JEDEC MO-119 0.419[10.642] 0.291[7.391] 0.300[7.620] PACKAGE WEIGHT 0.65gms 24 0.026[0.660] 0.032[0.812] SEATING PLANE 0.092[2.336] 0.105[2.667] 0.004[0.101] * 0.004[0.101] 0.0118[0.299] CY7C245A 51-80102-** MIN. MAX. PART # S24.3 STANDARD PKG. SZ24.3 LEAD FREE PKG. * 0.0091[0.231] 0.015[0.381] 0.0125[0.317] 51-85025-*B 0.050[1.270] Page ...

Page 11

... 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) Windowed CerDIP W14 MIL-STD-1835 D-9 Config. A CY7C245A 51-80086-** Page ...

Page 12

... Document History Page Document Title: CY7C245A Reprogrammable Registered PROM Document Number: 38-04007 REV. ECN NO. Issue Date ** 113863 3/6/02 *A 118894 10/09/02 *B 122248 12/27/02 *C 130688 10/30/03 *D 130942 11/10/03 Document #: 38-04007 Rev. *D Orig. of Change DSG Changed from Spec number: 38-00074 to 38-04007 GBI Updated ordering information ...

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