CY7C276-25HC Cypress Semiconductor Corp, CY7C276-25HC Datasheet - Page 4

• Manufacturer Part Number: CY7C276-25HC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C276-25HC

• Density: 256Kb
• Access Time (max): 25ns
• Interface Type: Parallel
• Package Type: LCC
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: 0C to 70C
• Mounting: Surface Mount
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Not Compliant

AC Test Loads and Waveforms
Switching Characteristics
Erasure Characteristics
The recommended dose of ultraviolet light for erasure is a
wavelength of 2537 Angstroms for a minimum dose (UV
intensity multiplied by exposure time) of 25 Wsec/cm
ultraviolet lamp with a 12 mW/cm
time would be approximately 35 minutes. The CY7C276
needs to be within 1 inch of the lamp during erasure.
Document #: 38-04004 Rev. *C
OUTPUT
t
t
t
t
t
Equivalent to: THÉ VENIN EQUIVALENT
AA
CSOV
CSOZ
OEV
OEZ
Parameter
INCLUDING
JIG AND
SCOPE
5V
OUTPUT
50 pF
Address to Output Data Valid
CS Active to Output Valid
CS Inactive to High Z Output
OE Active to Output Valid
OE Inactive to High Z Output
(a) Normal Load
R1 500Ω
(658Ω MIL)
200Ω (250ΩMIL)
Description
R2
333Ω
(403Ω
MIL)
2
Over the Operating Range
power rating the exposure
OUTPUT
2.0V (1.9V Mil)
INCLUDING
JIG AND
SCOPE
5V
5 pF
(b) High Z Load
2
R1 500Ω
(658Ω MIL)
. For an
Min.
CY7C276-25
[2,3]
R2
333Ω
(403Ω
MIL)
Permanent damage may result if the EPROM is exposed to
high-intensity UV light for an extended period of time. 7258
Wsec/cm
Wavelengths of light less than 4000 Angstroms begin to erase
the CY7C276 in the windowed package. For this reason, an
opaque label should be placed over the window if the EPROM
is exposed to sunlight or fluorescent lighting for extended
periods of time.
Max.
25
13
13
11
11
GND
3.0V
2
is the recommended maximum dosage.
< 3 ns
Min.
CY7C276-30
10%
90%
ALL INPUT PULSES
Max.
30
15
15
12
12
CY7C276
Page 3 of 10
Unit
ns
ns
ns
ns
ns
90%
10%
< 3 ns
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