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QP Semiconductor

QP7C291A Datasheet Preview

QP7C291A Datasheet

2K x 8 Reprogrammable PROM

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QP7C291A / QP7C292A
2K x 8 Reprogrammable PROM
October 9, 2007
Features
• 5V ±10% VCC, commercial, industrial and military
• Direct replacement for Cypress PROMs
• Windowed Packages available for reprogrammability • Direct replacement for bipolar PROMs
• OTP (One-Time-Programmable) Packages available • EPROM technology 100% programmable
• High speed
- 20 ns (commercial)
- 25 ns (military)
• CMOS for optimum speed/power
• Low power
- 660 mW (commercial and military)
• Low standby power
- 220 mW (commercial and military)
• Slim 300-mil or standard 600-mil packaging available • TTL-compatible I/O
General Description
The QP7C291A, and QP7C292A are high-performance 2K-word by 8-bit CMOS PROMs. They are functionally
identical, but are packaged in 300-mil (QP7C291A) and 600-mil wide plastic and hermetic DIP packages
(QP7C292A). The QP7C291A is also available in LCC/PLCC packages.
The devices are available in windowed packages (Erasable when exposed to UV light) and can be
reprogrammed. They are also available in non-windowed OTP (One-Time-Programmable) hermetic and plastic
packages.
The memory cells utilize proven EPROM floating-gate technology and byte-wide intelligent programming
algorithms.
The QP7C291A, and QP7C292A, are plug-in replacements for Cypress PROMs. They are also designed to be
plug-in replacements for bipolar devices and offer the advantages of lower power, re-programmability, superior
performance and 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 exercised prior to packaging. Each PROM is tested for AC
performance to guarantee that after customer programming the product will meet DC and AC specification
limits.
A read is accomplished by placing an active LOW signal on CS1, and active HIGH signals on CS2 and CS3. The
contents of the memory location addressed by the address line (A0 A10 will become available on the output
lines (O0 O7).
QP Semiconductor products are not authorized for use in any space applications. The inclusion of QP Semiconductor
products in space applications implies that the space application manufacturer assumes all risk of such use and in doing
so indemnifies QP Semiconductor against all charges.
2945 Oakmead Village Ct, Santa Clara, CA 95051 Phone: (408) 737-0992 Fax: (408) 736—8708 Internet: www.qpsemi.com




QP Semiconductor

QP7C291A Datasheet Preview

QP7C291A Datasheet

2K x 8 Reprogrammable PROM

No Preview Available !

Connection Diagrams
QP7C291A
QP7C292A
CerDIP/PDIP/Cerpack 24 Lead
Hermetic Packages available in both
Erasable (Windowed and OTP –
One-Time-Programmable (Non-
Windowed versions.
Molded Plastic Packages
(PDIP/PLCC are only available as
OTP (Non-Windowed.
Block Diagram
QP7C291A
QP7C292A
QP7C291A / QP7C292A
LCC/PLCC
Absolute Maximum Ratings
Stresses above the AMR may cause permanent damage, extended operation at AMR may degrade performance and affect reliability
Condition
Units
Notes
Supply Voltage to Ground
DC Voltage Applied to Outputs in High Z
State
DC Input Voltage
DC Program Voltage
UV Exposure
-0.5 to 7.0 Volts
-0.5 to 7.0 Volts
-3.0V to 7.0 Volts
13.0 Volts
7258 WSEC/cm2
QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051
Page 2 of 8


Part Number QP7C291A
Description 2K x 8 Reprogrammable PROM
Maker QP Semiconductor
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