QP7C261 / QP7C263 / QP7C264
October 9, 2007
8K x 8 Power-Switched and Reprogrammable PROM
Features
• 5V ±10% VCC, commercial, industrial and military
• Windowed Packages available for reprogrammability
• OTP (One-Time-Programmable) Packages available
• High speed
- 20 ns (commercial)
- 25 ns (military)
• CMOS for optimum speed/power
• Slim 300-mil or standard 600-mil packaging available
• Direct replacement for Cypress
PROMs
• Direct replacement for bipolar PROMs
• EPROM technology 100%
programmable
• Low power
- 660 mW (commercial and military)
• Super Low standby power
- 220 mW (QP7C261)
• TTL-compatible I/O
General Description
The QP7C261, QP7C263, and QP7C264 are high-performance 8192-word by 8-bit CMOS PROMs. When
deselected, the QP7C261 automatically powers down into a low-power standby mode. The QP7C263 and
QP7C264 do not power down when deselected.
The QP7C261 is available in a 300-mil-wide DIP package. The QP7C263 and QP7C264 are packaged in 300-mil-
wide DIP and 600-mil-wide DIP packages respectively. Flatpack, Cerpack, LCC, PLCC and LLCC package
options are available.
The memory cells utilize proven EPROM floating-gate technology and byte-wide intelligent programming
algorithms. The QP7C261, QP7C263, and QP7C264 are plug-in replacements for Cypress PROMs and a wide
variety of bipolar PROMs. When used to replace bipolar PROMs they offer the advantages of lower power,
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 assembly. Each PROM is also 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 CS. The contents of the memory location
addressed by the address lines (A0−A12) become available on the output lines (O0−O7).
The devices are available in windowed packages (Erasable when exposed to UV light) and are also available in
non-windowed OTP (One-Time-Programmable) hermetic and plastic packages.
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
QP7C261 / QP7C263 / QP7C264
Connection Diagrams
CerDIP/PDIP/Cerpack 24 Lead
QP7C261
QP7C263
QP7C264
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).
LLCC/LCC/PLCC
Block Diagram
QP7C261
QP7C263
QP7C264
QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051
Page 2 of 13
QP7C261 / QP7C263 / QP7C264
Absolute Maximum Ratings
Stresses above the AMR may cause permanent damage, extended operation at AMR may degrade performance and affect reliability
Condition
Supply Voltage to Ground
DC Voltage Applied to Outputs in High Z
State
DC Input Voltage
DC Program Voltage
UV Exposure
Storage Temperature
Ambient Temperature with Power Applied
Junction Temperature
Recommended Operating Conditions
Condition
Supply Voltage Range
Case Operating Range (T
c
)
Case Operating Range (T
c
)
Case Operating Range (T
c
)
Notes:
4.5 to 5.5
-0C to +70
-40C to +85
-55 to +125
Units
-0.5 to 7.0 Volts
-0.5 to 7.0 Volts
-3.0V to 7.0
13.0
7258
-65 to +155
-55 to +125
150
Volts
Volts
W
SEC
/cm
2
ºC
ºC
ºC
Notes
/1
/1
/1
/2
/3 /4
Units
Volts DC
ºC
ºC
ºC
Notes
5V ± 10%
Commercial
Industrial
Military
Apply to Absolute Maximum, Recommended Operating Conditions and Electrical Performance Characteristics.
/1 – The Voltage on any input or I/O pin cannot exceed the power pin during power-up.
/2 – T
A
is the “instant on” case temperature.
/3– Applies to all versions, but is critical for molded plastic products. Tj above listed limits can activate
mold compound flame retardant.
/4 – Maximum T
J
is not to be exceeded.
/5 – V
CC
4.5 to 5.5 Volts
/6 – For Test Purposes, not more than one output at a time should be shorted. Short circuit test duration
should not exceed 30 seconds.
TABLE I – ELECTRICAL PERFORMANCE CHARACTERISTICS
Test
Symbol
Conditions /5
Case Operating Range (ºC)
Min
Max
Unit
Output Voltage High
QP7C26x-20 & 25
QP7C26x-35, 45 & 55
Output Voltage Low
QP7C26x-20 & 25
QP7C26x-35, 45 & 55
Input High Voltage
Input Low Voltage
V
OL
V
OL
V
IH
V
IL
V
CC
= 4.5V, I
OL
=8.0mA
V
CC
= 4.5V, I
OL
=16.0mA
Guaranteed Input logical
High for all inputs
Guaranteed Input logical
Low for all inputs
V
OH
V
OH
V
CC
= 4.5V, I
OH
=-2.0mA
V
CC
= 4.5V, I
OH
=-4.0mA
2.4
2.4
0.4
0.4
2.0
V
CC
0.8
V
V
V
V
V
V
QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051
Page 3 of 13
QP7C261 / QP7C263 / QP7C264
TABLE I – ELECTRICAL PERFORMANCE CHARACTERISTICS
Test
Symbol
Conditions /5
Case Operating Range (ºC)
Min
Max
Unit
Input Load Current
Output Leakage Current
Output Short Circuit Current
/6
Operating Supply Current
I
IX
I
OZ
I
OS
I
CC
GND≤V
OUT
≤V
CC
GND≤V
IN
≤V
CC
Output Disabled
-10
Com’l
Mil
-10
-40
-20
10
10
40
-90
120
120
100
100
100
140
120
120
120
40
40
30
30
30
40
30
30
30
μA
μA
μA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
V
mA
V
V
pF
pF
nS
V
CC
= 5.5V, V
OUT
=GND
V
CC
= 5.5V, I
OUT
=0 mA
20ns Commercial
25ns Commercial
35ns Commercial
45ns Commercial
55ns Commercial
25ns Military
35ns Military
45ns Military
55ns Military
Standby Supply Current
QP7C261
I
SB
V
CC
= 5.5V, I
OUT
=0 mA
20ns Commercial
25ns Commercial
35ns Commercial
45ns Commercial
55ns Commercial
25ns Military
35ns Military
45ns Military
55ns Military
Programming Supply Voltage
Programming Supply Current
Input High Programming Voltage
Input Low Programming Voltage
Input Capacitance
Output Capacitance
Address to Output Valid
V
PP
I
PP
V
IHP
V
ILP
C
IN
C
OUT
t
AA
T
A
=25ºC, f=1MHz,
V
CC
=5.0V
T
A
=25ºC, f=1MHz,
V
CC
=5.0V
QP7C26x-20
12
4.75
13
50
0.4
10
10
20
QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051
Page 4 of 13
QP7C261 / QP7C263 / QP7C264
TABLE I – ELECTRICAL PERFORMANCE CHARACTERISTICS
Test
Symbol
Conditions /5
Case Operating Range (ºC)
Min
Max
Unit
QP7C26x -25
QP7C26x -35
QP7C26x -45
QP7C26x -55
Chip Select Inactive to High Z
(QP7C263 and QP7C264)
T
HZCS1
QP7C26x -20
QP7C26x -25
QP7C26x -35
QP7C26x -45
QP7C26x -55
Chip Select Inactive to High Z
(QP7C261)
T
HZCS2
QP7C261-20
QP7C261-25
QP7C261-35
QP7C261-45
QP7C261-55
Chip Select Active to Output
(QP7C263 and QP7C264)
T
ACS1
QP7C26x -20
QP7C26x -25
QP7C26x -35
QP7C26x -45
QP7C26x -55
Chip Select Active to Output
(QP7C261)
T
ACS2
QP7C261-20
QP7C261-25
QP7C26135
QP7C261-45
QP7C261-55
Chip Select Active to Power-Up
(QP7C261)
Chip Select Inactive to Power-
Down (QP7C261)
T
PU
QP7C261-20
QP7C261-25
QP7C26135
QP7C261-45
QP7C261-55
T
PU
QP7C261-All T
AA
0
25
35
45
55
12
12
20
30
35
20
25
35
45
55
12
12
20
30
35
20
25
35
45
55
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
20
25
35
45
55
nS
nS
nS
nS
nS
QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051
Page 5 of 13
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