FM27C040
4,194,304-Bit (512K x 8) High Performance
CMOS EPROM
FM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM
January 2000
General Description
The FM27C040 is a high performance, 4,194,304-bit Electrically
Programmable UV Erasable Read Only Memory. It is organized
as 512K words of 8 bits each. Its pin-compatibility with byte-wide
JEDEC EPROMs enables upgrades through 8 Mbit EPROMs.
The “Don’t Care” feature on VPP during read operations allows
memory expansions from 1M to 8 Mbits with no printed circuit
board changes.
The FM27C040 provides microprocessor-based systems extensive storage capacity for large portions of operating system and
application software. Its 120ns access time provides high speed
operation with high-performance CPUs. The FM27C040 offers a
single chip solution for the code storage requirements of 100%
firmware-based equipment. Frequently used software routines
are quickly executed from EPROM storage, greatly enhancing
system utility.
The FM27C040 is manufactured using Fairchild’s advanced CMOS
AMG™ EPROM technology.
Block Diagram
V
CC
GND
V
PP
OE
CE/PGM
Output Enable,
Chip Enable, and
Program Logic
Features
■ High performance CMOS
—120, 150ns access time*
■ Simplified upgrade path
—VPP is a “Don’t Care” during normal read operation
■ Manufacturer’s identification code
■ JEDEC standard pin configuration
—32-pin PDIP
—32-pin PLCC
—32-pin CERDIP
*Note: New revision meets 70ns. Please check with factory for availability.
Note: Compatible EPROM pin configurations are shown in the blocks adjacent to the FM27C040 pin.
XX/V
PP
A
16
A
15
A
12
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
O
0
O
1
O
2
GND
1
PP
2
A
16
3
A
15
4
A
12
5
A
7
6
A
6
7
A
5
8
A
4
9
A
3
10
A
2
11
A
1
12
A
0
13
O
0
14
O
1
15
O
2
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
CC
A
18
A
17
A
14
A
13
A
8
A
9
A
11
OE
A
10
CE/PGM
O
7
O
6
O
5
O
4
O
3
27C010FM27C040
V
CC
XX/PGM
NC
A
14
A
13
A
8
A
9
A
11
OE
A
10
CE
O
7
O
6
O
5
O
4
O
3
FM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM
DS800033-2
Commercial Temperature Range
(0°C to +70°C) VCC = 5V ±10%
Parameter/Order NumberAccess Time (ns)
FM27C040 Q, N, V 9090
FM27C040 Q, N, V 120120
FM27C040 Q, N, V 150150
• All versions are guaranteed to function for slower speeds.
Pin Names
A0–A18Addresses
CE/PGMChip Enable/Program
OEOutput Enable
O0–O7Outputs
XXDon’t Care (During Read)
Extended Temperature Range
(-40°C to +85°C) VCC = 5V ±10%
Parameter/Order NumberAccess Time (ns)
FM27C040 QE, NE, VE 9090
FM27C040 QE, NE, VE 120120
FM27C040 QE, NE, VE 150150
Package Types: FM27C040 Q, N,V XXX
Q = Quartz-Windowed Ceramic DIP
N = Plastic DIP
V = PLCC
• All packages conform to the JEDEC standard.
FM27C040 Rev. A
2
www.fairchildsemi.com
FM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM
Absolute Maximum Ratings (Note 1)
All Output Voltages with
Respect to GroundVCC +1.0V to GND - 0.6V
Storage Temperature-65°C to +150°C
All Input Voltages except A9 with
Respect to Ground-0.6V to +7V
VPP and A9 with Respect to Ground-0.6V to +14V
Supply Voltage with
V
CC
Respect to Ground-0.6V to +7V
Operating Range
RangeTemperatureV
Commercial0°C to +70°C+5V±10%
Industrial-40°C to +85°C+5V±10%
CC
Tolerance
ESD Protection>2000V
Read Operation
DC Electrical Characteristics
SymbolParameterTest ConditionsMinMaxUnits
V
V
I
I
V
V
V
SB1
SB2
I
I
I
CC
PP
I
LO
IL
IH
OL
OH
PP
LI
Input Low Level-0.50.8V
Input High Level2.0VCC +1V
Output Low VoltageIOL = 2.1 mA0.4V
Output High VoltageIOH = -2.5 mA3.5V
VCC Standby Current (CMOS)CE = VCC ± 0.3V100µA
VCC Standby CurrentCE = V
VCC Active CurrentCE = OE = VIL,f=5 MHz30mA
VPP Supply CurrentVPP = V
VPP Read VoltageVCC - 0.4V
Input Load CurrentVIN = 5.5V or GND-11µA
Output Leakage CurrentV
Over operating range with VPP = V
IH
I/O = 0 mA
CC
= 5.5V or GND-1010µA
OUT
CC
1mA
10µA
CC
V
AC Electrical Characteristics Over operating range with V
PP
= V
CC
SymbolParameter120150Units
MinMaxMinMax
t
ACC
t
t
t
(Note 2)Output Float
t
(Note 2)Whichever Occurred First
Capacitance T
Address to Output Delay120150
CE to Output Delay120150
CE
OE to Output Delay5050
OE
Output Disable to4555ns
DF
Output Hold from Addresses CE or OE ,00
OH
= +25°C, f = 1 MHz (Note 2)
A
SymbolParameterConditionsTypMaxUnits
C
IN
C
OUT
Input CapacitanceVIN = 0V915pF
Output CapacitanceV
= 0V1215pF
OUT
FM27C040 Rev. A
3
www.fairchildsemi.com
AC Test Conditions
Output Load1 TTL Gate and CL = 100 pF (Note 8)
Input Rise and Fall Times≤5 ns
Input Pulse Levels0.45V to 2.4V
Timing Measurement Reference Level (Note 10)
Inputs0.8V and 2V
Outputs`0.8V and 2V
AC Waveforms (Notes 6, 7, 9)
FM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM
ADDRESSES
OUTPUT
Note 1: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of
the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions
for extended periods may affect device reliability.
Note 2: This parameter is only sampled and is not 100% tested.
Note 3: OE may be delayed up to t
Note 4: The tDF and tCF compare level is determined as follows:
High to TRI-STATE®, the measured V
Low to TRI-STATE, the measured V
Note 5: TRI-STATE may be attained using OE or CE .
Note 6: The power switching characteristics of EPROMs require careful device decoupling. It is recommended that at least a 0.1 µF ceramic capacitor be used on every device
between VCC and GND.
Note 7: The outputs must be restricted to VCC + 1.0V to avoid latch-up and device damage.
Note 8: 1 TTL Gate: IOL = 1.6 mA, IOH = -400 µA.
CL: 100 pF includes fixture capacitance.
Note 9: VPP may be connected to VCC except during programming.
Note 10: Inputs and outputs can undershoot to -2.0V for 20 ns Max.
2V
0.8V
2V
CE
0.8V
2V
OE
0.8V
2V
0.8V
Hi-Z
t
(Note 3)
- tOE after the falling edge of CE without impacting t
ACC
(DC) - 0.10V;
OH1
(DC) + 0.10V.
OL1
ACC
Addresses Valid
t
CE
t
OE
(Note 3)
ACC
Valid Output
.
t
CF
(Note 4, 5)
t
DF
(Note 4, 5)
t
OH
Hi-Z
DS800033-4
FM27C040 Rev. A
4
www.fairchildsemi.com
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