Document
NM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM
February 1999
NM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM
General Description
The NM27C040 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 NM27C040 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 NM27C040 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 NM27C040 is manufactured using Fairchild’s advanced CMOS AMG™ EPROM technology.
Features
s High performance CMOS — 120, 150ns access time* s Simplified upgrade path —VPP is a “Don’t Care” during normal read operation s Manufacturer’s identification code s JEDEC standard pin configuration — 32-pin PDIP — 32-pin PLCC — 32-pin CERDIP
*Note: New revision meets 70ns. Please check with factory for availability.
Block Diagram
VCC GND VPP OE CE/PGM Output Enable, Chip Enable, and Program Logic Data Outputs O0 - O7
Output Buffers
Y Decoder
..
Y Gating
A0 - A18 Address Inputs
.......
4,194,304-Bit Cell Matrix
X Decoder
DS010836-1
AMG™ is a trademark of WSI, Inc.
© 1999 Fairchild Semiconductor Corporation NM27C040 Rev. C.1
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NM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM
Connection Diagrams
27C080 27C020 27C010
NM27C040
XX/VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
27C010
27C020
27C080
A19 A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND
Note:
XX/VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND
XX/VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 O0 O1 O2 GND
VCC A18 A17 A14 A13 A8 A9 A11 OE A10 CE/PGM O7 O6 O5 O4 O3
VCC VCC VCC XX/PGM XX/PGM A18 NC A17 A17 A14 A14 A14 A13 A13 A13 A8 A8 A8 A9 A9 A9 A11 A11 A11 OE OE OE/VPP A10 A10 A10 CE CE CE/PGM O7 O7 O7 O6 O6 O6 O5 O5 O5 O4 O4 O4 O3 O3 O3
DS010836-2
Compatible EPROM pin configurations are shown in the blocks adjacent to the NM27C040 pin.
Commercial Temperature Range (0°C to +70°C) VCC = 5V ±10%
Parameter/Order Number
NM27C040 Q, N, V 120 NM27C040 Q, N, V 150
Extended Temperature Range (-40°C to +85°C) VCC = 5V ±10%
Parameter/Order Number
NM27C040 QE, NE, VE 150 Package Types: NM27C040 Q, N,V XXX Q = Quartz-Windowed Ceramic DIP N = Plastic DIP
Access Time (ns)
120 150
Access Time (ns)
150
Pin Names
A0–A18 CE/PGM OE O0–O7 XX Addresses Chip Enable/Program Output Enable Outputs Don’t Care (During Read)
V = PLCC • All packages conform to the JEDEC standard. • All versions are guaranteed to function for slower speeds.
2
NM27C040 Rev. C.1
www.fairchildsemi.com
NM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM
Absolute Maximum Ratings (Note 1)
Storage Temperature All Input Voltages except A9 with Respect to Ground VPP and A9 with Respect to Ground VCC Supply Voltage with Respect to Ground ESD Protection -65°C to +150°C -0.6V to +7V -0.6V to +14V -0.6V to +7V >2000V
All Output Voltages with Respect to Ground
VCC +1.0V to GND - 0.6V
Operating Range
Range
Commercial Industrial
Temperature
0°C to +70°C -40°C to +85°C
VCC
+5V +5V
Tolerance
±10% ±10%
Read Operation DC Electrical Characteristics Over operating range with VPP = VCC
Symbol
VIL VIH VOL VOH ISB1 ISB2 ICC IPP VPP ILI ILO
Parameter
Input Low Level Input High Level Output Low Voltage Output High Voltage VCC Standby Current (CMOS) VCC Standby Current VCC Active Current VPP Supply Current VPP Read Voltage Input Load Current Output Leakage Current
Test Conditions
Min
-0.5 2.0
Max
0.8 VCC +1 0.4
Units
V V V V
IOL = 2.1 mA IOH = -2.5 mA CE = VCC ± 0.3V CE = VIH CE = OE = VIL, I/O = 0 mA VPP = VCC VCC - 0.4 VIN = 5.5V or GND VOUT = 5.5V or GND -1 -10 f=5 MHz 3.5
100 1 30 10 VCC 1 10
µA mA mA µA V µA µA
AC Electrical Characteristics Over operating range with VPP = VCC
Symbol
tACC tCE tOE tDF (Note 2) tOH (Note 2)
Parameter Min
Address to Output Delay CE to Output Delay OE to Output Delay Output Disable to Output Float Output Hold from Addresses CE or OE , Whichever Occurred First 0
120 Max
120 120 50 45 0
150 Min Max
150 150 50 55
Units
ns
Capacitance TA = +25°C, f = 1 MHz (Note 2)
Symbol
CIN COUT
Parameter
Input Capacitance Output Capacitance
Conditions
VIN = 0V VOUT = 0V
Typ
9 12
Max
15 15
Units
pF pF
3
NM27C040 Rev. C.1
www.fairchildsemi.com
NM27C040 4,194,304-Bit (512K x 8) High Performance CMOS EPROM
AC Test Conditions
Output Load 1 TTL Gate and CL .