nmc27c64 Fairchild Semiconductor, nmc27c64 Datasheet

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nmc27c64

Manufacturer Part Number
nmc27c64
Description
65,536-bit 8192 X 8 Cmos Eprom
Manufacturer
Fairchild Semiconductor
Datasheet

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© 1998 Fairchild Semiconductor Corporation
NMC27C64 Rev. C
NMC27C64
65,536-Bit (8192 x 8) CMOS EPROM
General Description
The NMC27C64 is a 64K UV erasable, electrically reprogrammable
and one-time programmable (OTP) CMOS EPROM ideally suited
for applications where fast turnaround, pattern experimentation
and low power consumption are important requirements.
The NMC27C64 is designed to operate with a single +5V power
supply with 10% tolerance. The CMOS design allows the part to
operate over extended and military temperature ranges.
The NMC27C64Q is packaged in a 28-pin dual-in-line package
with a quartz window. The quartz window allows the user to
expose the chip to ultraviolet light to erase the bit pattern. A new
pattern can then be written electrically into the device by following
the programming procedure.
The NMC27C64N is packaged in a 28-pin dual-in-line plastic
molded package without a transparent lid. This part is ideally
Block Diagram
A 0 - A 12
Address
Inputs
GND
V CC
PGM
V PP
OE
CE
Chip Enable, and
Output Enable,
Program Logic
X Decoder
Y Decoder
1
suited for high volume production applications where cost is an
important factor and programming only needs to be done once.
This family of EPROMs are fabricated with Fairchild’s proprietary,
time proven CMOS double-poly silicon gate technology which
combines high performance and high density with low power
consumption and excellent reliability.
Features
High performance CMOS
— 150 ns access time
JEDEC standard pin configuration
— 28-pin Plastic DIP package
— 28-pin CERDIP package
Drop-in replacement for 27C64 or 2764
Manufacturers identification code
Data Outputs O 0 - O 7
Cell Matrix
65,536-Bit
Buffers
Output
www.fairchildsemi.com
January 1999
DS008634-1

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nmc27c64 Summary of contents

Page 1

... CMOS EPROM ideally suited for applications where fast turnaround, pattern experimentation and low power consumption are important requirements. The NMC27C64 is designed to operate with a single +5V power supply with 10% tolerance. The CMOS design allows the part to operate over extended and military temperature ranges. ...

Page 2

... GND GND GND GND Note: Socket compatible EPROM pin configurations are shown in the blocks adjacent to the NMC27C64 pins. Pin Names Commercial Temperature Range Parameter/Order Number NMC27C64Q, N 150 NMC27C64Q, N 200 Extended Temp Range (- +85 C) Parameter/Order Number NMC27C64QE, NE200 NMC27C64 Rev ...

Page 3

... OE to Output Delay High to Output Float High to Output Float CF t Output Hold from OH Addresses Whichever Occurred First NMC27C64 Rev. C Power Dissipation (Note 1) Lead Temperature - +125 C (Soldering, 10 sec.) - +150 C ESD Rating (Mil Spec 883C, +6.5V to -0.6V Method 3015.2) Operating Conditions +1.0V to GND -0.6V ...

Page 4

... Capacitance TA = +25˚ MHz (Note 2) NMC27C64Q Symbol Parameter C Input Capacitance IN C Output Capacitance OUT Capacitance TA = +25˚ MHz (Note 2) NMC27C64N Symbol Parameter C Input Capacitance IN C Output Capacitance OUT AC Test Conditions Output Load 1 TTL Gate and C Input Rise and Fall Times ...

Page 5

... Programming Supply Voltage PP t Input Rise, Fall Time FR V Input Low Voltage IL V Input High Voltage IH t Input Timing Reference Voltage IN t Output Timing Reference Voltage OUT NMC27C64 Rev. C (Note 11) (Note 12) (Note 13) (Note 14) Conditions Min 0. ...

Page 6

... At least a 0.1 F capacitor is required across V which may damage the device. Note 14: Programming and program verify are tested with the interactive Program Algorithm, at typical power supply voltages and timings. NMC27C64 Rev. C (Note 13) Program ...

Page 7

... Fast Programming Algorithm Flow Chart Increment ADDR NMC27C64 Rev. C Start ADDR = First Location 12.75V Program one 100 s Pulse Increment X Yes Fail Verify Verify Byte Byte Pass No Last Address Yes Fail Device 1st =5. Failed 2nd =4.5V ...

Page 8

... Programming CAUTION: Exceeding 14V on pin 1 (V NMC27C64. Initially, all bits of the NMC27C64 are in the “1” state. Data is introduced by selectively programming “0s” into the desired bit locations. Although only “0s” will be programmed, both “1s” and “0s” can be presented in the data word. A “0” cannot be changed to a “ ...

Page 9

... Angstroms (Å). The integrated dose (i.e., UV intensity x exposure time) for erasure should be a minimum of 15W-sec/cm The NMC27C64 should be placed within 1 inch of the lamp tubes during erasure. Some lamps have a filter on their tubes which should be removed before erasure. ...

Page 10

... Dual-In-Line Package (N) Order Number NMC27C64N Package Number N28B 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably ex- pected to cause the failure of the life support device or system affect its safety or effectiveness ...

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