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M27C64A-10F1

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
List of figures M27C64A
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List of figures
Figure 1. Logic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2. DIP Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3. Pin Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4. Programming Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5. AC Testing Input Output Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 6. AC Testing Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 7. Read Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 8. Programming and Verify Modes AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 9. FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Outline . . . . . . . . . . . . . 18
Figure 10. PLCC32 - 32 lead Plastic Leaded Chip Carrier, Package Outline . . . . . . . . . . . . . . . . . . . 19
Obsolete Product(s) - Obsolete Product(s)
M27C64A Summary description
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1 Summary description
The M27C64A is a 64Kbit EPROM offered in the two ranges UV (ultra violet erase) and OTP
(one time programmable). It is ideally suited for microprocessor systems requiring large
programs and is organized as 8,192 by 8 bits.
The FDIP28W (window ceramic frit-seal package) has transparent lid which allows the user
to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be
written to the device by following the programming procedure.
For applications where the content is programmed only on time and erasure is not required,
the M27C64A is offered in PLCC32 package.
In order to meet environmental requirements, ST offers the M27C64A in ECOPACK
®
packages.
ECOPACK packages are Lead-free. The category of second Level Interconnect is marked
on the package and on the inner box label, in compliance with JEDEC Standard JESD97.
The maximum ratings related to soldering conditions are also marked on the inner box label.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Obsolete Product(s) - Obsolete Product(s)
Summary description M27C64A
6/22
Figure 1. Logic Diagram
Table 1. Signal Names
A0-A12 Address Inputs
Q0-Q7 Data Outputs
E
Chip Enable
G
Output Enable
P
Program
V
PP
Program Supply
V
CC
Supply Voltage
V
SS
Ground
NC Not Connected Internally
DU Don’t Use
AI00834B
13
A0-A12
P
Q0-Q7
V
PP
V
CC
M27C64A
G
E
V
SS
8
Obsolete Product(s) - Obsolete Product(s)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

M27C64A-10F1

Mfr. #:
Buy M27C64A-10F1
Manufacturer:
STMicroelectronics
Description:
EPROM 64K (8Kx8) 100ns
Lifecycle:
New from this manufacturer.
Delivery:
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