M27C64A-15F1 STMicroelectronics, M27C64A-15F1 Datasheet - Page 9
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M27C64A-15F1
Manufacturer Part Number
M27C64A-15F1
Description
IC EPROM 64KBIT 150NS 28CDIP
Manufacturer
STMicroelectronics
Specifications of M27C64A-15F1
Format - Memory
EPROMs
Memory Type
UV EPROM
Memory Size
64K (8K x 8)
Speed
150ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
28-CDIP (0.600", 15.24mm) Window
Capacitance, Input
6 pF
Capacitance, Output
12 pF
Current, Input, Leakage
±10 μA (Read)
Current, Operating
30 mA (Read)
Current, Output, Leakage
±10 μA (Read)
Current, Supply
30 mA (Max.)
Density
64K
Organization
8K×8
Package Type
FDIP28W
Temperature, Operating
0 to +70 °C
Temperature, Operating, Maximum
85 °C
Temperature, Operating, Minimum
-40 °C
Time, Access
150 ns
Time, Fall
≤20 ns
Time, Rise
≤20 ns
Voltage, Input, High
6 V (Read)
Voltage, Input, High Level
2 V (Min.)
Voltage, Input, Low
0.8 V (Read)
Voltage, Input, Low Level
-0.3 V (Max.)
Voltage, Output, High
4.3 V (Read)
Voltage, Output, Low
0.4 V (Read)
Voltage, Programmable
11.5 V (Min.)
Voltage, Supply
5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-1685-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
M27C64A-15F1
Manufacturer:
ST
Quantity:
5 380
Company:
Part Number:
M27C64A-15F1
Manufacturer:
ST
Quantity:
5 380
Part Number:
M27C64A-15F1
Manufacturer:
ST
Quantity:
20 000
M27C64A
2.5
2.6
be a high frequency capacitor of low inherent inductance and should be placed as close to
the device as possible. In addition, a 4.7µF bulk electrolytic capacitor should be used
between V
power supply connection point. The purpose of the bulk capacitor is to overcome the voltage
drop caused by the inductive effects of PCB traces.
Programming
When delivered (and after each erasure for UV EPROM), all bits of the M27C64A are in the
"1" state. Data is introduced by selectively programming "0"s into the desired bit locations.
Although only "0"s will be programmed, both "1"s and "0"s can be present in the data word.
The only way to change a "0" to a "1" is by die exposition to ultraviolet light (UV EPROM).
The M27C64A is in the programming mode when V
pulsed to V
pins. The levels required for the address and data inputs are TTL. V
± 0.25V.
High-speed programming
The high speed programming algorithm, described in
M27C64A using an efficient and reliable method, particularly suited to the production
programming environment. An individual device will take around 1 minute to program.
Figure 4.
CC
IL
. The data to be programmed is applied to 8 bits in parallel to the data output
Programming Flowchart
and V
SS
for every eight devices. The bulk capacitor should be located near the
YES
NO
> 25
FAIL
++n
V CC = 6V, V PP = 12.5V
CHECK ALL BYTES
P = 3ms Pulse by n
NO
2nd: V CC = 4.2V
1st: V CC = 6V
P = 1ms Pulse
VERIFY
n = 1
Addr
Last
YES
YES
NO
PP
Figure
input is at 12.5V, E is at V
++ Addr
AI01167
4, rapidly programs the
CC
is specified to be 6V
Device operation
IL
and P is
9/22