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Número de pieza | M27C64A-20F1X | |
Descripción | 64 Kbit 8Kb x 8 UV EPROM and OTP EPROM | |
Fabricantes | STMicroelectronics | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de M27C64A-20F1X (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
No Preview Available ! M27C64A
64 Kbit (8Kb x 8) UV EPROM and OTP EPROM
5V ± 10% SUPPLY VOLTAGE in READ
OPERATION
FAST ACCESS TIME: 150ns
LOW POWER “CMOS” CONSUMPTION:
– Active Current 30mA
– Standby Current 100µA
PROGRAMMING VOLTAGE: 12.5V ± 0.25V
HIGH SPEED PROGRAMMING
(less than 1 minute)
ELECTRONIC SIGNATURE
– Manufacturer Code: 9Bh
– Device Code: 08h
28
1
FDIP28W (F)
PLCC32 (C)
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 micro-
processor 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.
Figure 1. Logic Diagram
VCC VPP
13
A0-A12
8
Q0-Q7
Table 1. Signal Names
A0-A12
Address Inputs
Q0-Q7
Data Outputs
E Chip Enable
G Output Enable
P Program
VPP Program Supply
VCC Supply Voltage
VSS Ground
March 1998
P M27C64A
E
G
VSS
AI00834B
1/12
1 page AC MEASUREMENT CONDITIONS
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref.
Voltages
≤ 20ns
0.4V to 2.4V
0.8V to 2.0V
Note that Output Hi-Z is defined as the point where data
is no longer driven.
Figure 3. AC Testing Input Output Waveforms
2.4V
0.4V
2.0V
0.8V
AI00826
M27C64A
Figure 4. AC Testing Load Circuit
1.3V
1N914
DEVICE
UNDER
TEST
3.3kΩ
OUT
CL = 100pF
CL includes JIG capacitance
AI00828
Table 5. Capacitance (1) (TA = 25 °C, f = 1 MHz )
Symbol
Parameter
Test Condition
CIN Input Capacitance
COUT
Output Capacitance
Note: 1. Sampled only, not 100% tested.
VIN = 0V
VOUT = 0V
Min Max Unit
6 pF
12 pF
Figure 5. Read Mode AC Waveforms
A0-A12
E
G
Q0-Q7
VALID
tAVQV
tGLQV
tELQV
tAXQX
VALID
tEHQZ
tGHQZ
Hi-Z
AI00778B
5/12
5 Page M27C64A
PLCC32 - 32 lead Plastic Leaded Chip Carrier - rectangular
Symb
Typ
mm
Min Max
inches
Typ Min Max
A
2.54 3.56
0.100
0.140
A1
1.52 2.41
0.060
0.095
A2
– 0.38
– 0.015
B
0.33 0.53
0.013
0.021
B1
0.66 0.81
0.026
0.032
D
12.32
12.57
0.485
0.495
D1
11.35
11.56
0.447
0.455
D2
9.91 10.92
0.390
0.430
E
14.86
15.11
0.585
0.595
E1
13.89
14.10
0.547
0.555
E2
12.45
13.46
0.490
0.530
e 1.27 –
– 0.050 –
–
F
0.00 0.25
0.000
0.010
R 0.89 –
– 0.035 –
–
N 32
32
Nd 7
7
Ne 9
9
CP 0.10 0.004
D
D1
1N
Ne
Nd
PLCC
Drawing is no to scale
E1 E
A1
A2
B1
F D2/E2
B
0.51 (.020)
1.14 (.045)
A
R CP
e
11/12
11 Page |
Páginas | Total 12 Páginas | |
PDF Descargar | [ Datasheet M27C64A-20F1X.PDF ] |
Número de pieza | Descripción | Fabricantes |
M27C64A-20F1TR | 64 Kbit 8Kb x 8 UV EPROM and OTP EPROM | STMicroelectronics |
M27C64A-20F1TR | 64K (8K x 8) UV EPROM and OTP ROM | STMicroelectronics |
M27C64A-20F1X | 64 Kbit 8Kb x 8 UV EPROM and OTP EPROM | STMicroelectronics |
M27C64A-20F1X | 64K (8K x 8) UV EPROM and OTP ROM | STMicroelectronics |
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