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M27128A-3F1 View Datasheet(PDF) - STMicroelectronics

Part NameM27128A-3F1 ST-Microelectronics
STMicroelectronics ST-Microelectronics
DescriptionNMOS 128K (16K x 8) UV EPROM
M27128A-3F1 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
M27128A
AC MEASUREMENT CONDITIONS
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
20ns
0.45V 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
0.45V
2.0V
0.8V
AI00827
Figure 4. AC Testing Load Circuit
1.3V
1N914
DEVICE
UNDER
TEST
3.3k
OUT
CL = 100pF
CL includes JIG capacitance
AI00828
Table 5. Capacitance (1) (TA = 25 °C, f = 1 MHz )
Symbol
Parameter
CIN
Input Capacitance
COUT
Output Capacitance
Note: 1. Sampled only, not 100% tested.
Test Condition
VIN = 0V
VOUT = 0V
Min
Max
Unit
=
6
pF
=
12
pF
Figure 5. Read Mode AC Waveforms
A0-A13
E
G
Q0-Q7
tAVQV
VALID
tGLQV
tELQV
tAXQX
tEHQZ
tGHQZ
DATA OUT
Hi-Z
AI00771
4/10
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DESCRIPTION
The M27128A is a 131,072 bit UV erasable and electrically programmable memory EPROM. It is organized as 16,384 words by 8 bits. The M27128A is housed in a 28 Pin Window Ceramic Frit-Seal Dual-in-Line package. The trans parent lid 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.

FAST ACCESS TIME: 200ns
EXTENDED TEMPERATURE RANGE
SINGLE 5 V SUPPLY VOLTAGE
LOW STANDBY CURRENT: 40mA max
TTL COMPATIBLE DURING READ and PROGRAM
FAST PROGRAMMING ALGORITHM
ELECTRONIC SIGNATURE
PROGRAMMING VOLTAGE: 12V

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