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A276308 Datasheet(PDF) 8 Page - AMIC Technology

No. de pieza A276308
Descripción Electrónicos  64K X 8 OTP CMOS EPROM
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Fabricante Electrónico  AMICC [AMIC Technology]
Página de inicio  http://www.amictechnology.com
Logo AMICC - AMIC Technology

A276308 Datasheet(HTML) 8 Page - AMIC Technology

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A276308
PRELIMINARY
(December, 1998, Version 0.1)
7
AMIC Technology, Inc.
Programming and Program Verify
The programming flowchart is shown in Page 10.
The A276308 is shipped with all bits being set to "1".
Programming causes relevant bits to be changed to "0".
The programming mode is started by setting VCC to
6.25V, OE /VPP to +12.75V and CE is at VIL.
Data to
be programmed can be directly input in the 8 bit format
through the data bus.
The write programming algorithm reduces programming
time by using 100
µs pulse followed by a byte verification
to determine whether the byte has been successfully
programmed. If the data does not pass the verification,
an additional pulse programming is applied for a
maximum of 25 pulses. On completion of 1 byte
programming and, The verified address is incremented.
After the final address is completed, all bytes are verified
again with VCC = 5.0 Volt.
Program Inhibit
This mode is used to program one of multiple A276308
whose VCC, address bus and data bus are connected in
parallel.
When
programming
is
performed,
other
A276308 can be inhibited from being programmed by
setting their CE pins to VIH and OE /VPP pins to
+12.75V.
Programming Mode DC Characteristics (Ta = 0
°C to 70°C, VCC = 6.25V ± 0.25V, VPP = 12.75V ± 0.25V)
Symbol
Parameter
Min.
Max.
Unit
Test Conditions
VOH
Output High Voltage
2.4
V
IOH = -400
µA
VOL
Output Low Voltage
0.4
V
IOL = 2.1mA
VIH
Input High Voltage
2.0
VCC + 0.5
V
VIL
Input Low Voltage
-0.5
0.8
V
ILI
Input Leakage Current
-1
+1
µA
VCC = max. Vin = 0V to VCC
ICC
VCC Current During Program
50
mA
IPP
VPP Current During Program
50
mA
CE
= VIL
VID
A9 Auto Select Voltage
11.5
12.5
V
A9 = VID
VCC1
Programming Supply Voltage
6.0
6.5
V
VPP1
Programming Voltage
12.5
13
V
Note: VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.


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