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PDF M58658P Data sheet ( Hoja de datos )
| Número de pieza | M58658P | |
| Descripción | 320-Bit Electrically Alterable ROM | |
| Fabricantes | Mitsubishi Electric | |
| Logotipo |  |
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MITSUBISHI LSls
M58658P
320-BIT (20-WORD BY 16-BIT) ELECTRICALLY ALTERABLE ROM
DESCRIPTION
The M58658P is a serial input/output 320 bit electrically
erasable and reprogrammable ROM organized as 20 words
of 16 bits, and fabricated using MNOS technology, Data
and addresses are transferred serially via a one-bit bidirec-
tional bus_
FEATURES
• Word-by-word electrically alterable
• Non-volatile data storage __ , ______ ,10 years (min)
• Write/erase time, , ____ , __ , ______ 20ms, word
• Typical power supply voltages ___ , __ ,-30V, +5V
• Number of erase-write cycles, ______ 105 times (min)
• Number of read 'access unrefreshed_ , _109 times (min)
• 5V I/O interface
PIN CONFIGURATION (TOP VIEW)
15VI Vss
(-30VI VGG
NC
cs
NC
CLOCK INPUT ClK _
MODE CONTROL C , -
INPUT
VMINC)
(OV) VONO
DATA INPUT;
OUTPUT
NC
NC
~C3
-C2
} MODE CONTRO
INPUTS
APPLICATION
• Non-volatile channel memories for electronic tuning
systems and field-reprogrammable read-only memory
systems
Outline 14P4
NC: NO CONNECTION
FUNCTION
The address is designated by two consecutive one-of-four
coded' digits_ Eight modes-accept address, AD accept
address, accept data, shift data output, erase, write, read,
and standby-are all selected by a 3-bit code applied to C1 ,
C2 , and C3, Data is stored by internal negative writing
pulses that selectively tunnel charges into the Si0 2 -Si3 N4
interface of the gate insulators of the MNOS memory
transistors,
BLOCK DIAGRAM
I -··--~·---,
I
Vss(5V)
2 VoGi-30V)
MEMORY
TRANSISTOR
ARRAY
(IOO·WORD BY
14·81TI
READ
WRITE
ERASE
CllC2 MODE CONTROL INPUTS
C3
CHIP SELECT
6 ClK CLOCK INPUT
• MITSUBISHI
"ELECTRIC
7-15
1 page  
MITSUBISHI LSls
M58658P
320-BIT (20-WORD BY 16-BIT) ELECTRICALLY ALTERABLE ROM
Erase Mode
CS : L
H
CLOCK L
C, H
L
H
C2 L
H
C3 L
~~
II
I
l~
II
I~
Te
I
~I
Write Mode
cs: L
H
CLOCK L
~1.JLn.n
~I
Read Mode (1 clock)
CS: L
H
CLOCK L
H
C,
L
C2 H
L
C3
H
L
ruLJlJ
L-.r-
Accept Data (16 clock)
CS: L
H
CLOCK
L
C, H
L
H
C2
L
C3 H
L
H
I/O
L
-,
I
I
I
IE
tl
It
:(t
16 CLOCK CYCLE
• MITSUBISHI
;"ELECTRIC
I
I
I
I
~I
7-19
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet M58658P.PDF ] | |
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