M27V320-120N6 Ver la hoja de datos (PDF) - STMicroelectronics
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M27V320-120N6 Datasheet PDF : 15 Pages
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M27V320
Figure 2. SO Connections
Figure 3. TSOP Connections
NC 1
A18 2
44 A20
43 A19
BYTE 1
A16
A15
48 VSS
VSS
Q15A–1
A17 3
42 A8
A14
Q7
A7 4
41 A9
A13
Q14
A6 5
40 A10
A12
Q6
A5 6
39 A11
A11
Q13
A4 7
38 A12
A10
Q5
A3
A2
t(s) A1
A0
c E
du VSS
ro ) GVPP
P t(s Q0
te c Q8
le u Q1
d Q9
so ro Q2
b P Q10
- O te Q3
t(s) ole Q11
8
37
9
36
10
35
11 M27V320 34
12
33
13
32
14
31
15
30
16
29
17
28
18
27
19
26
20
25
21
24
22
23
AI05853
A13
A14
A15
A16
BYTE
VSS
Q15A–1
Q7
Q14
Q6
Q13
Q5
Q12
Q4
VCC
roduc ) - Obs Table 1. Signal Names
P t(s A0-A20
Address Inputs
lete uc Q0-Q7
Data Outputs
d Q8-Q14
Data Outputs
so ro Q15A–1
Data Output / Address Input
Ob P E
Chip Enable
lete GVPP
Output Enable / Program Supply
o BYTE
Byte-Wide Select
bsVCC
Supply Voltage
OVSS
Ground
A9
A8
A19
VSS
A20
A18
A17
A7
A6
A5
A4
A3
A2
A1
A0
E
Q12
Q4
12
37
M27V320
13
36
VCC
VCC
VSS
Q11
Q3
Q10
Q2
Q9
Q1
Q8
Q0
GVPP
VSS
24
25 VSS
AI05854
DEVICE OPERATION
The operating modes of the M27V320 are listed in
the Operating Modes Table. A single power supply
is required in the read mode. All inputs are TTL
compatible except for VPP and 12V on A9 for the
Electronic Signature.
Read Mode
The M27V320 has two organisations, Word-wide
and Byte-wide. The organisation is selected by the
signal level on the BYTE pin. When BYTE is at VIH
the Word-wide organisation is selected and the
Q15A–1 pin is used for Q15 Data Output. When
the BYTE pin is at VIL the Byte-wide organisation
is selected and the Q15A–1 pin is used for the Ad-
dress Input A–1. When the memory is logically re-
NC
Not Connected Internally
garded as 16 bit wide, but read in the Byte-wide
organisation, then with A–1 at VIL the lower 8 bits
of the 16 bit data are selected and with A–1 at VIH
the upper 8 bits of the 16 bit data are selected.
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