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M27V320-120N1 Folha de dados(PDF) 2 Page - STMicroelectronics

Nome de Peças M27V320-120N1
Descrição Electrónicos  32 Mbit (4Mb x8 or 2Mb x16) OTP EPROM
Download  15 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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M27V320
2/15
Figure 3. TSOP Connections
AI05854
M27V320
12
1
13
24
25
36
37
48
GVPP
Q0
Q8
A3
A0
E
VSS
A2
A1
A13
VSS
A14
A15
Q7
A12
A16
BYTE
Q15A–1
Q5
Q2
Q3
VCC
Q11
Q4
Q14
A9
A19
A18
A4
A20
A7
Q1
Q9
A6
A5
Q6
Q13
A11
A10
Q10
Q12
A17
A8
VSS
VCC
VSS
VSS
VSS
Figure 2. SO Connections
GVPP
Q0
Q8
A3
A0
E
VSS
A2
A1
A13
VSS
A14
A15
Q7
A12
A16
BYTE
Q15A–1
Q5
Q2
Q3
VCC
Q11
Q4
Q14
A9
A19
A18
A4
NC
A20
A7
AI05853
M27V320
8
2
3
4
5
6
7
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
20
19
18
17
Q1
Q9
A6
A5
Q6
Q13
44
39
38
37
36
35
34
33
A11
A10
Q10
21
Q12
40
43
1
42
41
A17
A8
Table 1. Signal Names
A0-A20
Address Inputs
Q0-Q7
Data Outputs
Q8-Q14
Data Outputs
Q15A–1
Data Output / Address Input
E
Chip Enable
GVPP
Output Enable / Program Supply
BYTE
Byte-Wide Select
VCC
Supply Voltage
VSS
Ground
NC
Not Connected Internally
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-
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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