M28C17 데이터 시트보기 (PDF) - STMicroelectronics
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M28C17 Datasheet PDF : 17 Pages
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M28C17
Figure 2A. DIP Pin Connections
RB 1
NC 2
28 VCC
27 W
A7 3
26 NC
A6 4
25 A8
A5 5
24 A9
A4 6
23 NC
A3 7
22 G
M28C17
A2 8
21 A10
A1 9
20 E
A0 10
19 DQ7
DQ0 11
18 DQ6
DQ1 12
17 DQ5
DQ2 13
16 DQ4
VSS 14
15 DQ3
AI01506B
Warning: NC = Not Connected.
Figure 2C. SO Pin Connections
RB
NC
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
1
28
2
27
3
26
4
25
5
24
6
23
7
22
M28C17
8
21
9
20
10
19
11
18
12
17
13
16
14
15
AI01507B
VCC
W
NC
A8
A9
NC
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
Warning: NC = Not Connected.
2/17
Figure 2B. LCC Pin Connections
A6
A5
A4
A3
A2 9
A1
A0
NC
DQ0
1 32
M28C17
17
A8
A9
NC
NC
25 G
A10
E
DQ7
DQ6
AI01508C
Warning: NC = Not Connected, DU = Don’t Use.
DESCRIPTION (cont’d)
and software handshaking with Ready/Busy, Data
Polling and Toggle Bit. The M28C17 supports 64
byte page write operation. A Software Data Protec-
tion (SDP) is also possible using the standard
JEDEC algorithm.
PIN DESCRIPTION
Addresses (A0-A10). The address inputs select
an 8-bit memory location during a read or write
operation.
Chip Enable (E). The chip enable input must be
low to enable all read/write operations. When Chip
Enable is high, power consumption is reduced.
Output Enable (G). The Output Enable input con-
trols the data output buffers and is used to initiate
read operations.
Data In/ Out (DQ0 - DQ7). Data is written to or read
from the M28C17 through the I/O pins.
Write Enable (W). The Write Enable input controls
the writing of data to the M28C17.
Ready/Busy (RB). Ready/Busy is an open drain
output that can be used to detect the end of the
internal write cycle.
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