M29F080A-70N1 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M29F080A-70N1 Datasheet PDF : 21 Pages
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M29F080A
Figure 2. TSOP Connections
A19
A18
A17
A16
A15
A14
A13
A12
E
VCC
NC
RP
A11
A10
A9
A8
A7
A6
A5
A4
1
40
10 M29F080A 31
11
30
20
21
AI00520B
NC
NC
W
G
RB
DQ7
DQ6
DQ5
DQ4
VCC
VSS
VSS
DQ3
DQ2
DQ1
DQ0
A0
A1
A2
A3
Figure 3. SO Connections
NC
RP
A11
A10
A9
A8
A7
A6
A5
A4
NC
NC
A3
A2
A1
A0
DQ0
DQ1
DQ2
DQ3
VSS
VSS
1
44
2
43
3
42
4
41
5
40
6
39
7
38
8
37
9
36
10
35
11 M29F080A 34
12
33
13
32
14
31
15
30
16
29
17
28
18
27
19
26
20
25
21
24
22
23
AI00521B
VCC
E
A12
A13
A14
A15
A16
A17
A18
A19
NC
NC
NC
NC
W
G
RB
DQ7
DQ6
DQ5
DQ4
VCC
Table 1. Signal Names
A0-A19
Address Inputs
DQ0-DQ7 Data Inputs/Outputs
E
Chip Enable
G
Output Enable
W
Write Enable
RP
Reset/Block Temporary Unprotect
RB
Ready/Busy Output
VCC
Supply Voltage
VSS
Ground
NC
Not Connected Internally
SUMMARY DESCRIPTION
The M29F080A is an 8 Mbit (1Mb x8) non-volatile
memory that can be read, erased and repro-
grammed. These operations can be performed us-
ing a single 5V supply. On power-up the memory
defaults to its Read mode where it can be read in
the same way as a ROM or EPROM.
The memory is divided into blocks that can be
erased independently so it is possible to preserve
valid data while old data is erased. Blocks can be
protected in groups to prevent accidental Program
or Erase commands from modifying the memory.
Program and Erase commands are written to the
Command Interface of the memory. An on-chip
Program/Erase Controller simplifies the process of
programming or erasing the memory by taking
care of all of the special operations that are re-
quired to update the memory contents. The end of
a program or erase operation can be detected and
any error conditions identified. The command set
required to control the memory is consistent with
JEDEC standards.
Chip Enable, Output Enable and Write Enable sig-
nals control the bus operation of the memory.
They allow simple connection to most micropro-
cessors, often without additional logic.
The memory is offered in a TSOP40 (10 x 20mm)
and SO44 packages and it is supplied with all the
bits erased (set to ’1’).
2/21
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