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M48Z32V-35MT1F

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
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List of figures M48Z32V
4/19
List of figures
Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. SOIC connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. Read mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 5. Write enable controlled, write mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6. Chip enable controlled, write mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7. Supply voltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 8. SO44 – 44-lead plastic, small package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
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M48Z32V Summary
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1 Summary
The M48Z32V ZEROPOWER
®
RAM is a 32K x 8, non-volatile static RAM that integrates
power-fail deselect circuitry and battery control logic on a single die.
The 44-pin, 330mil SOIC provides a battery pin for an external, user-supplied battery. This is
all that is required to fully non-volatize the SRAM.
Figure 1. Logic diagram
Table 1. Signal names
A0-A14 Address inputs
DQ0-DQ7 Data inputs / outputs
E Chip enable input
G Output enable input
W WRITE enable input
V
CC
Supply voltage
V
SS
Ground
B + Positive battery pin
NC Not connected
AI04787
15
A0-A14
W
DQ0-DQ7
V
CC
M48Z32V
G
V
SS
8
B +
E
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Summary M48Z32V
6/19
Figure 2. SOIC connections
Note: NF, Pin 7 must be tied to V
SS
.
Figure 3. Block diagram
AI04786
22
44
43
V
SS
1
A2
NF
NC
NC
A3
NC
NC
G
CE
NC
NC
W
NC
NC
A10
V
CC
M48Z32V
10
2
5
6
7
8
9
11
12
13
14
15
21
40
39
36
35
34
33
32
31
30
29
28
A4
A5
A9
A13
3
4
38
37
42
41
A1
A0
DQ7
DQ5DQ0
DQ1
DQ3
DQ4
DQ6
16
17
18
19
20
27
26
25
24
23
NC
NC
NC
A12
A6
A7
B +
NC
NC
NC
A11
A14
DQ2
A8
AI04788
LITHIUM
CELL
V
PFD
V
CC
V
SS
VOLTAGE SENSE
AND
SWITCHING
CIRCUITRY
32K x 8
SRAM ARRAY
A0-A14
DQ0-DQ7
E
W
G
POWER
USER
SUPPLIED
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P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

M48Z32V-35MT1F

Mfr. #:
Buy M48Z32V-35MT1F
Manufacturer:
STMicroelectronics
Description:
NVRAM 256K (32Kx8) 35ns
Lifecycle:
New from this manufacturer.
Delivery:
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