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參數(shù)資料
| 型號： | M40Z111WMH6TR |
| 廠商： | 意法半導體 |
| 英文描述： | 5V OR 3V NVRAM SUPERVISOR FOR UP TO TWO LPSRAMs |
| 中文描述： | 5V或3V NVRAM中的主管，直到兩名LPSRAMs |
| 文件頁數(shù)： | 3/15頁 |
| 文件大?。?/td> | 114K |
| 代理商： | M40Z111WMH6TR |
3/15
M40Z111, M40Z111W
SUMMARY DESCRIPTION
The M40Z111/W NVRAM SUPERVISOR is a self-
contained device which converts a standard low-
power SRAM into a non-volatile memory.
A precision voltage reference and comparator
monitors the V
CC
input for an out-of-tolerance con-
dition.
When an invalid V
CC
condition occurs, the condi-
tioned chip enable (E
CON
) output is forced inactive
to write-protect the stored data in the SRAM.
During a power failure, the SRAM is switched from
the V
CC
pin to the lithium cell within the
SNAPHAT
to provide the energy required for
data retention. On a subsequent power-up, the
SRAM remains write protected until a valid power
condition returns.
The 28-pin, 330mil SOIC provides sockets with
gold plated contacts at both ends for direct con-
nection to a separate SNAPHAT housing contain-
ing the battery. The unique design allows the
SNAPHAT battery package to be mounted on top
of the SOIC package after the completion of the
surface mount process.
Insertion of the SNAPHAT housing after reflow
prevents potential battery damage due to the high
temperatures required for device surface-mount-
ing. The SNAPHAT housing is keyed to prevent
reverse insertion.
The SOIC and battery packages are shipped sep-
arately in plastic anti-static tubes or in Tape & Reel
form. For the 28-lead SOIC, the battery package
(e.g.,
SNAPHAT)
part
BR00SH” or “M4Z32-BR00SH” (See Table 8,
page 10).
number
is
“M4Z28-
Figure 2. Logic Diagram
Table 1. Signal Names
Figure 3. SOIC28 Connections
AI02238B
THS
VCC
M40Z111
M40Z111W
ECON
VSS
E
VOUT
THS
Threshold Select Input
E
Chip Enable Input
E
CON
Conditioned Chip Enable Output
V
OUT
Supply Voltage Output
V
CC
Supply Voltage
V
SS
Ground
NC
Not Connected Internally
AI02239B
8
9
10
11
12
13
14
2
3
4
5
6
7
22
21
20
19
18
17
16
15
28
27
26
25
24
23
1
NC
NC
NC
NC
THS
VSS
NC
NC
NC
VCC
NC
VCC
NC
NC
NC
NC
NC
NC
NC
NC
NC
E
NC
ECON
NC
NC
VOUT
VCC
M40Z111
M40Z111W
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M40Z111 | NVRAM Controller for up to Two LPSRAM(NVRAM控制器) |
| M40Z300AV | 3V NVRAM Supervisor for Up to 8 LPSRAMs |
| M40Z300AVMH1E | 3V NVRAM Supervisor for Up to 8 LPSRAMs |
| M40Z300AVMH1F | 3V NVRAM Supervisor for Up to 8 LPSRAMs |
| M40Z300AVMH6E | 3V NVRAM Supervisor for Up to 8 LPSRAMs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M40Z111WSH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:NVRAM CONTROLLER for up to TWO LPSRAM |
| M40Z300 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V or 3V NVRAM supervisor for up to 8 LPSRAMs |
| M40Z300_05 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V or 3V NVRAM Supervisor for Up to 8 LPSRAMs |
| M40Z300_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V or 3V NVRAM supervisor for up to 8 LPSRAMs |
| M40Z300_10 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5 V or 3 V NVRAM supervisor for up to 8 LPSRAMs |
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