參數(shù)資料
型號(hào)： M40Z111SH
廠(chǎng)商： 意法半導(dǎo)體
英文描述： NVRAM CONTROLLER for up to TWO LPSRAM
中文描述： NVRAM中控制器長(zhǎng)達(dá)2 LPSRAM
文件頁(yè)數(shù)： 1/12頁(yè)
文件大小： 89K
代理商： M40Z111SH
M40Z111
M40Z111W
NVRAM CONTROLLER for up to TWO LPSRAM
February 1999
1/12
CONVERT LOW POWER SRAMs into
NVRAMs
PRECISION POWER MONITORING and
POWER SWITCHING CIRCUITRY
AUTOMATIC WRITE-PROTECTION when V
CC
is OUT-OF-TOLERANCE
CHOICE of SUPPLY VOLTAGES and
POWER-FAIL DESELECT VOLTAGES:
– M40Z111:
V
CC
= 4.5V to 5.5V
THS = V
SS
4.5V
≤
V
PFD
≤
4.75V
THS = V
OUT
4.2V
≤
V
PFD
≤
4.5V
– M40Z111W:
V
CC
= 3.0V to 3.6V
THS = V
SS
2.8V
≤
V
PFD
≤
3.0V
V
CC
= 2.7V to 3.3V
THS = V
OUT
2.5
≤
V
PFD
≤
2.7V
LESS THAN 15ns CHIP ENABLE ACCESS
PROPAGATION DELAY (for 5.0V device)
PACKAGING INCLUDES a 28-LEAD SOIC
and SNAPHAT
TOP
(to be Ordered Separately)
SOIC PACKAGE PROVIDES DIRECT
CONNECTION for a SNAPHAT TOP which
CONTAINS the BATTERY
DESCRIPTION
The M40Z111/111W NVRAM Controller 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.
AI02238B
THS
VCC
M40Z111
M40Z111W
ECON
VSS
E
VOUT
Figure 1. Logic Diagram
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
Table 1. Signal Names
SNAPHAT (SH)
Battery
28
1
SOH28 (MH)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M40Z111W 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:5V or 3V NVRAM supervisor for up to two LPSRAMs
M40Z111WMH 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:NVRAM CONTROLLER for up to TWO LPSRAM
M40Z111WMH6 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:5V OR 3V NVRAM SUPERVISOR FOR UP TO TWO LPSRAMs
M40Z111WMH6E 功能描述:監(jiān)控電路 N-Ch, 5V or 3V NVRAM up to 2 LPSRAMs RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
M40Z111WMH6F 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:5V or 3V NVRAM supervisor for up to two LPSRAMs
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