參數(shù)資料
型號(hào)： M40Z300WMQ
廠商： 意法半導(dǎo)體
英文描述： NVRAM CONTROLLER for up to EIGHT LPSRAM
中文描述： NVRAM中多達(dá)8個(gè)LPSRAM控制器
文件頁(yè)數(shù)： 5/16頁(yè)
文件大小： 128K
代理商： M40Z300WMQ
5/16
M40Z300, M40Z300W
POWER-ON RESET OUTPUT
All microprocessors have a reset input which forc-
es them to a known state when starting. The
M40Z300/W has a reset output (RST) pin which is
guaranteed to be low within t
WPT
of V
PFD
(See Ta-
ble 7). This signal is an open drain configuration.
An appropriate pull-up resistor should be chosen
to control the rise time. This signal will be valid for
all voltage conditions, even when V
CC
equals V
SS
.
Once V
CC
exceeds the power failure detect volt-
age V
PFD
, an internal timer keeps RST low for
t
REC
to allow the power supply to stabilize.
TWO TO FOUR DECODE
The M40Z300/W includes a 2 input (A, B) decoder
which allows the control of up to 4 independent
SRAMs. The Truth Table for these inputs is shown
in Table 3.
Figure 4. Hardware Hookup
AI02395
VCC
E
E1CON
VSS
VOUT
VCC
CMOS
SRAM
3.0V, 3.3V or 5V
THS
A
0.1
μ
F
0.1
μ
F
M40Z300
M40Z300W
Threshold
E
B
E2CON
E3CON
E4CON
RST
BL
E
VCC
CMOS
SRAM
0.1
μ
F
E
VCC
CMOS
SRAM
0.1
μ
F
E
VCC
CMOS
SRAM
0.1
μ
F
To Microprocessor
To Battery Monitor Circuit
相關(guān)PDF資料
PDF描述
M40Z300WMQ1 NVRAM CONTROLLER for up to EIGHT LPSRAM
M40Z300WMQ1TR NVRAM CONTROLLER for up to EIGHT LPSRAM
M40Z300WSH NVRAM CONTROLLER for up to EIGHT LPSRAM
M40Z300MH1 NVRAM CONTROLLER for up to EIGHT LPSRAM
M40Z300MQ1 CAP CER 4.7UF 4.0V 20% 0603 SMD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M40Z300WMQ1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:NVRAM CONTROLLER for up to EIGHT LPSRAM
M40Z300WMQ1E 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V or 3V NVRAM supervisor for up to 8 LPSRAMs
M40Z300WMQ1F 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V or 3V NVRAM supervisor for up to 8 LPSRAMs
M40Z300WMQ1TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V or 3V NVRAM Supervisor for Up to 8 LPSRAMs
M40Z300WMQ6 功能描述:監(jiān)控電路 Up to 8 Lo Pwr SRAM 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: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(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
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