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M40Z300WMQ1TR

更新时间： 2024-09-14 22:08:39

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		静态存储器控制器
页数	文件大小	规格书
16页	130K
描述
NVRAM CONTROLLER for up to EIGHT LPSRAM

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中文翻译

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数据手册

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M40Z300WMQ1TR 数据手册

M40Z300

M40Z300W

NVRAM CONTROLLER for up to EIGHT LPSRAM

■ CONVERT LOW POWER SRAMs into

NVRAMs

SNAPHAT (SH)

Battery

■ PRECISION POWER MONITORING and

POWER SWITCHING CIRCUITRY

■ AUTOMATIC WRITE-PROTECTION when V

is OUT-OF-TOLERANCE

■ TWO INPUT DECODER ALLOWS CONTROL

for up to 8 SRAMs (with 2 devices active in

parallel)

■ CHOICE of SUPPLY VOLTAGES and

POWER-FAIL DESELECT VOLTAGES:

SO16 (MQ)

SOH28 (MH)

– M40Z300:

= 4.5V to 5.5V

THS = V 4.5V ≤ V

≤ 4.75V

PFD

THS = V

4.2V ≤ V

≤ 4.5V

OUT

PFD

– M40Z300W:

= 3.0V to 3.6V

Figure 1. Logic Diagram

THS = V 2.8V ≤ V

≤ 3.0V

≤ 2.7V

PFD

= 2.7V to 3.3V

B+⁽¹⁾

THS = V

2.5 ≤ V

OUT

PFD

■ RESET OUTPUT (RST) for POWER ON

RESET

■ LESS THAN 12ns CHIP ENABLE ACCESS

THS

OUT

PROPAGATION DELAY (for 5.0V device)

■ PACKAGING INCLUDES a 28-LEAD SOIC

and SNAPHAT TOP, or a 16-LEAD SOIC

(to be Ordered Separately)

CON

M40Z300

M40Z300W

■ SOIC PACKAGE PROVIDES DIRECT

CONNECTION for a SNAPHAT TOP which

CONTAINS the BATTERY

■ BATTERY LOW PIN (BL)

DESCRIPTION

RST

The M40Z300/W NVRAM Controller is a self-con-

tained device which converts a standard low-pow-

er SRAM into a non-volatile memory. A precision

voltage reference and comparator monitors the

B–⁽¹⁾

input for an out-of-tolerance condition.

NOTE: 1. For 16-pin SOIC package only.

AI02242

March 2000

1/16

12 3 4 5 6 7...16

中文翻译

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M40ZMQ1E	STMICROELECTRONICS	获取价格	5V or 3V NVRAM supervisor for up to 8 LPSRAMs