Datasheet > M48T37VMH

M48T37VMH

更新时间： 2024-09-25 22:15:43

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		静态存储器
页数	文件大小	规格书
20页	130K
描述
3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM

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中文翻译

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数据手册

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M48T37VMH 数据手册

M48T37Y

M48T37V

3.3V-5V 256 Kbit (32Kb x8) TIMEKEEPER SRAM

■ INTEGRATED ULTRA-LOW POWER SRAM,

REAL TIME CLOCK, POWER-FAIL CONTROL

CIRCUIT and BATTERY

SNAPHAT (SH)

Battery

■ FREQUENCY TEST OUTPUT for REAL TIME

CLOCK SOFTWARE CALIBRATION

■ YEAR 2000 COMPLIANT

■ AUTOMATIC POWER-FAIL CHIP DESELECT

and WRITE PROTECTION

■ WATCHDOG TIMER

■ WRITE PROTECT VOLTAGE

= Power-Fail Deselect Voltage):

PFD

SOH44 (MH)

– M48T37Y: 4.2V ≤ V

– M48T37V: 2.7V ≤ V

≤ 4.5V

≤ 3.0V

PFD

■ PACKAGING INCLUDES a44-LEAD SOIC and

SNAPHAT TOP (to be Ordered Separately)

■ SOIC PACKAGE PROVIDES DIRECT

CONNECTION for a SNAPHAT TOP which

CONTAINS the BATTERY and CRYSTAL

Figure 1. Logic Diagram

■ MICROPROCESSOR POWER-ON RESET

(Valid even during battery back-up mode)

■ PROGRAMMABLE ALARM OUTPUT ACTIVE

in the BATTERY BACKED-UP

■ BATTERY LOW FLAG

A0-A14

DQ0-DQ7

Table 1. Signal Names

A0-A14

DQ0-DQ7

RST

Address Inputs

RST

M48T37Y

M48T37V

Data Inputs / Outputs

IRQ/FT

Power Fail Reset Output (Open Drain)

Interrupt / Frequency Test Output

(Open Drain)

IRQ/FT

WDI

Watchdog Input

Chip Enable

Output Enable

Write Enable

AI02172

Supply Voltage

Ground

Not connected Internally

February 2000

1/20

12 3 4 5 6 7...20

中文翻译

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与M48T37VMH相关器件

型号	品牌	获取价格	描述	数据表
M48T37VSH	STMICROELECTRONICS	获取价格	3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T37Y	STMICROELECTRONICS	获取价格	3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T37Y_10	STMICROELECTRONICS	获取价格	5.0 or 3.3 V, 256 Kbit (32 Kbit x 8) TIMEKEEP
M48T37Y-10MH1	STMICROELECTRONICS	获取价格	3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T37Y-10MH1E	STMICROELECTRONICS	获取价格	3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T37Y-10MH1F	STMICROELECTRONICS	获取价格	3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T37Y-10MH1TR	STMICROELECTRONICS	获取价格	3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T37Y-10MH6	STMICROELECTRONICS	获取价格	3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T37Y-10MH6E	STMICROELECTRONICS	获取价格	3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM
M48T37Y-10MH6F	STMICROELECTRONICS	获取价格	3.3V-5V 256 Kbit 32Kb x8 TIMEKEEPER SRAM