Datasheet > M48T59Y-70PC6

M48T59Y-70PC6

更新时间： 2024-11-10 22:17:47

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
21页	169K
描述
64 Kbit 8Kb x8 TIMEKEEPER SRAM

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中文翻译

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数据手册

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M48T59Y-70PC6 数据手册

M48T59

M48T59Y/M48T59V

64 Kbit (8Kb x8) TIMEKEEPER SRAM

PRELIMINARY DATA

■ INTEGRATED ULTRA LOW POWER SRAM,

SNAPHAT (SH)

Battery/Crytstal

REAL TIME CLOCK, POWER-FAIL CONTROL

CIRCUIT and BATTERY

■ FREQUENCY TEST OUTPUT for REAL TIME

CLOCK SOFTWARE CALIBRATION

■ AUTOMATIC POWER-FAIL CHIP DESELECT

and WRITE PROTECTION

■ WRITE PROTECT VOLTAGES

PFD

= Power-fail Deselect Voltage):

PCDIP28 (PC)

Battery/Crystal

CAPHAT

– M48T59: 4.5V ≤ V

≤ 4.75V

PFD

– M48T59Y: 4.2V ≤ V

≤ 4.5V

≤ 3.0V

PFD

SOH28 (MH)

– M48T59V: 2.7V ≤ V

■ SELF-CONTAINED BATTERY and CRYSTAL

in the CAPHAT DIP PACKAGE

■ PACKAGING INCLUDES a 28-LEAD SOIC and

Figure 1. Logic Diagram

SNAPHAT TOP

(to be Ordered Separately)

■ SOIC PACKAGE PROVIDES DIRECT

CONNECTION for a SNAPHAT TOP which

CONTAINS the BATTERY and CRYSTAL

■ MICROPROCESSOR POWER-ON RESET

(Valid even during battery back-up mode)

■ PROGRAMMABLE ALARM OUTPUT ACTIVE

in the BATTERY BACK-UP MODE

A0-A12

DQ0-DQ7

■ BATTERY LOW FLAG

Table 1. Signal Names

M48T59

M48T59Y

M48T59V

A0-A12

Address Inputs

IRQ/FT

RST

DQ0-DQ7

Data Inputs / Outputs

Interrupt / Frequency Test

Output (Open Drain)

IRQ/FT

RST

Power Fail Reset Output

(Open Drain)

Chip Enable

Output Enable

Write Enable

Supply Voltage

Ground

AI01380E

October 1999

1/21

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

12 3 4 5 6 7...21

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