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參數(shù)資料
| 型號： | M48ST59W-70MH1TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO44 |
| 封裝： | 0.330 INCH, SNAPHAT, PLASTIC, SOH-44 |
| 文件頁數(shù)： | 24/29頁 |
| 文件大小： | 158K |
| 代理商： | M48ST59W-70MH1TR |
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M48ST59W
4/29
SUMMARY DESCRIPTION
The M48ST59W SUPERVISORY TIMEKEEPER
RAM is an 8Kbit x 8 non-volatile static RAM and
real time clock. The monolithic chip is available in
a surface mount package to provide a highly inte-
grated battery backed-up memory and real time
clock solution. The 44-pin, 330mil SOIC package
provides sockets with gold-plated contacts at both
ends
for
direct
connection
to
a
separate
SNAPHAT housing containing the battery and
crystal. The unique design allows the SNAPHAT
battery package to be attached after the surface
mount process.
Insertion of the SNAPHAT housing after reflow
prevents potential battery and crystal damage due
to the high temperatures required for device sur-
face-mounting. The SNAPHAT housing is keyed to
prevent reverse insertion. The SOIC and battery/
crystal packages are shipped separately in plastic,
anti-static tubes or in Tape & Reel form (see Table
15, page 24 for the part numbering scheme.)
The battery/crystal package (e.g., SNAPHAT) part
number is “M4T28-BR12SH” or “M4T32-BR12SH”
(see Table 16, page 24).
Caution: Do not place the SNAPHAT battery/crys-
tal package “M4TXX-BR12SH” in conductive
foam, as this will drain the lithium button-cell bat-
tery.
Figure 2. Logic Diagram
Table 1. Signal Names
13
A0-A12
W
DQ0-DQ7
VCC
M48ST59W
G
VSS
8
E
PFI
PFO
RST
IRQ/FT
AI04600
A0-A12
Address inputs
DQ0–DQ7
Data Inputs/Outputs
IRQ/FT
Interrupt/Frequency Test Output
(Open Drain)
RST
Reset Output (Open Drain)
E
Chip Enable
G
Output Enable Input
W
WRITE Enable Input
PFO
Power Fail Output
PFI
Power Fail Input
VCC
Supply Voltage Input
VSS
Ground
相關PDF資料 |
PDF描述 |
|---|---|
| M48ST59W-100MH1 | 0 TIMER(S), REAL TIME CLOCK, PDSO44 |
| M48T02-150PC1 | 0 TIMER(S), REAL TIME CLOCK, PDIP24 |
| M48T18-100MH1TR | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
| M48T18-100MH1 | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
| M48T18-150PC1 | 0 TIMER(S), REAL TIME CLOCK, PDIP28 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M48T02 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0V, 16 Kbit (2Kb x 8) TIMEKEEPER SRAM |
| M48T02_03 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0V, 16 Kbit (2Kb x 8) TIMEKEEPER㈢ SRAM |
| M48T02_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0V, 16 Kbit (2Kb x 8) TIMEKEEPER SRAM |
| M48T02_10 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 V, 16 Kbit (2 Kb x 8) TIMEKEEPER? SRAM |
| M48T02-120PC1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CMOS 8K x 8 TIMEKEEPER SRAM |
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