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參數(shù)資料
| 型號： | M48T59V-70MH1TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 64 Kbit 8Kb x8 TIMEKEEPER SRAM |
| 中文描述： | 64千位8KB的x8 SRAM的計時器 |
| 文件頁數(shù)： | 3/21頁 |
| 文件大?。?/td> | 168K |
| 代理商： | M48T59V-70MH1TR |
3/21
M48T59, M48T59Y, M48T59V
DESCRIPTION
The M48T59/59Y/59V TIMEKEEPER
RAM is an
8Kb x8 non-volatile static RAM and real time clock.
The monolithic chip is available in two special
packages to provide a highly integrated battery
backed-up memory and real time clock solution.
The M48T59/59Y/59V is a non-volatile pin and
function equivalent to any JEDEC standard 8Kb x8
SRAM. It also easily fits into many ROM, EPROM,
and EEPROM sockets, providing the non-volatility
of PROMs without any requirement for special
write timing or limitations on the number of writes
that can be performed.
The 28 pin 600mil DIP CAPHAT houses the
M48T59/59Y/59V silicon with a quartz crystal and
a long life lithium button cell in a single package.
The 28 pin 330mil SOIC provides sockets with
gold plated contacts at both ends for direct con-
nection to a separate SNAPHAT housing contain-
ing the battery and crystal. The unique design
allows the SNAPHAT battery package to be
mounted on top of the SOIC package after the
completion of the surface mount process. Inser-
tion of the SNAPHAT housing after reflow pre-
vents potential battery and crystal damage due to
the high temperatures required for device surface-
mounting. The SNAPHAT housing is keyed to pre-
vent reverse insertion.
Table 4. AC Measurement Conditions
Note that Output Hi-Z is defined as the point where data is no longer
driven.
Input Rise and Fall Times
≤
5ns
Input Pulse Voltages
0 to 3V
Input and Output Timing Ref. Voltages
1.5V
Figure 3. Block Diagram
AI01383D
LITHIUM
CELL
OSCILLATOR AND
CLOCK CHAIN
VPFD
RST
VCC
VSS
32,768 Hz
CRYSTAL
VOLTAGE SENSE
AND
SWITCHING
CIRCUITRY
16 x 8 BiPORT
SRAM ARRAY
8176 x 8
SRAM ARRAY
A0-A12
DQ0-DQ7
E
W
G
POWER
IRQ/FT
Figure 4. AC Testing Load Circuit
Note: Excluding open-drain output pins.
AI02325
CL = 100pF
CL includes JIG capacitance
645
DEVICE
UNDER
TEST
1.75V
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PDF描述 |
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| M48T59V-70MH6 | 64 Kbit 8Kb x8 TIMEKEEPER SRAM |
| M48T59Y-70MH6 | 64 Kbit 8Kb x8 TIMEKEEPER SRAM |
| M48T59Y-70MH6TR | 64 Kbit 8Kb x8 TIMEKEEPER SRAM |
| M48T59Y-70PC6 | 64 Kbit 8Kb x8 TIMEKEEPER SRAM |
| M48T59Y-70PC6TR | 64 Kbit 8Kb x8 TIMEKEEPER SRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48T59V-70MH6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM |
| M48T59V-70MH6TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM |
| M48T59V-70PC1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3 V, 64 Kbit (8 Kbit x 8) TIMEKEEPER? SRAM |
| M48T59V-70PC1E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3 V, 64 Kbit (8 Kbit x 8) TIMEKEEPER? SRAM |
| M48T59V-70PC1F | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3 V, 64 Kbit (8 Kbit x 8) TIMEKEEPER? SRAM |
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