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参数资料
| 型号： | M48T08SH |
| 厂商： | 意法半导体 |
| 英文描述： | 64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| 中文描述： | 64千位的8kB × 8计时器的SRAM |
| 文件页数： | 4/27页 |
| 文件大小： | 398K |
| 代理商： | M48T08SH |
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M48T08, M48T08Y, M48T18
4/27
SUMMARY DESCRIPTION
The M48T08/18/08Y TIMEKEEPER
RAM is an
8K x 8 non-volatile static RAM and real time clock
which is pin and functional compatible with the
DS1643. The monolithic chip is available in two
special packages to provide a highly integrated
battery backed-up memory and real time clock so-
lution.
The M48T08/18/08Y is a non-volatile pin and func-
tion equivalent to any JEDEC standard 8K x 8
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
M48T08/18/08Y 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 con-
taining 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.
The SOIC and battery/crystal packages are
shipped separately in plastic anti-static tubes or in
Tape & Reel form. For the 28 lead SOIC, the bat-
tery/crystal package (e.g., SNAPHAT) part num-
ber is “M4T28-BR12SH” or “M4T32-BR12SH”
(see
Table 17., page 25
).
Figure 3. Logic Diagram
Table 1. Signal Names
AI01020
13
A0-A12
W
DQ0-DQ7
VCC
M48T08
M48T08Y
M48T18
G
E2
VSS
8
E1
INT
A0-A12
Address Inputs
DQ0-DQ7
Data Inputs / Outputs
INT
Power Fail Interrupt (Open Drain)
E1
Chip Enable 1
E2
Chip Enable 2
G
Output Enable
W
WRITE Enable
V
CC
Supply Voltage
V
SS
Ground
相关PDF资料 |
PDF描述 |
|---|---|
| M48T08-100MH1 | High Q MLC; Capacitor Type:High Q; Capacitance:6.8pF; Capacitance Tolerance:+/- 0.25pF; Voltage Rating:3000VDC; Capacitor Dielectric Material:Multilayer Ceramic; Termination:SMD; Dielectric Characteristic:C0G/NP0; Series:HQCC RoHS Compliant: Yes |
| M48T08-150MH1 | 64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T129YSH | Hook-Up Wire; Conductor Size AWG:24; No. Strands x Strand Size:Solid; Jacket Color:Brown; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1061; CSA AWM; Conductor Material:Copper; Conductor Plating:Tin RoHS Compliant: Yes |
| M48T129Y-85CS1 | 3.3V-5V 1 Mbit 128Kb x8 TIMEKEEPER SRAM |
| M48T129Y-85PM1 | 3.3V-5V 1 Mbit 128Kb x8 TIMEKEEPER SRAM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M48T08Y | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5V, 64Kbit (8 Kb x 8) TIMEKEEPER㈢ SRAM |
| M48T08Y-100MH1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T08Y-100MH1E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T08Y-100MH1F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T08Y-100MH1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
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