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参数资料
| 型号： | M48T513Y-85CS1 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO32 |
| 封装： | SNAPHAT, PLASTIC, SO-44 |
| 文件页数： | 26/31页 |
| 文件大小： | 168K |
| 代理商： | M48T513Y-85CS1 |
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M48T513Y, M48T513V
4/31
DESCRIPTION
The M48T513Y/V TIMEKEEPER RAM is a
512 Kb x 8 non-volatile static RAM and real time
clock, with programmable alarms and a watchdog
timer. The special DIP package provides a fully in-
tegrated battery back-up memory and real time
clock solution. The M48T513Y/V directly replaces
industry standard 512 Kb x 8 SRAM. It also pro-
vides the non-volatility of Flash without any re-
quirement for special WRITE timing or limitations
on the number of WRITEs that can be performed.
For surface mount environments ST provides a
Chip Set solution consisting of a 44-pin, 330mil
SOIC TIMEKEEPER Supervisor (M48T201V/Y)
and a 32-pin TSOP Type II (10 x 20mm) LPSRAM
(M68Z512/W) packages.
The 44-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.
The unique design allows the SNAPHAT battery
package to be mounted on top of the SOIC pack-
age after the completion of the surface mount pro-
cess. Insertion of the SNAPHAT housing after
reflow prevents potential battery damage due to
the high temperatures required for device surface-
mounting. The SNAPHAT housing is keyed to pre-
vent reverse insertion.
The SNAPHAT battery package is shipped sepa-
rately in plastic anti-static tubes or in Tape & Reel
form. The part number is “M4Txx-BR12SH1” (see
Table 15, page 24).
Figure 3. Logic Diagram
Table 1. Signal Names
AI02308
19
A0-A18
DQ0-DQ7
VCC
M48T513Y
M48T513V
G
VSS
8
E
W
RST
IRQ/FT
RSTIN
WDI
A0-A18
Address Inputs
DQ0-DQ7
Data Inputs / Outputs
E
Chip Enable Input
G
Output Enable Input
W
WRITE Enable Input
WDI
Watchdog input
RST
Reset Output (open drain)
RSTIN
Reset Input
IRQ/FT
Interrupt / Frequency Test
Output (open drain)
VCC
Supply Voltage
VSS
Ground
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M48T513Y-85PM1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513YPM | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513YSH | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T559 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM with ADDRESS/DATA MULTIPLEXED |
| M48T559Y | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM with ADDRESS/DATA MULTIPLEXED |
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