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參數(shù)資料
| 型號： | M48TY-85MH1TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 3.3V-5V TIMEKEEPER CONTROLLER |
| 中文描述： | 3.3 - 5V的計時控制器 |
| 文件頁數(shù)： | 4/33頁 |
| 文件大?。?/td> | 477K |
| 代理商： | M48TY-85MH1TR |
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M48T201Y, M48T201V
4/33
DESCRIPTION
The M48T201Y/V are self-contained devices that
include a real time clock (RTC), programmable
alarms, a watchdog timer, and a square wave out-
put which provides control of up to 512K x 8 of ex-
ternal low-power static RAM. Access to all RTC
functions and the external RAM is the same as
conventional bytewide SRAM. The 16 TIME-
KEEPER
registers offer year, month, date, day,
hour, minute, second, calibration, alarm, century,
watchdog, and square wave output data. External-
ly attached static RAMs are controlled by the
M48T201Y/V via the G
CON
and E
CON
signals.
The 44-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.
Insertion of the SNAPHAT housing after reflow
prevents potential battery damage due to the high
temperatures required for device surface-mount-
ing. The SNAPHAT housing is keyed to prevent
reverse insertion. The SOIC and battery packages
are shipped separately in plastic anti-static tubes
or in Tape & Reel form. For the 44-lead SOIC, the
battery/crystal package (e.g., SNAPHAT) part
number
is
“M4Txx-BR12SH”
19., page 31
).
Caution:
Do not place the SNAPHAT battery/crys-
tal top in conductive foam as this will drain the lith-
ium button-cell battery.
(see
Table
Figure 2. Logic Diagram
Table 1. Signal Names
AI02240
19
A0-A18
WDI
DQ0-DQ7
VCC
M48T201Y
M48T201V
G
VSS
8
E
ECON
GCON
W
RSTIN2
RSTIN1
RST
IRQ/FT
VOUT
SQW
A0-A18
Address Inputs
DQ0-DQ7
Data Inputs / Outputs
RSTIN1
Reset 1 Input
RSTIN2
Reset 2 Input
RST
Reset Output (Open Drain)
WDI
Watchdog Input
E
Chip Enable Input
G
Output Enable Input
W
WRITE Enable Input
E
CON
RAM Chip Enable Output
G
CON
RAM Enable Output
IRQ/FT
Interrupt / Frequency Test Output
(Open Drain)
SQW
Square Wave Output
V
OUT
Supply Voltage Output
V
CC
Supply Voltage
V
SS
Ground
NC
Not Connected Internally
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M48TY-85PM1 | 3.3V-5V 1 Mbit 128Kb x8 TIMEKEEPER SRAM |
| M48Z02 | 16 Kbit 2Kb x 8 ZEROPOWER SRAM |
| M48Z02-150PC1 | FILTER SAW BANDPASS 44MHZ |
| M48Z02-150PC1TR | FILTER SAW BANDPASS 44MHZ 5-SIP |
| M48Z02-150PC6 | 5V, 16 Kbit (2Kb x 8) ZEROPOWER SRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48TY-85PM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 1 Mbit 128Kb x8 TIMEKEEPER SRAM |
| M48Z02 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V, 16Kbit (2Kb x 8) ZEROPOWER SRAM |
| M48Z02_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5V, 16Kbit (2Kb x 8) ZEROPOWER SRAM |
| M48Z02_10 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5 V, 16 Kbit (2 Kb x 8) ZEROPOWER? SRAM |
| M48Z02_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5 V, 16 Kbit (2 Kb x 8) ZEROPOWER?? SRAM |
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