- 您现在的位置：买卖IC网 > PDF目录359064 > M48T08-100MH1 (意法半导体) 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 PDF资料下载
参数资料
| 型号： | M48T08-100MH1 |
| 厂商： | 意法半导体 |
| 英文描述： | 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 |
| 中文描述： | 64千位的8kB × 8计时器的SRAM |
| 文件页数： | 6/27页 |
| 文件大小： | 398K |
| 代理商： | M48T08-100MH1 |
第1页第2页第3页第4页第5页当前第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页
M48T08, M48T08Y, M48T18
6/27
OPERATION MODES
As
Figure 6., page 5
shows, the static memory ar-
ray and the quartz-controlled clock oscillator of the
M48T08/18/08Y are integrated on one silicon chip.
The two circuits are interconnected at the upper
eight memory locations to provide user accessible
BYTEWIDE clock information in the bytes with
addresses 1FF8h-1FFFh.
The clock locations contain the year, month, date,
day, hour, minute, and second in 24 hour BCD for-
mat. Corrections for 28, 29 (leap year - valid until
2100), 30, and 31 day months are made automat-
ically. Byte 1FF8h is the clock control register. This
byte controls user access to the clock information
and also stores the clock calibration setting.
The eight clock bytes are not the actual clock
counters themselves; they are memory locations
consisting of BiPORT READ/WRITE memory
cells. The M48T08/18/08Y includes a clock control
circuit which updates the clock bytes with current
information once per second. The information can
be accessed by the user in the same manner as
any other location in the static memory array.
The M48T08/18/08Y also has its own Power-fail
Detect circuit. The control circuitry constantly mon-
itors the single 5V supply for an out of tolerance
condition. When V
CC
is out of tolerance, the circuit
write protects the SRAM, providing a high degree
of data security in the midst of unpredictable sys-
tem operation brought on by low V
CC
. As V
CC
falls
below the Battery Back-up Switchover Voltage
(V
SO
), the control circuitry connects the battery
which maintains data and clock operation until val-
id power returns.
Table 2. Operating Modes
Note: X = V
IH
or V
IL
;
V
SO
= Battery Back-up Switchover Voltage.
1. See
Table 11., page 20
for details.
Mode
V
CC
E1
E2
G
W
DQ0-DQ7
Power
Deselect
4.75 to 5.5V
or
4.5 to 5.5V
V
IH
X
X
X
High Z
Standby
Deselect
X
V
IL
X
X
High Z
Standby
WRITE
V
IL
V
IH
X
V
IL
D
IN
Active
READ
V
IL
V
IH
V
IL
V
IH
D
OUT
Active
READ
V
IL
V
IH
V
IH
V
IH
High Z
Active
Deselect
V
SO
to V
PFD
(min)
(1)
X
X
X
X
High Z
CMOS Standby
Deselect
≤
V
SO(1)
X
X
X
X
High Z
Battery Back-up Mode
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| M48T129V-70CS1 | 3.3V-5V 1 Mbit 128Kb x8 TIMEKEEPER SRAM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M48T08-100MH1E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T08-100MH1F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T08-100MH1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T08-100PC1 | 功能描述:实时时钟 64K (8Kx8) 100ns RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| M48T08-100PC1 | 制造商:STMicroelectronics 功能描述:SRAM TIMEKEEPER 64K 48T08 DIP28 |
发布紧急采购，3分钟左右您将得到回复。