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參數(shù)資料
| 型號： | M48T08-150MH1 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| 中文描述： | 64千位的8kB × 8計時器的SRAM |
| 文件頁數(shù)： | 20/27頁 |
| 文件大?。?/td> | 398K |
| 代理商： | M48T08-150MH1 |
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M48T08, M48T08Y, M48T18
20/27
Figure 14. Power Down/Up Mode AC Waveforms
Note: Inputs may or may not be recognized at this time. Caution should be taken to keep E1 high or E2 low as V
CC
rises past V
PFD
(min).
Some systems may perform inadvertent WRITE cycles after V
CC
rises above V
PFD
(min) but before normal system operations begin.
Even though a power on reset is being applied to the processor, a reset condition may not occur until after the system clock is running.
Table 10. Power Down/Up AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
A
= 0 to 70°C; V
CC
= 4.75 to 5.5V or 4.5 to 5.5V (except where noted).
2. V
PFD
(max) to V
PFD
(min) fall time of less than t
F
may result in deselection/write protection not occurring until 200μs after V
CC
pass-
es V
PFD
(min).
3. V
PFD
(min) to V
SS
fall time of less than t
FB
may cause corruption of RAM data.
Table 11. Power Down/Up Trip Points DC Characteristics
Note: 1. All voltages referenced to V
SS
.
2. Valid for Ambient Operating Temperature: T
A
= 0 to 70°C; V
CC
= 4.75 to 5.5V or 4.5 to 5.5V (except where noted).
3. At 55°C, V
CC
= 0V; t
DR
= 8.5 years (typ) at 70°C. Requires use of M4T32-BR12SH SNAPHAT
top when using the SOH28 package.
Symbol
Parameter
(1)
Min
Max
Unit
t
PD
E1 or W at V
IH
or E2 at V
IL
before Power Down
0
μs
t
F(2)
V
PFD
(max) to V
PFD
(min) V
CC
Fall Time
300
μs
t
FB(3)
V
PFD
(min) to V
SS
V
CC
Fall Time
10
μs
t
R
V
PFD
(min) to V
PFD
(max) V
CC
Rise Time
0
μs
t
RB
V
SS
to V
PFD
(min) V
CC
Rise Time
1
μs
t
rec
E1 or W at V
IH
or E2 at V
IL
before Power Up
1
ms
t
PFX
INT Low to Auto Deselect
10
40
μs
t
PFH
V
PFD
(max) to INT High
120
μs
Symbol
Parameter
(1,2)
Min
Typ
Max
Unit
V
PFD
Power-fail Deselect Voltage
M48T08
4.5
4.6
4.75
V
M48T18/T08Y
4.2
4.3
4.5
V
V
SO
Battery Back-up Switchover Voltage
3.0
V
t
DR
Expected Data Retention Time
10
(3)
AI00566
VCC
VPFD (max)
INPUTS
INT
(PER CONTROL INPUT)
OUTPUTS
DON'T CARE
HIGH-Z
tF
tFB
tPFX
tR
tPFH
trec
tPD
tRB
tDR
VALID
VALID
NOTE
(PER CONTROL INPUT)
RECOGNIZED
RECOGNIZED
VPFD (min)
VSO
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| M48T129V-70PM1 | 3.3V-5V 1 Mbit 128Kb x8 TIMEKEEPER SRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48T08-150MH1E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T08-150MH1F | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T08-150MH1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CMOS 8K x 8 TIMEKEEPER SRAM |
| M48T08-150PC | 制造商:STMicroelectronics 功能描述:SRAM TIMEKEEPER 64K 48T08 DIP28 |
| M48T08-150PC | 制造商:STMicroelectronics 功能描述:SRAM TIMEKEEPER 64K 48T08 DIP28 |
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