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參數(shù)資料
| 型號： | M48Z512AY |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 4 Mbit 512Kb x8 ZEROPOWER SRAM |
| 中文描述： | 4兆位的SRAM 512KB的x8 ZEROPOWER |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 101K |
| 代理商： | M48Z512AY |
3/17
M48Z512A, M48Z512AY
The M48Z512A/512AY also has itsown Power-fail
Detect circuit. Thecontrol circuitry constantlymon-
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 broughton by low V
CC
. As V
CC
falls
below approximately 3V, the control circuitry con-
nects the battery which maintains data until valid
power returns.
The ZEROPOWER RAM replaces industry stan-
dard SRAMs. It provides the nonvolatility of
PROMs without any requirement for special write
Figure 3. Block Diagram
AI02045
INTERNAL
BATTERY
E
VCC
VSS
VOLTAGE SENSE
AND
SWITCHING
CIRCUITRY
512K x
8
SRAM ARRAY
A0-A18
DQ0-DQ7
W
G
POWER
E
timing or limitations on the number of writes that
can be performed.
The M48Z512A/512AY has itsown Power-fail De-
tect Circuit. The control circuitry constantly moni-
tors 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 operations brought on by low V
CC
. As V
CC
falls below approximately 3V, the control circuitry
connects thebattery which sustainsdata untilvalid
power returns.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M48Z512ASH | 4 Mbit 512Kb x8 ZEROPOWER SRAM |
| M48Z512APM | 4 Mbit 512Kb x8 ZEROPOWER SRAM |
| M48Z512ACS | 4 Mbit 512Kb x8 ZEROPOWER SRAM |
| M48Z58YSH | Hook-Up Wire; Conductor Size AWG:24; No. Strands x Strand Size:Solid; Jacket Color:Purple; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1061; CSA AWM; Conductor Material:Copper; Jacket Material:Polyvinylchloride (PVC) RoHS Compliant: Yes |
| M48Z58Y-70MH1 | 64 Kbit 8Kb x 8 ZEROPOWER SRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48Z512AY-70CS1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8 ZEROPOWER SRAM |
| M48Z512AY-70CS9 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8 ZEROPOWER SRAM |
| M48Z512AY-70PM1 | 功能描述:NVRAM 4M (512Kx8) 70ns RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
| M48Z512AY-70PM1E | 制造商:STMicroelectronics 功能描述: |
| M48Z512AY-70PM6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit (512 Kbit x 8) ZEROPOWER? SRAM |
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