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参数资料
| 型号： | DS3070W-100# |
| 厂商： | Maxim Integrated |
| 文件页数： | 14/18页 |
| 文件大小： | 0K |
| 描述： | IC NVSRAM 16MBIT 100NS 256BGA |
| 标准包装： | 18 |
| 格式 - 存储器： | RAM |
| 存储器类型： | NVSRAM（非易失 SRAM） |
| 存储容量： | 16M（2M x 8） |
| 速度： | 100ns |
| 接口： | 并联 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 256-BBGA |
| 供应商设备封装： | 256-BGA（27x27） |
| 包装： | 托盘 |
3.3V Single-Piece 16Mb Nonvolatile SRAM
with Clock
Table 3. Alarm Mask Bits
AM4
1
1
1
1
0
AM3
1
1
1
0
0
AM2
1
1
0
0
0
AM1
1
0
0
0
0
ALARM RATE
Once per second
When seconds match
When minutes and seconds match
When hours, minutes, and seconds match
When date, hours, minutes, and seconds match
When the RTC register values match alarm register set-
tings, the alarm flag (AF) is set to a 1. If AE is also a 1,
the alarm condition activates the IRQ /FT output. When
CS is active, the IRQ /FT signal can be cleared by hold-
ing the FLAGS register address stable for t RC and forc-
ing either OE or WE active (see Figure 1). The flag does
not change state until the end of the read/write cycle
and after the IRQ /FT signal has deasserted. To avoid
inadvertently clearing the IRQ /FT signal while preparing
The IRQ /FT output can also be activated during battery
backup mode. The IRQ /FT goes low if an alarm occurs
and both AE and ABE are set to 1. The AE and ABE
bits are reset to 0 during the power-up transition, but an
alarm generated during power-up will set AF to a 1.
Therefore, the AF bit can be read after system power-
up to determine if an alarm was generated during the
power-up sequence. Figure 3 illustrates alarm timing
during battery backup mode and power-up states.
for subsequent write/read cycles at other register
addresses, assure that t AW is met for that subsequent
address (see Figure 2).
CE
WE OR OE
CS
t RC MAX
A0 – A3
IRQ/FT
Figure 1. Clearing Active IRQ Waveforms
ADDRESS 0h
HIGH
IMPEDANCE
14
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相关代理商/技术参数 |
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|---|---|
| DS3070W-100# | 功能描述:NVRAM RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| DS-308 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Three-Way Power Dividers 1300 MHz |
| DS-308 N | 制造商:M/A-COM Technology Solutions 功能描述:THREE-WAY PWR DIVIDER 10PIN FP-3 - Bulk |
| DS308BNC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| DS-308BNC | 制造商:MA-COM 制造商全称:M/A-COM Technology Solutions, Inc. 功能描述:Three-Way Power Dividers 1 - 300 MHz |
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