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參數(shù)資料
| 型號： | X5643(中文) |
| 元件分類： | CPU監(jiān)測 |
| 英文描述： | RTC Module With CPU Supervisor |
| 中文描述： | 時(shí)鐘模塊CPU監(jiān)控 |
| 文件頁數(shù)： | 5/23頁 |
| 文件大?。?/td> | 114K |
| 代理商： | X5643(中文) |
X5643/X5645
5
SPI SERIAL MEMORY
The memory portion of the device is a CMOS Serial
EEPROM array with Xicor’s Block Lock
array is internally organized as x 8. The device features a
Serial Peripheral Interface (SPI) and software protocol
allowing operation on a simple four-wire bus.
TM
Protection. The
The device utilizes Xicor’s proprietary Direct Write
providing a minimum endurance of 100,000 cycles and a
minimum data retention of 100 years.
TM
cell,
The device is designed to interface directly with the syn-
chronous Serial Peripheral Interface (SPI) of many popu-
lar microcontroller families. It contains an 8-bit instruction
register that is accessed via the SI input, with data being
clocked in on the rising edge of SCK. CS must be LOW
during the entire operation.
All instructions (Table 1), addresses and data are trans-
ferred MSB first. Data input on the SI line is latched on the
first rising edge of SCK after CS goes LOW. Data is out-
put on the SO line by the falling edge of SCK. SCK is
static, allowing the user to stop the clock and then start it
again to resume operations where left off.
Write Enable Latch
The device contains a Write Enable Latch. This latch must
be SET before a Write Operation is initiated. The WREN
instruction will set the latch and the WRDI instruction will
reset the latch (Figure 3). This latch is automatically reset
upon a power-up condition and after the completion of a
valid Write Cycle.
Status Register
The RDSR instruction provides access to the Status Reg-
ister. The Status Register may be read at any time, even
during a Write Cycle. The Status Register is formatted as
follows:
The Write-In-Progress (WIP) bit is a volatile, read only bit
and indicates whether the device is busy with an internal
nonvolatile write operation. The WIP bit is read using the
RDSR instruction. When set to a “1”, a nonvolatile write
operation is in progress. When set to a “0”, no write is in
progress.
7
6
5
4
3
2
1
0
WPEN
FLB
WD1
WD0
BL1
BL0
WEL
WIP
Table 1. Instruction Set
*Instructions are shown MSB in leftmost position. Instructions are transferred MSB first.
Table 2. Block Protect Matrix
Instruction Name
WREN
Instruction Format*
0000 0110
Operation
Set the Write Enable Latch (Enable Write Operations)
Set Flag Bit
Reset the Write Enable Latch/Reset Flag Bit
Read Status Register
Write Status Register(Watchdog,BlockLock,WPEN & Flag Bits)
Read Data from Memory Array Beginning at Selected Address
Write Data to Memory Array Beginning at Selected Address
SFLB
0000 0000
WRDI/RFLB
0000 0100
RSDR
0000 0101
WRSR
0000 0001
READ
0000 0011
WRITE
0000 0010
WREN CMD
STATUS
REGISTER
DEVICE
PIN
BLOCK
BLOCK
STATUS
REGISTER
WPEN, BL0, BL1
WD0, WD1
Protected
Protected
Writable
Writable
WEL
0
1
1
1
WPEN
X
1
0
X
WP#
X
0
X
1
PROTECTED
BLOCK
Protected
Protected
Protected
Protected
UNPROTECTED
BLOCK
Protected
Writable
Writable
Writable
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X5643P | 功能描述:IC CPU SUPRV 64K EE RST LO 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復(fù)位:低有效 復(fù)位超時(shí):標(biāo)準(zhǔn)傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
| X5643P-4.5A | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 64Kbit SPI EEPROM |
| X5643S14 | 功能描述:IC CPU SUPRV 64K EE RST LO SO14 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復(fù)位:低有效 復(fù)位超時(shí):標(biāo)準(zhǔn)傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
| X5643S14-1.8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPI Serial EEPROM with Supervisory Features |
| X5643S14-2.7 | 功能描述:IC CPU SUPRV 64K EE RST LO SO14 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復(fù)位:低有效 復(fù)位超時(shí):標(biāo)準(zhǔn)傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
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