音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

X51638V14 Datasheet

  • X51638V14

  • SPI Serial EEPROM with Supervisory Features

  • 21頁(yè)

  • ETC

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

X51638
CPU Supervisor with 16Kb SPI EEPROM
FEATURES
鈥?Extended Power-On Reset (800ms Nominal)
鈥?Selectable Watchdog Timer
鈥?Low Vcc Detection and Reset Assertion
鈥擣ive Standard Reset Threshold Voltages
鈥擱e-program Low Vcc Reset Threshold Voltage
using special programming sequence
鈥擱eset Signal Valid to Vcc=1V
鈥?Determine Watchdog or Low Voltage Reset with
a Volatile Flag bit
鈥?Long Battery Life With Low Power Consumption
鈥?lt;50
m
A Max Standby Current, Watchdog On
鈥?lt;1
m
A Max Standby Current, Watchdog Off
鈥?lt;400
m
A Max Active Current during Read
鈥?16Kbits of EEPROM
鈥?Built-in Inadvertent Write Protection
鈥擯ower-Up/Power-Down Protection Circuitry
鈥擯rotect 0, 1/4, 1/2 or all of EEPROM Array with
Block Lock
TM
Protection
鈥擨n Circuit Programmable ROM Mode
鈥?2MHz SPI Interface Modes (0,0 & 1,1)
鈥?Minimize EEPROM Programming Time
鈥?2 Byte Page Write Mode
鈥擲elf-Timed Write Cycle
鈥?ms Write Cycle Time (Typical)
鈥?1.8V to 3.6V, 2.7V to 5.5V and 4.5V to 5.5V Power
Supply Operation
鈥?Available Packages
鈥?4-Lead TSSOP, 8-Lead SOIC
BLOCK DIAGRAM
WATCHDOG TRANSITION
DETECTOR
WATCHDOG
TIMER RESET
DESCRIPTION
This device combines four popular functions, Power-on
Reset Control, Watchdog Timer, Supply Voltage Supervi-
sion, and Block Lock鈩?Protect Serial EEPROM in one
package. This combination lowers system cost, reduces
board space requirements, and increases reliability.
Applying power to the device activates a power on reset
circuit which holds RESET active for a period of time.
This allows the power supply and oscillator to stabilize
before the processor can execute code. This device
allows 800ms before releasing the controller.
The Watchdog Timer provides an independent protection
mechanism for microcontrollers. When the microcontrol-
ler fails to restart a timer within a selectable time-out
interval, the device activates the RESET signal. The user
selects the interval from three preset values. Once
selected, the interval does not change, even after cycling
the power.
The X51638 low Vcc detection circuitry protects the
user鈥檚 system from low voltage conditions, resetting the
system when Vcc falls below the minimum Vcc trip point.
RESET is asserted until Vcc returns to proper operating
level and stabilizes. Five industry standard V
TRIP
thresh-
olds are available, however, Xicor鈥檚 unique circuits allow
the thresold to be reprogrammed to meet custom
requirements or to 鏗乶e-tune the threshold for applications
requiring higher precision.
WP
SI
SO
SCK
CS/WDI
DATA
REGISTER
COMMAND
CONTROL
LOGIC
VCC THRESHOLD
RESET LOGIC
PROTECT LOGIC
RESET
STATUS
REGISTER
RESET &
WATCHDOG
TIMEBASE
4K BITS
8K BITS
EEPROM ARRAY
DECODE &
4K BITS
V
CC
V
TRIP
+
-
POWER ON AND
LOW VOLTAGE
RESET
GENERATION
脫
Xicor, Inc. 1999 Patents Pending
9900-3002.10 2/12/99 T0/C0/D0
1
Characteristics subject to change without notice

X51638V14相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫(kù)提出的寶貴意見，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！