參數(shù)資料
型號(hào): BQ4845S-A4NTRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: XO, clock
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO28
封裝: 0.300 INCH, GREEN, SOIC-28
文件頁(yè)數(shù): 12/24頁(yè)
文件大?。?/td> 1287K
代理商: BQ4845S-A4NTRG4
Functional Description
Figure 1 is a block diagram of the bq4845. The follow-
ing sections describe the bq4845 functional operation
including clock interface, data-retention modes,
power-on reset timing, watchdog timer activation, and
interrupt generation.
2
Figure 1. Block Diagram
VCC
CS
OE
WE
CEOUT
VOUT
Mode
DQ
Power
<VCC (max.)
VIH
XX
CEIN
VOUT1
Deselect
High Z
Standby
VIL
XVIL
CEIN
VOUT1
Write
DIN
Active
>VCC (min.)
VIL
VIH
CEIN
VOUT1
Read
DOUT
Active
VIL
VIH
CEIN
VOUT1
Read
High Z
Active
<VPFD (min.) > VSO
XXX
VOH
VOUT1
Deselect
High Z
CMOS standby
≤ VSO
XXX
VOHB
VOUT2
Deselect
High Z
Battery-backup mode
Truth Table
Aug. 1995
bq4845/bq4845Y
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BQ4845S-A4TR 功能描述:實(shí)時(shí)時(shí)鐘 w/NVSRAM Control Watchdog Timer RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
BQ4845S-A4TRG4 制造商:TI 制造商全稱:Texas Instruments 功能描述:Parallel RTC With CPU Supervisor
BQ4845S-N 制造商:TI 制造商全稱:Texas Instruments 功能描述:Parallel RTC With CPU Supervisor
BQ4845Y 制造商:TI 制造商全稱:Texas Instruments 功能描述:Parallel RTC With CPU Supervisor
BQ4845YP 制造商:未知廠家 制造商全稱:未知廠家 功能描述: