參數(shù)資料
型號(hào): BQ4847Y
英文描述: Fast Recovery Glass Passivated Rectifier Diodes
中文描述: 時(shí)鐘模塊CPU監(jiān)控
文件頁數(shù): 2/20頁
文件大小: 1155K
代理商: BQ4847Y
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
V
CC
CS
OE
WE
CE
OUT
V
OUT
Mode
DQ
Power
< V
CC
(max.)
V
IH
X
X
CE
IN
V
OUT1
Deselect
High Z
Standby
V
IL
X
V
IL
CE
IN
V
OUT1
Write
D
IN
Active
> V
CC
(min.)
V
IL
V
IL
V
IH
CE
IN
V
OUT1
Read
D
OUT
Active
V
IL
V
IH
V
IH
CE
IN
V
OUT1
Read
High Z
Active
< V
PFD
(min.) > V
SO
X
X
X
V
OH
V
OUT1
Deselect
High Z
CMOS standby
V
SO
X
X
X
V
OHB
V
OUT2
Deselect
High Z
Battery-backup mode
Truth Table
Aug. 1995
bq4845/bq4845Y
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