參數(shù)資料
型號(hào): UPD780018
廠商: NEC Corp.
元件分類(lèi): DC/DC變換器
英文描述: 1 watt dc-dc converters
中文描述: 1瓦的DC - DC轉(zhuǎn)換器
文件頁(yè)數(shù): 48/58頁(yè)
文件大小: 552K
代理商: UPD780018
48
μ
PD78044H, 78045H, 78046H
DATA MEMORY STOP MODE LOW SUPPLY VOLTAGE DATA RETENTION CHARACTERISTICS
(T
A
= –40 to +85
°
C)
Note
Selection of 2
12
/f
X
, 2
14
/f
X
to 2
17
/f
X
is available by bits 0 to 2 (OSTS0 to OSTS2) of the oscillation settling
time select register (OSTS).
Data retention timing
(STOP mode release by RESET)
Data retention timing
(standby release signal: STOP mode release by interrupt signal)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Data retention supply
voltage
V
DDDR
2.0
5.5
V
Data retention supply
current
I
DDDR
V
DDDR
= 2.0 V
Subsystem clock stopped
Feedback resistor not connected
0.1
10
μ
A
Release signal set time
t
SREL
0
μ
s
Oscillation settling time
t
WAIT
Release by RESET
2
17
/f
X
ms
Release by interrupt
Note
ms
STOP mode
Data retention mode
t
WAIT
Operating mode
HALT mode
STOP instruction execution
V
DDDR
V
DD
Standby release signal
(interrupt request)
t
SREL
STOP mode
Data retention mode
t
WAIT
Operating mode
HALT mode
Internal reset operation
STOP instruction execution
V
DDDR
V
DD
RESET
t
SREL
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