參數(shù)資料
型號: μPD789800
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 39/48頁
文件大?。?/td> 266K
代理商: ΜPD789800
39
μ
PD789800
DATA HOLD CHARACTERISTICS OF DATA MEMORY AT LOW VOLTAGE IN STOP MODE
(T
A
= -40
°
C to +85
°
C)
Item
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Data hold supply
voltage
V
DDDR
4.0
5.5
V
Release signal set
time
t
SREL
0
μ
s
Reset by
RESET
2
15
/f
X
ms
Oscillation settling
time
Note 1
t
WAIT
Reset by interrupt request
Note 2
ms
Notes 1.
During the oscillation settling time, CPU operations are disabled to prevent them from becoming
unstable upon the start of oscillation.
2
oscillation settling time selection register.
2.
12
/f
X
, 2
15
/f
X
, or 2
17
/f
X
can be selected according to the setting of bits 0 to 2 (OSTS0 to OSTS2) of the
Remark
f
X
: System clock oscillation frequency
DATA HOLD TIMING (STOP mode release by RESET )
V
DD
Data hold mode
STOP mode
HALT mode
Internal reset operation
Operating mode
t
SREL
t
WAIT
STOP instruction execution
V
DDDR
RESET
DATA HOLD TIMING (standby release signal: STOP mode release by interrupt signal)
V
DD
Data hold mode
STOP mode
HALT mode
Operating mode
t
SREL
t
WAIT
STOP instruction execution
V
DDDR
Standby release signal
(interrupt request)
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