參數(shù)資料
型號: μPD789187
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位單片機微控制器(8位單片微控制器)
文件頁數(shù): 134/146頁
文件大小: 630K
代理商: ΜPD789187
Preliminary Product Information
134
μ
PD789186, 789187, 789196, 789197
LOW-VOLTAGE INDICATION (LVI) CHARACTERISTICS (T
A
=
40
°
C to +85
°
C, V
DD
= 1.8 to 5.5 V
)
(1) DC characteristics
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Detected voltage
V
LVI
3.55
4.00
4.55
V
Hysteresis
V
HYS
0.1
V
Operating current
I
LVI0
The low-voltage indication is operating.
30
100
μ
A
I
LVI1
The low-voltage indication is stopped (STOP
mode).
0
μ
A
(2) AC characteristics
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Response delay time
t
D
|
Detected voltage
V
DD
|
0.45 V
200
μ
s
Minimum pulse width
t
W
500
μ
s
Operation start time
t
STA
After operation is enabled
500
μ
s
DATA MEMORY STOP MODE LOW POWER SUPPLY VOLTAGE DATA HOLD CHARACTERISTICS
(T
A
=
40
°
C to +85
°
C)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Data hold supply
voltage
V
DDDR
1.8
5.5
V
Release signal set time
t
SREL
0
μ
s
Oscillation settling time
t
WAIT
Reset by RESET
2
15
/f
X
ms
Reset by an interrupt
Note
ms
Note
A selection can be made from 2
oscillation settling time selection register.
12
/f
X
, 2
15
/f
X
, and 2
17
/f
X
with bit 0 through bit 2 (OSTS0-OSTS2) of the
Remark
f
X
: Main system clock oscillation frequency
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