參數(shù)資料
型號: M34556M8H-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO42
封裝: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁數(shù): 40/147頁
文件大?。?/td> 1087K
代理商: M34556M8H-XXXFP
Rev.3.02
Dec 22, 2006
page 132 of 142
REJ03B0025-0302
4556 Group
VOLTAGE DROP DETECTION CIRCUIT CHARACTERISTICS
(Mask ROM version: Ta = –20 °C to 85 °C, unless otherwise noted)
Test conditions
Ta = 25 °C
-20 °C
≤ Ta < 0 °C
0 °C
≤ Ta < 50 °C
50 °C
≤ Ta ≤ 85 °C
Ta = 25 °C
-20 °C
≤ Ta < 0 °C
0 °C
≤ Ta < 50 °C
50 °C
≤ Ta ≤ 85 °C
VDD = 5 V
VDD = 3 V
VDD
→ (VRST– – 0.1 V)
Parameter
Detection voltage
(reset occurs) (Note 2)
Detection voltage
(reset release) (Note 3)
Detection voltage hysteresis
Operation current (Note 4)
Detection time (Note 5)
Symbol
VRST–
VRST+
VRST+
VRST–
IRST
TRST
Limits
Unit
Min.
1.6
1.7
1.4
1.2
1.7
1.8
1.5
1.3
Typ.
1.8
1.9
0.1
50
30
0.2
Max.
2
2.3
2.2
1.9
2.1
2.4
2.3
2
100
60
1.2
V
A
ms
Notes 1: The voltage drop detection circuit is equipped with only the H version.
2: The detection voltage (VRST–) is defined as the voltage when reset occurs when the supply voltage (VDD) is falling.
3: The detection voltage (VRST+) is defined as the voltage when reset is released when the supply voltage (VDD) is rising from reset occurs.
4: In the H version, IRST is added to IDD (power current).
5: The detection time (TRST) is defined as the time until reset occurs when the supply voltage (VDD) is falling to [VRST– – 0.1 V].
6: The detection voltages (VRST+, VRST–) are set up lower than the minimum value of the supply voltage of the recommended operating conditions.
As for details, refer to the LIST OF PRECAUTIONS.
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