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参数资料
| 型号： | DS2252T-64-16 |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Microcontroller |
| 英文描述： | 8-BIT, MICROCONTROLLER, SMA40 |
| 封装： | SIMM-40 |
| 文件页数： | 14/15页 |
| 文件大小： | 125K |
| 代理商： | DS2252T-64-16 |
DS2252T
021998 8/15
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
–0.3V to +7.0V
Operating Temperature
0
°C to 70°C
Storage Temperature
–40
°C to +70°C
Soldering Temperature
260
°C for 10 seconds
* This is a stress rating only and functional operation of the device at these or any other conditions above those
indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods of time may affect reliability.
DC CHARACTERISTICS
(tA=0°C to 70°C; VCC=5V ± 10%)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Low Voltage
VIL
–0.3
+0.8
V
1
Input High Voltage
VIH1
2.0
VCC+0.3
V
1
Input High Voltage (RST, XTAL1,
PROG)
VIH2
3.5
VCC+0.3
V
1
Output Low Voltage
@ IOL=1.6 mA (Ports 1, 2, 3)
VOL1
0.15
0.45
V
1
Output Low Voltage
@ IOL=3.2 mA (Ports 0, ALE)
VOL2
0.15
0.45
V
1
Output High Voltage
@ IOH=–80 A (Ports 1, 2, 3)
VOH1
2.4
4.8
V
1
Output High Voltage
@ IOH=–400 A (Ports 0, ALE)
VOH2
2.4
4.8
V
1
Input Low Current VIN=0.45V
(Ports 1, 2, 3)
IIL
–50
A
Transition Current; 1 to 0
VIN=2.0V (Ports 1, 2, 3)
ITL
–500
A
Input Leakage Current
0.45<VIN<VCC (Port 0)
IIL
±10
A
RST Pulldown Resistor
RRE
40
150
K
Power Fail Warning Voltage
VPRW
4.25
4.37
4.50
V
1
Minimum Operating Voltage
VCCMIN
4.00
4.12
4.25
V
1
Operating Current @ 16 MHz
ICC
45
mA
4
Idle Mode Current @ 12 MHz
IIDLE
7.0
mA
5
Stop Mode current
ISTOP
80
A
6
Pin Capacitance
CIN
10
pF
7
Reset Trip Point in Stop Mode
w/BAT=3.0V
w/BAT=3.3V
4.0
4.4
4.25
4.65
V
1
SDI Input Low Voltage
VILS
0.4
V
1
SDI Input High Voltage
VIHS
2.0
VCC
V
1, 2
SDI Input High Voltage
VIHS
2.0
3.5
V
1, 2
SDI Pull–Down Resistor
RSDI
25
60
K
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