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參數資料
| 型號： | MAX809 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Octal Bus Transceivers With 3-State Outputs 20-CDIP -55 to 125 |
| 中文描述： | 3引腳微處理器復位電路 |
| 文件頁數： | 3/8頁 |
| 文件大小： | 119K |
| 代理商： | MAX809 |
MAX809, MAX810
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(VCC = Full Range, TA =
–40
°
C to +85
°
C unless otherwise noted
. typical values are at TA
= +25C, VCC = 5V for L/M/J, 3.3V for T/S, 3.0V for R)
(Note NO TAG)
Symbol
Characteristic
Min
Typ
Max
Unit
VCC Range
TA = 0
°
C to +70
°
C
TA = –40
°
C to +85
°
C
1.0
1.2
—
—
5.5
5.5
V
ICC
Supply Current
MAX8xxL/M/J: VCC < 5.5V
MAX8xxR/S/T: VCC < 3.6V
—
—
24
17
60
50
μ
A
VTH
Reset Threshold (Note NO TAG)
MAX8xxL: TA = 25
°
C
TA = –40
°
C to +85
°
C
MAX8xxM: TA = 25
°
C
TA = –40
°
C to +85
°
C
MAX809J: TA = 25
°
C
TA = –40
°
C to +85
°
C
MAX8xxT: TA = 25
°
C
TA = –40
°
C to +85
°
C
MAX8xxS: TA = 25
°
C
TA = –40
°
C to +85
°
C
MAX8xxR: TA = 25
°
C
TA = –40
°
C to +85
°
C
4.56
4.50
4.31
4.25
3.93
3.89
3.04
3.00
2.89
2.85
2.59
2.55
4.63
—
4.38
—
4.00
—
3.08
—
2.93
—
2.63
—
4.70
4.75
4.45
4.50
4.06
4.10
3.11
3.15
2.96
3.00
2.66
2.70
V
Reset Threshold Temperature Coefficient
—
30
—
ppm/
°
C
VCC to Reset Delay VCC = VTH to (VTH – 100mV)
—
20
—
μ
sec
Reset Active Timeout Period
140
240
560
msec
VOL
RESET Output Voltage Low (MAX809)
MAX809R/S/T: VCC = VTH min, ISINK = 1.2mA
MAX809L/M/J: VCC = VTH min, ISINK = 3.2mA
VCC > 1.0V, ISINK = 50
μ
A
—
—
—
—
—
—
0.3
0.4
0.3
V
VOH
RESET Output Voltage High (MAX809)
MAX809R/S/T: VCC > VTH max, ISOURCE = 500
μ
A
MAX809L/M/J: VCC > VTH max, ISOURCE = 800
μ
A
0.8 VCC
VCC – 1.5
—
—
—
—
V
VOL
RESET Output Voltage Low (MAX810)
MAX810R/S/T: VCC = VTH max, ISINK = 1.2mA
MAX810L/M/J: VCC = VTH max, ISINK = 3.2mA
—
—
—
—
0.3
0.4
V
VOH
RESET Output Voltage High (MAX810)
1.8 < VCC < VTH min, ISOURCE = 150
μ
A
1. Production testing done at TA = 25
°
C, over temperature limits guaranteed by design.
0.8 VCC
—
—
V
PIN DESCRIPTION
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2
á
RESET (MAX810)
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á
after VCC rises above reset threshold
after VCC rises above reset threshold
RESET output remains low while VCC is below the reset voltage threshold, and for 240msec (typ.)
3
VCC
Supply Voltage (typ.)
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