MAX820(1998) 데이터 시트보기 (PDF) - Maxim Integrated
부품명
상세내역
제조사
MAX820 Datasheet PDF : 16 Pages
| |||
Microprocessor and Non-Volatile
Memory Supervisory Circuits
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.65V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
CONDITIONS
OVERVOLTAGE COMPARATOR
OVI Input Threshold
VCC = 5V or VCC = 3V
OVI Leakage Current
OVO Output Voltage
OVO Short-Circuit Current
ISINK = 3.2mA
ISOURCE = 1µA
Output source current, VCC = 5.5V
OVI to OVO Delay
CHIP-ENABLE GATING
VOD = 100mV, OVI rising
VOD = 100mV, OVI falling
CE IN Threshold Voltage
VCC = 4.25V
VIH
VIL
VCC = 2.55V
VIH
VIL
CE IN Leakage Current
Disabled mode
CE IN to CE OUT Resistance
Enabled mode
CE OUT Short-Circuit Current Disabled mode, CEOUT = 0V
Chip-Enable Propagation Delay 50Ω source impedance driver,
(Note 3)
CLOAD = 50pF
VCC = 5V
VCC = 3V
VCC = 5V
VCC = 3V
VCC = 5V
VCC = 3V
Chip-Enable Output Voltage
High (Reset Active)
Reset Active to CE OUT High
IOUT = -100µA
IOUT = 10µA
VCC falling
MANUAL RESET
MR Minimum Pulse Width
MIN
TYP MAX
1.25
1.30 1.35
±0.01 ±25
0.4
VCC - 1
10
50
13
55
0.75 x VCC
0.8
0.75 x VCC
0.2
±0.005 ±1
75
150
150
300
0.5
2.5
0.05
0.2
0.4
6
10
8
13
VCC - 1
VCC - 0.5
15
25
UNITS
V
nA
V
µA
µs
V
µA
Ω
mA
ns
V
µs
µs
MR to RESET Propagation Delay
12
µs
MR Threshold Range
MR Pull-Up Current
MR = 0V
1.1
1.3
1.5
V
VCC = 4.25V
to VCC = 5.5V
5
23
80
µA
VCC = 2.5V
1
Note 1: The minimum operating voltage is 2.65V; however, the device is guaranteed to operate down to its preset reset threshold.
Note 2: Pulling RESET IN/INT below 60mV selects internal threshold mode and connects the internal voltage divider to the reset
and low-line comparators. External programming mode allows an external resistor divider to set the low-line and reset
thresholds (see Figure 4).
Note 3: The Chip-Enable Propagation delay is measured from the 50% point at CE IN to the 50% point at CE OUT.
4 _______________________________________________________________________________________
Share Link: 