MAX6850 데이터 시트보기 (PDF) - Maxim Integrated
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MAX6850 Datasheet PDF : 34 Pages
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4-Wire Interfaced, 7-, 14-, and 16-Segment Alpha-
numeric Vacuum-Fluorescent Display Controller
ABSOLUTE MAXIMUM RATINGS
Voltage (with respect to GND)
V+ .............................................................................-0.3V to +4V
DIN, SCLK, CS ......................................................-0.3V to +5.5V
All Other Pins................................................-0.3V to (V+ + 0.3V)
Current
V+..................................................................................200mA
GND .............................................................................-200mA
PHASE1, PHASE2, PORT0, PORT1, PUMP................±150mA
VFCLK, VFDOUT, VFLOAD, VFBLANK ......................±150mA
Continuous Power Dissipation (TA = +70°C)
16-Pin QSOP (derate at 8.34mW/°C above +70°C).....667mW
Operating Temperature Range (TMIN, TMAX)
MAX6850AEE................................................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(Typical operating circuit, V+ = 2.7V to 3.6V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER
Operating Supply Voltage
Shutdown Supply Current
Operating Supply Current
Master Clock Frequency (OSC
Internal Oscillator)
SYMBOL
CONDITIONS
MIN
V+
2.7
ISHDN
Shutdown mode, all digital
inputs at V+ or GND
TA = TMIN to
TMAX
TA = +25°C
OSC = 4MHz
TA = TMIN to
I+
VFLOAD, VFDOUT, VFCLK, TMAX
VFBLANK, loaded 100pF
TA = +25°C
fOSC
OSC1 fitted with COSC = 56pF, OSC2 fitted
with ROSC = 10kΩ; see the Typical
Operating Circuit
TYP MAX UNITS
3.6
V
85
µA
9
30
3.5
mA
1.7
3.0
4
MHz
Master Clock Frequency (OSC
External Oscillator)
OSC1 overdriven with external fOSC
2
8
MHz
Dead-Clock Protection
Frequency
OSC High Time
OSC Low Time
Fast or Slow Segment Blink Duty
Cycle
LOGIC INPUTS AND OUTPUTS
Input Leakage Current DIN,
SCLK, CS
tCH
tCL
(Note 2)
IIH, IIL
200
kHz
50
ns
50
ns
49.5
50.5
%
0.2
1
µA
Logic-High Input Voltage DIN,
SCLK, CS
VIH
2.4
V
Logic-Low Input Voltage DIN,
SCLK, CS
VIL
0.6
V
2 _______________________________________________________________________________________
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