MAX7651 Просмотр технического описания (PDF) - Maxim Integrated
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MAX7651 Datasheet PDF : 36 Pages
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Flash Programmable 12-Bit Integrated
Data-Acquisition Systems
ELECTRICAL CHARACTERISTICS (continued)
(MAX7651: AVDD = VPWMV = DVDD = VREF+ = +4.5V to +5.5V, VREF- = 0, fXTAL = 12MHz. MAX7652: AVDD = VPWMV = DVDD = +2.7V to +3.6V,
VREF+ = +2.5V, VREF- = 0, ACOM = AVDD/2, fXTAL = 12MHz. TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
EXTERNAL VOLTAGE REFERENCE CHARACTERISTICS (REF+, REF-)
Reference Voltage
Range
VREF+ - VREF-
0
AVDD
V
Reference Input Current
35
µA
Reference Input
Capacitance
POWER REQUIREMENTS
Analog Supply Current
Digital Supply Current
Idle-Mode Digital
Supply Current
MAX7651, during page erase
MAX7652, during page erase
MAX7651
MAX7652
10
pF
5
mA
55
mA
40
13
30
mA
5
12
Stop-Mode Supply
Current
IAVDD + IDVDD (Note 5)
10
µA
Analog Power-Supply
Rejection Ratio
PSRR
-40
dB
PWM OUTPUTS
Output Low Voltage
ISINK = 2mA
Output High Voltage
ISOURCE = 2mA
FLASH EXTERNAL PROGRAMMING (FIGURE 1, NOTE 6)
Program Pulse Width
tPROGL
Program Address and
Data Setup
tASUW Guaranteed by design
Program Cycle Time
tWRITE
MAX7651
MAX7652
Verify Address and
Data Set
tADSUR
2.4
10tCK
3tCK
7tCK
+ 54000
7tCK
+ 54000
3tCK
0.4
V
V
ns
ns
16tCK
+ 72000 ns
32tCK
+ 72000
ns
Verify Access Time
tREAD
9tCK
ns
+ 50
Minimum P2.7 Pulse
Width Low
tP27L
10tCK
ns
Minimum P2.7 Pulse
Width High
tP27H Guaranteed by design
Clock Period
tCK
FLASH EXTERNAL MASS ERASE (FIGURE 2, NOTE 6)
Erase Mode Setup
Program Pulse Width
tP23SU
tERASLOW
Erase Cycle Time
tMASSERASE
3tCK
83
3tCK
10tCK
8.29
ns
250
ns
ns
ns
11
ms
4 _______________________________________________________________________________________
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