Rainbow Electronics MAXQ7670 - Manual (Page 6)

MAXQ7670
Microcontroller with 10-Bit ADC,
PGA, 64KB Flash, and CAN Interface
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ELECTRICAL CHARACTERISTICS (continued)
(V DVDDIO = +5.0V, V AVDD = +3.3V, V DVDD = +2.5V, V REFADC = +3.3V, system clock = 16MHz. T A = T MIN to T MAX , unless otherwise
noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
HIGH-FREQUENCY CRYSTAL OSCILLATOR
Using external crystal 8 or 16 16
Clock Frequency
External input (Note 10) 0.166 16.67
MHz
Stability Excluding crystal drift 25 ppm
Startup Time f SYSCLK cycles 65,535 Cycles
XIN Input Low Voltage Driven with external clock source
0.3 x
V DVDD
V
XIN Input High Voltage Driven with external clock source
0.7 x
V DVDD
V
INTERNAL FIXED-FREQUENCY OSCILLATOR
Frequency f IFFCLK T A = T MIN to T MAX 13.8 15 16.35 MHz
Tolerance T A = +25°C ±0.4 %
Temperature Drift T A = T MIN to T MAX 5 %
Power-Supply Rejection T A = +25°C, DV DD = 2.25V to 2.75V ±1.5 %
RESET ( RESET)
RESET Internal Pullup
Resistance
Pulled up to DVDDIO 55 k Ω
RESET Output Low Voltage RESET asserted, no external load 0.4 V
RESET Output High Voltage RESET deasserted, no external load
0.9 x
V DVDDIO
V
RESET Input Low Voltage Driven with external clock source
0.3 x
V DVDD
V
RESET Input High Voltage Driven with external clock source
0.7 x
V
DVDDIO
V
DIGITAL INPUTS (P0._, CANRXD, MISO, MOSI, SS, SCLK, TCK, TDI, TMS)
Input Low Voltage 0.8 V
Input High Voltage 2.1 V
Input Hysteresis 500 mV
Input Leakage Current
V IN = GNDIO or V DVDDIO ,
pullup disabled
-10 ±0.01 +10 µA
Input Pullup Resistance 55 k Ω
Input Pulldown Resistance 55 k Ω
Input Capacitance 15 pF
DIGITAL OUTPUTS (P0._, CANTXD, MOSI, SCLK,
SS, TDO)
Output Low Voltage I SINK = 0.5mA 0.4 V
Output High Voltage I SOURCE = 0.5mA
V DVDDIO
- 0.5
V