MAXQ7670ATL+ Maxim Integrated Products, MAXQ7670ATL+ Datasheet - Page 17

• Manufacturer Part Number: MAXQ7670ATL+
• Description: Microcontrollers (MCU) MICROCNTRLR W/10-BIT ADC PGA 64KB FLASH & CAN INTRFCE
• Manufacturer: Maxim Integrated Products

Specifications of MAXQ7670ATL+

• Processor Series: MAXQ
• Core: RISC
• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 2 KB
• Interface Type: SPI, JTAG, CAN
• Maximum Clock Frequency: 16 MHz
• Number Of Timers: 1
• Operating Supply Voltage: 4.5 V to 5.25 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: TQFN-EP-40
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAXQ7670A incorporates a 16-bit RISC arithmetic
logic unit (ALU) with a Harvard memory architecture
that addresses 64KB (32K x 16) of flash and 2048
bytes (1024 x 16) of RAM memory. This core combined
with digital and analog peripherals provide versatile
data-acquisition functions. The peripherals include up to
seven digital I/Os, a 4-wire SPI interface, a CAN 2.0B
bus, a JTAG interface, a timer, an integrated RC oscilla-
tor, two linear regulators, a watchdog timer, three
power-supply supervisors, a 12-bit 125ksps SAR ADC
with programmable-gain amplifier (PGA) and eight sin-
gle-ended or four differential multiplexed inputs. The
Figure 3. Simplified Analog Input Diagram (Eight Single-Ended Inputs)
______________________________________________________________________________________
P0.4/ADCCNV
Detailed Description
REFADC
AGND
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
PGA, 64KB Flash, and CAN Interface
Microcontroller with 12-Bit ADC,
3
ADCMX
2
MUX
8:1
1
MAXQ7670A
0
1V/V OR
16V/V
PGA
PGG
power-efficient MAXQ20 µC core consumes less than
1mA/MIPS. Refer to the MAXQ7670 User’s Guide for
more detailed information on configuring and program-
ming the MAXQ7670A.
The integrated 12-bit ADC employs an ultra-low-power
SAR-based conversion method and operates up to
125ksps with PGA = 1V/V (75.5ksps with PGA = 16V/V).
The integrated 8-channel multiplexer (mux) and PGA
allow the ADC to measure eight single-ended (relative
to AGND) or four fully differential analog inputs with
software-selectable input ranges through the PGA. See
Figures 3 and 4.
ADCE
CONVERSION
CONTROL
TIMER 0
12-BIT ADC
125ksps
ADCCD
CLOCK
1
ADC
DIV
12
0
ADCBY
ADCRDY
ADCBIP
ADCASD
Analog Input Peripheral
DATA
BUS
2
ADCDUL
ACTL
1
ADCCLK
SOURCE
0
17