MAXQ7665BATM+ Maxim Integrated Products, MAXQ7665BATM+ Datasheet - Page 19

• Manufacturer Part Number: MAXQ7665BATM+
• Description: IC MCU-BASED DAS 16BIT 48-TQFN
• Manufacturer: Maxim Integrated Products
• Series: MAXQ™r

Specifications of MAXQ7665BATM+

• Core Processor: RISC
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: CAN, LIN, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 8
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 256 x 16
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.25 V
• Data Converters: A/D 8x12b, D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

The µC arithmetic core of the MAXQ7665A–
MAXQ7665D is a 16-bit RISC machine with digital and
analog peripheral functions. They incorporate a 16-bit
RISC ALU with a Harvard memory architecture that can
address up to 128KB (64K x 16) of flash and 512 bytes
(256 x 16) of RAM memory. They also contain a hard-
ware multiplier, up to eight digital I/Os, a controller area
network (CAN 2.0B) bus, a JTAG interface, three
timers, an on-chip RC oscillator, a precision 12-bit
500ksps ADC with an 8-channel differential MUX and
PGA, a 12-bit precision DAC, an internal temperature
sensor and temperature-sensor driver, a linear regulator,
watchdog timer, and a dual power-supply supervisor.
Figure 1. Simplified Analog Input Diagram (Eight Fully Differential Inputs)
P0.4/ADCCNV
REFADC
AIN10
AIN12
AIN14
AIN11
AIN13
AIN15
AIN0
AIN2
AIN4
AIN6
AIN8
AIN1
AIN3
AIN5
AIN7
AIN9
______________________________________________________________________________________
Detailed Description
4
3
ADCMX
16-Bit RISC Microcontroller-Based
MUX
MUX
8:1
8:1
2
1
Smart Data-Acquisition Systems
MAXQ7665A–MAXQ7665D
0
1 TO 32
2
PGA
PGG
ADCDIF
1
PGAE
0
The MAXQ offers a low < 3mA/MIPS ratio. The on-chip
16-bit x 16-bit hardware multiplier with accumulator,
performs single-cycle computations. Refer to the
MAXQ7665/MAXQ7666 User’s Guide for more detailed
information on configuring and programming the
MAXQ7665A–MAXQ7665D.
The integrated 12-bit ADC employs an ultra-low-power,
high-precision, SAR-based conversion method and can
operate up to 500ksps (142ksps with PGA ≥ 2). The on-
chip 8-channel differential MUX and PGA allow the
ADC to measure eight fully differential analog inputs
with software-selectable input ranges through the PGA.
See Figure 1.
ADCE
TIMERS 0, 1, 2
CONVERSION
CONTROL
12-BIT ADC
500ksps
2
ADCCD
CLOCK
ADC
DIV
1
0
ADCBY
Analog Input Peripheral
12
ADCOV
ADCRDY
ADCBIP
SYSCLK
SOURCE
ADCASD
2
ADCS
ADCDUL
1
DATA
BUS
0
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