MAXQ7670A Maxim, MAXQ7670A Datasheet - Page 16

• Manufacturer Part Number: MAXQ7670A
• Description: The MAXQ7670A is a highly integrated solution for measuring multiple analog signals and outputting the results on a control area network (CAN) bus
• Manufacturer: Maxim

Microcontroller with 12-Bit ADC,
PGA, 64KB Flash, and CAN Interface
16
REGEN2
DVDDIO
GNDIO
AGND
RESET
DVDD
DGND
XOUT
TMS
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
TCK
TDO
TDI
XIN
______________________________________________________________________________________
DGND
GNDIO
DVDDIO
REGAULATOR
GNDIO
LINEAR
+2.5V
DGND
DVDD
XTAL
OSC.
HF
IFE
DGND
BUFFERS
DVDDIO
FIXED
FREQ
OSC.
GNDIO
INT
DVDDIO
I/O
AIN1
AIN3
AIN5
AIN7
AIN9
HFE
HFFINT
XHFRY
POWER-ON
MONITOR
RESET
DVDD
VDPE
M
U
X
JTAG INTERFACE
I/O REGISTERS
MAXQ7670A
MUX
10:1
MUX
6:1
IFFCLK
PORT 0
SYSCLK
HFCLK
DVDDIO
PGAE
DGND
DVDD
IFFCLK
ADCMX[3:0]
PROGRAM/DATA
64KB (32K x 16)
TIMER CLOCK
CAN CLOCK
PRESCALER
ADC CLOCK
PRESCALER
PRESCALER
PRESCALER
FLASH
GAIN = 1x, 16x
EWT
HF CLOCK
UTILITY ROM
2KB (1K x 16)
DATA RAM
PGA
4K x 16
WATCHDOG
TIMER
HFFINT
EIFO
SPI
CANCLK
ADCCLK
ADCE
ADCREF
WDI
T0CLK
2:1
M
U
X
12-BIT ADC
MAXQ20 CORE
DGND
DV
CONTROLLER
SOFTWARE-
INTERRUPT
RISC CPU
DD
16-BIT
ADCCNV
SYSCLK
ADCBY
ADCCLK
CANSTI
CANERI
T0CLK
PD0
PO0
PI0
T0I
CANSTI
CANERI
EIF0
T0I
SPI
DVDDIO
CANCLK
VIOBI
VABI
SERIAL PERIPHERAL
DVDDIO BROWNOUT
16-BIT TIMER0
INTERFACE (SPI)
I/O REGISTERS
AVDD BROWNOUT
INTERFACE
REGAULATOR
CAN 2.0B
PORT 0
MONITOR
MONITOR
LINEAR
GNDIO
LRAPD
+3.3V
VABE
VIBE
Block Diagram
BUFFERS
BUFFERS
DVDDIO
GNDIO
I/O
I/O
AGND
DVDDIO
GNDIO
GNDIO
AVDD
REFADC
SS
SCLK
MOSI
MISO
CANTXD
CANRXD
AVDD
P0.7/T0B
P0.6/T0
P0.5
P0.4/ADCCNV
P0.2
P0.1
P0.0