MAXQ7670ATL/V+T Maxim Integrated Products, MAXQ7670ATL/V+T Datasheet - Page 27

• Manufacturer Part Number: MAXQ7670ATL/V+T
• Description: IC MCU W/10BIT ADC 40TQFN-EP
• Manufacturer: Maxim Integrated Products
• Series: MAXQ™r

Specifications of MAXQ7670ATL/V+T

• Core Processor: RISC
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: CAN, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 7
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 1K x 16
• Voltage - Supply (vcc/vdd): 2.25 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-TQFN Exposed Pad
• Processor Series: MAXQ7670
• Core: RISC
• Data Bus Width: 16 bit
• 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
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

application code to store data when context switching
(e.g., during a call or an interrupt). Storing and retriev-
ing data is executed through the PUSH, POP, and POPI
instructions.
The incorporation of flash memory allows device repro-
gramming, eliminating the expense of discarding one-
time programmable devices during development and
field upgrades (see Figure 13 for the flash memory sec-
tor maps).
A 16-word key protects the flash memory from access
by unauthorized individuals. Without supplying the 16-
word key, the password lock (PWL) bit in the SC regis-
ter remains set, and the utility ROM is inaccessible.
Supplying the 16-word key makes the utility ROM trans-
parent. The password-unlock command is issued
through the TAP interface. The 16-word password is
compared to the password in the program space to
determine its validity.
Figure 12. MAXQ7670 Memory Map
EXECUTING
FROM
______________________________________________________________________________________
PROGRAM
UTILITY ROM
DATA RAM
PROGRAM
1024 x 16
32K x 16
SPACE
4K x 16
FLASH
PGA, 64KB Flash, and CAN Interface
FFFFh
A400h
A3FFh
A000h
8FFFh
8000h
7FFFh
0000h
Microcontroller with 10-Bit ADC,
(WORD MODE)
DATA SPACE
UTILITY ROM
DATA RAM
1024 x 16
4K x 16
Enabling a pseudo-Von Neumann memory map places
the utility ROM, code, and data memory into a single
contiguous memory map. Use this mapping scheme for
applications that require dynamic program modification
or unique memory configurations.
Figure 13. Flash Memory Sector Maps
7FFFh
0000h
PROGRAM
32K x 16
FLASH
8FFFh
8000h
03FFh
0000h
FFFFh
9000h
7FFFh
0400h
PAGE 127
PAGE 126
PAGE 125
PAGE 2
PAGE 1
PAGE 0
(BYTE MODE)
DATA SPACE
UTILITY ROM
DATA RAM
2048 x 8
8K x 8
1 PAGE = 256 WORDS
FFFFh
9000h
8FFFh
8000h
7FFFh
0400h
03FFh
0000h
27