AT90CAN128-15AZ Atmel, AT90CAN128-15AZ Datasheet - Page 28
![MCU AVR 128K FLASH 15MHZ 64TQFP](/photos/37/62/376245/tqfp-64_sml.jpg)
AT90CAN128-15AZ
Manufacturer Part Number
AT90CAN128-15AZ
Description
MCU AVR 128K FLASH 15MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN128-15AZ
Package / Case
64-TQFP, 64-VQFP
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
53
Eeprom Size
4K x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
4K x 8
Program Memory Size
128KB (128K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
CAN, I²C, SPI, UART/USART
Core Size
8-Bit
Processor Series
AT90CANx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
CAN, SPI, UART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
53
Number Of Timers
4
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATDVK90CAN1, ATADAPCAN01
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Cpu Family
90C
Device Core
AVR
Device Core Size
8b
Frequency (max)
16MHz
Total Internal Ram Size
4KB
# I/os (max)
53
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
64
Package Type
TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90CAN128-15AZ
Manufacturer:
SAMSUNG
Quantity:
1 001
Company:
Part Number:
AT90CAN128-15AZ
Manufacturer:
ATMEL
Quantity:
1 000
Part Number:
AT90CAN128-15AZ
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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4.5.2
28
AT90CAN32/64/128
Using the External Memory Interface
Figure 4-4.
The interface consists of:
The control bits for the External Memory Interface are located in two registers, the External
Memory Control Register A – XMCRA, and the External Memory Control Register B – XMCRB.
When the XMEM interface is enabled, the XMEM interface will override the setting in the data
direction registers that corresponds to the ports dedicated to the XMEM interface. For details
about the port override, see the alternate functions in section
interface will auto-detect whether an access is internal or external. If the access is external, the
XMEM interface will output address, data, and the control signals on the ports according to
ure 4-6
there is a valid address on AD7:0. ALE is low during a data transfer. When the XMEM interface
is enabled, also an internal access will cause activity on address, data and ALE ports, but the
RD and WR strobes will not toggle during internal access. When the External Memory Interface
is disabled, the normal pin and data direction settings are used. Note that when the XMEM inter-
face is disabled, the address space above the internal SRAM boundary is not mapped into the
internal SRAM.
octal latch (typically “74x573” or equivalent) which is transparent when G is high.
• AD7:0: Multiplexed low-order address bus and data bus.
• A15:8: High-order address bus (configurable number of bits).
• ALE: Address latch enable.
• RD: Read strobe.
• WR: Write strobe.
(this figure shows the wave forms without wait-states). When ALE goes from high-to-low,
External Memory with Sector Select
Figure 4-5
illustrates how to connect an external SRAM to the AVR using an
External Memory
(0-64K x 8)
Internal memory
Lower sector
Upper sector
SRW01
SRW00
SRW11
SRW10
“I/O-Ports” on page
0x0000
ISRAM end
XMem start
0xFFFF
SRL[2..0]
66. The XMEM
7679H–CAN–08/08
Fig-
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