AT91M43300-25CI Atmel, AT91M43300-25CI Datasheet - Page 4

• Manufacturer Part Number: AT91M43300-25CI
• Description: IC ARM7 MCU 144 BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M43300-25CI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: WDT
• Number Of I /o: 58
• Program Memory Type: ROMless
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LFBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

3. Pin Description
Table 3-1.
4
Module
EBI
AIC
Timer
USART
SPI
PIO
WD
Clock
Reset
AT91M43300
Name
A0 - A23
D0 - D15
CS4 - CS7
NCS0 - NCS3
NWR0
NWR1
NRD
NWE
NOE
NUB
NLB
NWAIT
BMS
IRQ0 - IRQ3
FIQ
TCLK0 - TCLK5
TIOA0 - TIOA5
TIOB0 - TIOB5
SCK0 - SCK2
TXD0 - TXD2
RXD0 - RXD2
SPCK
MISO
MOSI
NSS
NPCS0 - NPCS3
PA0 - PA29
PB0 - PB27
NWDOVF
MCKI
MCKO
NRST
AT91M43300 Pin Description
Function
Address Bus
Data Bus
Chip Select
Chip Select
Lower Byte 0 Write Signal
Lower Byte 1 Write Signal
Read Signal
Write Enable
Output Enable
Upper Byte Select (16-bit SRAM)
Lower Byte Select (16-bit SRAM)
Wait Input
Boot Mode Select
External Interrupt Request
Fast External Interrupt Request
Timer External Clock
Multipurpose Timer I/O Pin A
Multipurpose Timer I/O Pin B
External Serial Clock
Transmit Data Output
Receive Data Input
SPI Clock
Master In Slave Out
Master Out Slave In
Slave Select
Peripheral Chip Select
Programmable I/O Port A
Programmable I/O Port B
Watchdog Timer Overflow
Master Clock Input
Master Clock Output
Hardware Reset Input
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Type
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Active
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Comments
All valid after reset
A23 - A20 after reset
Used in Byte Write option
Used in Byte Write option
Used in Byte Write option
Used in Byte Select option
Used in Byte Select option
Used in Byte Select option
Used in Byte Select option
Sampled during reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
PIO-controlled after reset
Input after reset
Input after reset
Open drain
Schmidt trigger
Schmidt trigger, internal pull-up
1322B–ATARM–12-Dec-05