AT91M55800A-33CI Atmel, AT91M55800A-33CI Datasheet - Page 7

• Manufacturer Part Number: AT91M55800A-33CI
• Description: IC ARM MCU 33MHZ 176-BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M55800A-33CI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 58
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• For Use With: AT91EB55 - KIT EVAL FOR ARM AT91M55800A
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

3. Pin Description
Table 3-1.
1745FS–ATARM–18-Apr-06
Module
EBI
AIC
Timer
USART
SPI
PIO
WD
ADC
Name
A0 - A23
D0 - D15
NCS0 - NCS7
NWR0
NWR1
NRD
NWE
NOE
NUB
NLB
NWAIT
BMS
IRQ0 - IRQ5
FIQ
TCLK0 - TCLK5
TIOA0 - TIOA5
TIOB0 - TIOB5
SCK0 - SCK2
TXD0 - TXD2
RXD0 - RXD2
SPCK
MISO
MOSI
NSS
NPCS0 - NPCS3
PA0 - PA29
PB0 - PB27
AD0 - AD7
AD0TRIG
AD1TRIG
ADVREF
NWDOVF
Pin Description
Function
Address bus
Data bus
Chip select
Lower byte 0 write signal
Lower byte 1 write signal
Read signal
Write enable
Output enable
Upper byte-select
Lower byte-select
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
Parallel I/O port A
Parallel I/O port B
Watchdog timer overflow
Analog input channels 0 - 7
ADC0 external trigger
ADC1 external trigger
Analog reference
Analog ref
Analog in
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
AT91M55800A Summary
Active
Level
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Comments
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
PIO-controlled after reset
PIO-controlled after reset
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