AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 3

• Manufacturer Part Number: AT91R40807-33AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91R40807-33AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Pin Description
Table 1. AT91R40807 Pin Description
1345DS–ATARM–02/02
Module
USART
Power
Reset
Clock
AIC
PIO
WD
ICE
EBI
TC
Name
A0 - A23
D0 - D15
NCS0 - NCS3
CS4 - CS7
NWR0
NWR1
NRD
NWE
NOE
NUB
NLB
NWAIT
BMS
FIQ
IRQ0 - IRQ2
TCLK0 - TCLK2
TIOA0 - TIOA2
TIOB0 - TIOB2
SCK0 - SCK1
TXD0 - TXD1
RXD0 - RXD1
P0 - P31
NWDOVF
MCKI
MCKO
NRST
NTRI
TMS
TDI
TDO
TCK
VDD
GND
Function
Address Bus
Data Bus
Lower Byte 0 Write Signal
Upper Byte 1 Write Signal
Read Signal
Write Enable
Output Enable
Upper Byte Select
Lower Byte Select
Wait Input
Boot Mode Select
Fast Interrupt Request
External Interrupt Request
Multipurpose Timer I/O pin A
Multipurpose Timer I/O pin B
External Serial Clock
Parallel I/O Line
Master Clock Input
Master Clock Output
Test Mode Select
Test Data Input
Test Data Output
Test Clock
Power
Ground
Chip Select
Chip Select
Timer External Clock
Transmit Data Output
Receive Data Input
Watchdog overflow
Hardware Reset Input
Tri-state Mode Select
Type
Ground
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Power
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
I/O
Active
Level
High
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
Open-drain
Schmidt trigger
Schmidt trigger
Sampled during reset
Schmidt trigger, internal pull-up
Schmidt trigger, internal pull-up
Schmidt trigger, internal pull-up
AT91R40807
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