AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 7

• Manufacturer Part Number: AT91SAM7SE256B-CUR
• Description: IC ARM7 MCU FLASH 256K 128-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256B-CUR

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: EBI/EMI, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 88
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: SAM7SE256
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: SPI, USB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 88
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Processor To Be Evaluated: AT91SAM7SE256B
• Supply Current (max): 60 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Table 3-1.
6222F–ATARM–14-Jan-11
Signal Name
TWD
TWCK
AD0-AD3
AD4-AD7
ADTRG
ADVREF
PGMEN0-PGMEN2
PGMM0-PGMM3
PGMD0-PGMD15
PGMRDY
PGMNVALID
PGMNOE
PGMCK
PGMNCMD
D[31:0]
A[22:0]
NWAIT
NCS[7:0]
NWR[1:0]
NRD
NWE
NUB
NLB
CFCE[2:1]
CFOE
CFWE
CFIOR
CFIOW
CFRNW
CFCS[1:0]
Signal Description List (Continued)
Programming Enabling
Function
Two-wire Serial Data
Two-wire Serial Clock
Analog Inputs
Analog Inputs
ADC Trigger
ADC Reference
Programming Mode
Programming Data
Programming Ready
Data Direction
Programming Read
Programming Clock
Programming Command
Data Bus
Address Bus
External Wait Signal
Chip Select Lines
Write Signals
Read Signal
Write Enable
NUB: Upper Byte Select
NLB: Lower Byte Select
CompactFlash Chip Enable
CompactFlash Output Enable
CompactFlash Write Enable
CompactFlash I/O Read Signal
CompactFlash I/O Write Signal
CompactFlash Read Not Write Signal
CompactFlash Chip Select Lines
Fast Flash Programming Interface
EBI for CompactFlash Support
Analog-to-Digital Converter
Static Memory Controller
External Bus Interface
Two-Wire Interface
SAM7SE512/256/32 Preliminary
Analog
Analog
Analog
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Type
Input
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
Active
Level
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Comments
Digital pulled-up inputs at reset
Analog Inputs
7