AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 350

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

Specifications of AT91SAM7SE256B-AUR

• 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

32.3
32.4
32.4.1
Table 32-3.
350
Pin Name
TWD
TWCK
Block Diagram
Application Block Diagram
SAM7SE512/256/32 Preliminary
I/O Lines Description
I/O Lines Description
Figure 32-1. Block Diagram
Figure 32-2. Application Block Diagram
Rp: Pull up value as given by the I²C Standard
Host with
Interface
TWI
Pin Description
Two-wire Serial Data
Two-wire Serial Clock
TWD
TWCK
PMC
APB Bridge
Serial EEPROM
Atmel TWI
Slave 1
MCK
Two-wire
Interface
I²C RTC
Slave 2
Controller
I²C LCD
Slave 3
Interrupt
TWI
PIO
AIC
I²C Temp.
Sensor
Slave 4
Rp
Input/Output
Input/Output
6222F–ATARM–14-Jan-11
TWCK
TWD
Type
Rp
VDD