SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 350

• Manufacturer Part Number: SAM7SE256
• Manufacturer: Atmel Corporation

Specifications of SAM7SE256

• Flash (kbytes): 256 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 48 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 88
• Ext Interrupts: 88
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

32.3
32.4
32.4.1
Table 32-3.
350
Pin Name
TWD
TWCK
Block Diagram
Application Block Diagram
SAM7SE512/256/32
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