AT91SAM7SE512-AU Atmel, AT91SAM7SE512-AU Datasheet - Page 214

• Manufacturer Part Number: AT91SAM7SE512-AU
• Description: IC ARM7 MCU FLASH 512K 128-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE512-AU

• 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: 512KB (512K 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: 128-LQFP
• Cpu Family: 91S
• Device Core: ARM7TDMI
• Device Core Size: 32b
• Frequency (max): 55MHz
• Interface Type: EBI/SPI/TWI/USART
• Total Internal Ram Size: 32KB
• # I/os (max): 88
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 1.8/3.3V
• Operating Supply Voltage (max): 1.95/3.6V
• Operating Supply Voltage (min): 1.65/3V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 128
• Package Type: LQFP
• No. Of I/o's: 88
• Ram Memory Size: 32KB
• Cpu Speed: 48MHz
• No. Of Timers: 3
• No. Of Pwm Channels: 4
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7SE-EK
• Minimum Operating Temperature: - 40 C
• For Use With: AT91SAM7SE-EK - EVAL BOARD FOR AT91SAM7SEAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

• TWR: Write Recovery Delay
Reset value is two cycles.
This field defines the Write Recovery Time in number of cycles. Number of cycles is between 2 and 15.
If TWR is less than or equal to 2, two clock periods are inserted by default.
• TRC: Row Cycle Delay
Reset value is eight cycles.
This field defines the delay between a Refresh and an Activate Command in number of cycles. Number of cycles is
between 2 and 15.
If TRC is less than or equal to 2, two clock periods are inserted by default.
• TRP: Row Precharge Delay
Reset value is three cycles.
This field defines the delay between a Precharge Command and another Command in number of cycles. Number of cycles
is between 2 and 15.
If TRP is less than or equal to 2, two clock periods are inserted by default.
• TRCD: Row to Column Delay
Reset value is three cycles.
This field defines the delay between an Activate Command and a Read/Write Command in number of cycles. Number of
cycles is between 2 and 15.
If TRCD is less than or equal to 2, two clock periods are inserted by default.
• TRAS: Active to Precharge Delay
Reset value is five cycles.
This field defines the delay between an Activate Command and a Precharge Command in number of cycles. Number of
cycles is between 2 and 15.
If TRAS is less than or equal to 2, two clock periods are inserted by default.
• TXSR: Exit Self Refresh to Active Delay
Reset value is five cycles.
This field defines the delay between SCKE set high and an Activate Command in number of cycles. Number of cycles is
between 1/2 and 15.5.
If TXSR is equal to 0, 1/2 clock period is inserted by default.
214
0
0
1
1
CAS
SAM7SE512/256/32 Preliminary
0
1
0
1
CAS Latency (Cycles)
Reserved
Reserved
Reserved
2
6222F–ATARM–14-Jan-11