AT91SAM7SE256-CU Atmel, AT91SAM7SE256-CU Datasheet - Page 140

• Manufacturer Part Number: AT91SAM7SE256-CU
• Description: IC ARM7 MCU FLASH 256K 144-LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256-CU

• 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: 144-LFBGA
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: EBI, SPI, TWI, USART
• 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
• On-chip Adc: 10 bit
• 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: Details
• Other names: AT91SAM7SE256-CJ; AT91SAM7SE256-CJ

21.4.2
140
8. When the NAND Flash Logic is used, NWR0/NWE/CFWE must be kept as PIO Input Mode with Pull-up enabled (default
SAM7SE512/256/32 Preliminary
Connection Examples
state after reset) or as PIO Output set at logic level 1. The PIO cannot be used in PIO Mode.
Figure 21-2
Figure 21-2. EBI Connections to Memory Devices
EBI
shows an example of connections between the EBI and external devices.
NWR1/NBS1
NWR0/NWE
NCS1/SDCS
A0/NBS0
A1/NBS2
A18-A22
A16/BA0
A17/BA1
D0-D31
A2-A15
SDCKE
SDA10
NCS2
NCS3
NCS4
NCS5
NCS6
NCS7
SDCK
SDWE
NBS3
NCS0
NRD
RAS
CAS
A0/NWR0/NBS0
NRD/NOE
D0-D7
D16-D23
D0-D7
SDWE
NBS0
SDWE
NBS2
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
OE
D0-D7
CS
WE
128K x 8
SRAM
SDRAM
2M x 8
SDRAM
2M x 8
A0-A9, A11
A0-A9, A11
A0-A16
BA0
BA1
BA0
BA1
A10
A10
A2-A11, A13
SDA10
A16/BA0
A17/BA1
A2-A11, A13
SDA10
A16/BA0
A17/BA1
A1-A17
D8-D15
NWR1/NBS1
NRD/NOE
D24-D31
D8-D15
SDWE
SDWE
NBS3
NBS1
D0-D7
CS
OE
WE
128K x 8
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
CS
CLK
CKE
WE
RAS
CAS
DQM
D0-D7
SRAM
SDRAM
2M x 8
SDRAM
2M x 8
A0-A16
A0-A9, A11
A0-A9, A11
BA0
BA1
BA0
BA1
A10
A10
6222F–ATARM–14-Jan-11
A2-A11, A13
SDA10
A16/BA0
A17/BA1
A1-A17
A2-A11, A13
SDA10
A16/BA0
A17/BA1