AT91SAM7SE256-AU Atmel, AT91SAM7SE256-AU Datasheet - Page 203

• Manufacturer Part Number: AT91SAM7SE256-AU
• Description: IC ARM7 MCU FLASH 256K 128-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256-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: 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: 128-LQFP
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: SPI, TWI, USART
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 88
• Number Of Timers: 2
• Operating Supply Voltage: 3 V to 3.6 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, 8 Channel
• Controller Family/series: AT91SAM7xxxxx
• No. Of I/o's: 88
• Ram Memory Size: 32KB
• Cpu Speed: 48MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• 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: Lead free / RoHS Compliant

Table 23-4.
Notes:
23.4.1.2
Table 23-5.
Table 23-6.
Table 23-7.
Notes:
6222B–ATARM–26-Mar-07
27
27
27
Bk[1:0]
2
7
26
26
26
Bk[1:0]
Bk[1:0]
2
6
1. M[1:0] is the byte address inside a 32-bit word.
2. Bk[1] = BA1, Bk[0] = BA0.
1. M0 is the byte address inside a 16-bit half-word.
2. Bk[1] = BA1, Bk[0] = BA0.
25
25
25
Bk[1:0]
Bk[1:0]
Bk[1:0]
2
5
16-bit Memory Data Bus Width
24
24
24
Bk[1:0]
Bk[1:0]
Bk[1:0]
Bk[1:0]
SDRAM Configuration Mapping: 8K Rows, 256/512/1024/2048 Columns
2
4
SDRAM Configuration Mapping: 2K Rows, 256/512/1024/2048 Columns
SDRAM Configuration Mapping: 4K Rows, 256/512/1024/2048 Columns
SDRAM Configuration Mapping: 8K Rows, 256/512/1024/2048 Columns
23
23
23
Bk[1:0]
Bk[1:0]
Bk[1:0]
2
3
22
22
22
Bk[1:0]
Bk[1:0]
2
2
21
21
21
Bk[1:0]
2
1
20
20
20
2
0
Row[12:0]
19
19
19
1
9
Row[12:0]
Row[12:0]
Row[11:0]
18
18
18
1
8
Row[10:0]
Row[12:0]
Row[12:0]
Row[11:0]
17
17
17
1
7
Row[12:0]
Row[10:0]
Row[12:0]
Row[11:0]
16
16
16
1
6
Row[10:0]
Row[12:0]
AT91SAM7SE512/256/32 Preliminary
Row[11:0]
CPU Address Line
CPU Address Line
CPU Address Line
CPU Address Line
15
15
15
1
5
Row[10:0]
14
14
14
1
4
13
13
13
1
3
12
12
12
1
2
11
11
11
1
1
10
10
10
1
0
9
9
9
9
Column[10:0]
8
8
8
8
Column[9:0]
Column[10:0]
Column[10:0]
Column[10:0]
7
7
Column[8:0]
7
7
Column[9:0]
Column[7:0]
Column[9:0]
Column[9:0]
6
Column[8:0]
6
6
Column[8:0]
6
Column[8:0]
Column[7:0]
Column[7:0]
Column[7:0]
5
5
5
5
4
4
4
4
3
3
3
3
2
2
2
2
1
1
1
1
M[1:0]
M[1:0]
M[1:0]
M[1:0]
M0
M0
M0
M0
203
M0
M0
M0
M0
M0
M0
M0
M0
0
0
0
0