AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 150

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

Specifications of AT91SAM7SE256B-CUR

• 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

21.7.3
21.7.3.1
21.7.3.2
150
SAM7SE512/256/32 Preliminary
8-bit NAND Flash
Hardware Configuration
Software Configuration
(ANY PIO)
NANDOE
NANDWE
(ANY PIO)
D[0..7]
CLE
ALE
The following configuration must be respected:
• CLE, ALE, NANDOE and NANDWE signals are multiplexed with PIO lines and thus the
• Assign the EBI CS3 to the NAND Flash by setting the bit EBI_CS3A in the EBI Chip Select
• Reserve A21/A22 for ALE/CLE functions. Address and Command Latches are controlled
• Configure a PIO line as an input to manage the Ready/Busy signal.
• Configure Static Memory Controller CS3 Setup, Pulse, Cycle and Mode according to NAND
dedicated PIOs must be programmed in peripheral mode in the PIO controller.
Assignment Register.
respectively by setting to 1 the address bit A21 and A22 during accesses.
Flash timings, the data bus width and the system bus frequency.
3V3
R1
R1
R2
R2
10K
10K
10K
10K
16
17
18
19
10
11
14
15
20
21
22
23
24
25
26
8
9
7
1
2
3
4
5
6
U1
U1
CLE
ALE
RE
WE
CE
R/B
WP
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
TSOP48 PACKAGE
2 Gb
K9F2G08U0M
K9F2G08U0M
VCC
VCC
PRE
VSS
VSS
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
29
30
31
32
41
42
43
44
48
47
46
45
40
39
38
35
34
33
28
27
37
12
36
13
D0
D1
D2
D3
D4
D5
D6
D7
C1
C1
100NF
100NF
3V3
C2
C2
100NF
100NF
6222F–ATARM–14-Jan-11