AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 11

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

4.3
4.4
Table 4-2.
Note:
10
11
12
1
2
3
4
5
6
7
8
9
PA17/PGMD5/AD0
PA18/PGMD6/AD1
PA19/PGMD7/AD2
48-lead LQFP and 48-pad QFN Package Outlines
Figure 4-3
mechanical description is given in the section Mechanical Characteristics of the full datasheet.
Figure 4-3. 48-lead LQFP Package (Top View)
Figure 4-4. 48-pad QFN Package (Top View)
48-lead LQFP and 48-pad QFN Pinout
1. The bottom pad of the QFN package must be connected to ground.
PA20/AD3
SAM7S32/16 Pinout
VDDOUT
ADVREF
VDDIN
GND
AD4
AD5
AD6
AD7
and
Figure 4-4
(1)
show the orientation of the 48-lead LQFP and the 48-pad QFN package. A detailed
13
14
15
16
17
18
19
20
21
22
23
24
PA7/PGMNVALID
PA16/PGMD4
PA14/PGMD2
PA12/PGMD0
PA11/PGMM3
PA10/PGMM2
PA15/PGMD3
PA13/PGMD1
PA9/PGMM1
PA8/PGMM0
VDDCORE
VDDIO
37
48
37
48
36
36
1
1
25
26
27
28
29
30
31
32
33
34
35
36
25
PA4/PGMNCMD
12
PA6/PGMNOE
PA5/PGMRDY
PA2/PGMEN2
PA1/PGMEN1
PA0/PGMEN0
12
25
VDDIO
24
13
NRST
GND
TST
24
13
PA3
TDI
SAM7S Series [DATASHEET]
37
38
39
40
41
42
43
44
45
46
47
48
6175M–ATARM–26-Oct-12
XIN/PGMCK
VDDFLASH
VDDCORE
JTAGSEL
VDDPLL
ERASE
PLLRC
XOUT
GND
TDO
TMS
TCK
11