AT91SAM7SE512-AU Atmel, AT91SAM7SE512-AU Datasheet - Page 76
![IC ARM7 MCU FLASH 512K 128-LQFP](/photos/6/71/67112/128-lqfp_sml.jpg)
AT91SAM7SE512-AU
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7SE512-AU
Manufacturer:
AMTEL
Quantity:
382
Part Number:
AT91SAM7SE512-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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15.4
Table 15-1.
15.4.1
Name:
Access:
• WDRSTT: Watchdog Restart
0: No effect.
1: Restarts the Watchdog.
• KEY: Password
Should be written at value 0xA5. Writing any other value in this field aborts the write operation.
76
Offset
0x00
0x04
0x08
31
23
15
–
–
7
–
Watchdog Timer (WDT) User Interface
SAM7SE512/256/32 Preliminary
Watchdog Timer Control Register
Watchdog Timer (WDT) Register Mapping
Register
Control Register
Mode Register
Status Register
30
22
14
WDT_CR
–
–
6
–
Write-only
29
21
13
–
–
5
–
28
20
12
–
–
4
–
KEY
Name
WDT_CR
WDT_MR
WDT_SR
27
19
11
–
–
3
–
26
18
10
–
–
2
–
Read/Write Once
Read-only
Write-only
Access
25
17
–
9
–
1
–
6222F–ATARM–14-Jan-11
0x3FFF_2FFF
0x0000_0000
Reset Value
WDRSTT
-
24
16
–
8
–
0
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