AT91SAM7S32-AU-999 Atmel, AT91SAM7S32-AU-999 Datasheet - Page 578
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AT91SAM7S32-AU-999
Manufacturer Part Number
AT91SAM7S32-AU-999
Description
IC MCU ARM7 32KB FLASH 48LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7S32-AU-999
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
I²C, SPI, SSC, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
21
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
8K 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
48-LQFP
For Use With
AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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37.10.3
The maximum operating frequency is given in
cessor is fetching code out of it.
the MC_FMR register. This field defines the number of wait states required to access the Embedded Flash Memory.
Table 37-24.
Notes:
Table 37-25. AC Flash Characteristics
578
Parameter
Program Cycle Time
Full Chip Erase
1. FWS = Flash Wait States
2. It is not necessary to use 2 or 3 wait states because the flash can operate at maximum frequency with only 1 wait state.
AT91SAM7S Series Preliminary
Embedded Flash Characteristics
FWS
2
3
Embedded Flash Wait States
0
1
(2)
(2)
(1)
Conditions
per page including auto-erase
per page without auto-erase
Table 37-24
Read Operations
gives the device maximum operating frequency depending on the FWS field of
Table 37-24
2 cycles
3 cycles
4 cycles
1 cycle
but is limited by the Embedded Flash access time when the pro-
Maximum Operating Frequency (MHz)
Min
15
30
55
55
55
Max
6
3
6175K–ATARM–30-Aug-10
Units
ms
ms
ms
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