AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 574
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AT91SAM7S256D-AU
Manufacturer Part Number
AT91SAM7S256D-AU
Description
ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
Manufacturer
Atmel
Series
SAM7S256r
Datasheet
1.AT91SAM7S256D-AU.pdf
(775 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7S256D-AU
Manufacturer:
ATMEL
Quantity:
101
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37.9
Table 37-18. Channel Conversion Time and ADC Clock
Notes:
Table 37-19. External Voltage Reference Input
Table 37-20. Analog Inputs
Table 37-21. Transfer Characteristics
Parameter
ADC Clock Frequency
ADC Clock Frequency
Startup Time
Track and Hold Acquisition Time
Conversion Time
Conversion Time
Throughput Rate
Throughput Rate
Parameter
ADVREF Input Voltage Range
ADVREF Input Voltage Range
ADVREF Average Current
Current Consumption on VDDIN
Parameter
Input Voltage Range
Input Leakage Current
Input Capacitance
Parameter
Resolution
Integral Non-linearity
Differential Non-linearity
ADC Characteristics
1. Corresponds to 13 clock cycles at 5 MHz: 3 clock cycles for track and hold acquisition time and 10 clock cycles for
2. Corresponds to 15 clock cycles at 8 MHz: 5 clock cycles for track and hold acquisition time and 10 clock cycles for
The user can drive ADC input with impedance up to:
with SHTIM (Sample and Hold Time register) expressed in ns and Z
• Z
• Z
conversion.
conversion.
OUT
OUT
≤ (SHTIM -470) x 10 in 8-bit resolution mode
≤ (SHTIM -589) x 7.69 in 10-bit resolution mode
Conditions
8-bit resolution mode
On 13 samples with ADC Clock = 5 MHz
Conditions
10-bit resolution mode
Return from Idle Mode
ADC Clock = 5 MHz
ADC Clock = 8 MHz
ADC Clock = 5 MHz
ADC Clock = 8 MHz
8-bit resolution mode
Conditions
No missing code
OUT
expressed in ohms.
SAM7S Series [DATASHEET]
Min
Min
Min
600
Min
2.6
2.5
0
Typ
Typ
Typ
0.55
Typ
200
12
10
1
6175M–ATARM–26-Oct-12
V
384
533
ADVREF
Max
1.25
V
V
Max
Max
Max
250
20
14
±2
±1
DDIN
DDIN
5
8
2
1
(1)
(2)
Units
kSPS
kSPS
Units
Units
Units
MHz
MHz
LSB
LSB
mA
µs
ns
µs
µs
µA
µA
pF
Bit
V
V
574
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