AT91SAM7X256B-CU Atmel, AT91SAM7X256B-CU Datasheet - Page 622
![IC MCU 256KB FLASH 100TFBGA](/photos/6/89/68968/313-100-cbga_sml.jpg)
AT91SAM7X256B-CU
Manufacturer Part Number
AT91SAM7X256B-CU
Description
IC MCU 256KB FLASH 100TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7X256B-CU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
62
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
64K 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
100-TFBGA
Processor Series
91S
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
64 KB
Interface Type
CAN, Ethernet, SPI, I2S, TWI, USART, USB
Maximum Clock Frequency
55 MHz
Number Of Programmable I/os
62
Number Of Timers
3
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Package
100TFBGA
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
55 MHz
On-chip Adc
8-chx10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Part Number
Manufacturer
Quantity
Price
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38.4.3
Table 38-10. Crystal Characteristics
38.4.4
Table 38-11. XIN Clock Electrical Characteristics
Note:
622
Symbol
ESR
C
C
Symbol
1/(t
t
t
t
t
t
C
R
V
V
I
CPXIN
CHXIN
CLXIN
CLCH
CHCL
DDBP
XIN_IL
XIN_IH
M
SHUNT
IN
IN
CPXIN
1. These characteristics apply only when the Main Oscillator is in bypass mode (i.e., when MOSCEN = 0 and OSCBYPASS = 1
)
AT91SAM7X512/256/128 Preliminary
Crystal Characteristics
XIN Clock Characteristics
in the CKGR_MOR register, see the Clock Generator Main Oscillator Register.
Parameter
Equivalent Series Resistor Rs
Motional capacitance
Shunt capacitance
Parameter
XIN Clock Frequency
XIN Clock Period
XIN Clock High Half-period
XIN Clock Low Half-period
Rise Time
Fall Time
XIN Input Capacitance
XIN Pull-down Resistor
V
V
Bypass Current Consumption
XIN
XIN
Input Low-level Voltage
Input High-level Voltage
Figure 38-2. XIN CLock Timing
V
XIN_IL
V
XIN_IH
t
CPXIN
Conditions
Fundamental @3 MHz
Fundamental @8 MHz
Fundamental @16 MHz
Fundamental @20 MHz
Conditions
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
t
CPXIN
0.8 x V
Min
t
CLCH
20.0
Min
-0.3
8.0
8.0
DDPLL
t
CPXIN
Typ
t
CHXIN
0.2 x V
Max
50.0
1.95
400
400
500
46
15
6120H–ATARM–17-Feb-09
DDPLL
Max
200
100
80
50
8
7
t
CHCL
µW/MHz
Units
MHz
Unit
pF
kΩ
ns
ns
ns
pF
V
V
W
fF
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