AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 622
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AT91SAM7X128
Manufacturer Part Number
AT91SAM7X128
Description
MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
Manufacturer
Atmel
Datasheet
1.AT91SAM7X512-AU-999.pdf
(687 pages)
Specifications of AT91SAM7X128
Package
100LQFP
Device Core
ARM7TDMI
Family Name
91S
Maximum Speed
55 MHz
Ram Size
32 KB
Program Memory Size
128 KB
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Program Memory Type
Flash
Number Of Programmable I/os
62
Interface Type
CAN/Ethernet/SPI/I2S/TWI/USART/USB
On-chip Adc
8-chx10-bit
Operating Temperature
-40 to 85 °C
Number Of Timers
3
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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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