AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 621

• Manufacturer Part Number: AT91SAM7X128
• Description: MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
• Manufacturer: Atmel

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

38.4.2
Table 38-9.
Notes:
6120H–ATARM–17-Feb-09
Symbol
1/(t
C
C
t
I
P
I
C
ST
DDST
DD ON
ON
L1
L
LEXT
(6)
CPMAIN
, C
(6)
L2
1. C
2. R
3. R
4. R
5. R
6. C
)
Main Oscillator Characteristics
S
S
S
S
S
L
and C
is the shunt capacitance.
= 100-200 Ω; C
= 50-100 Ω;
= 25-50 Ω; C
= 20-50 Ω; C
Main Oscillator Characteristics
Parameter
Crystal Oscillator Frequency
Internal Load Capacitance (C
Equivalent Load Capacitance
Duty Cycle
Startup Time
Standby Current Consumption
Drive level
Current dissipation
Maximum external capacitor
on XIN and XOUT
LEXT
→
SHUNT
SHUNT
C
SHUNT
SHUNT
= 2.5 - 3.0 pF; C
= 3.2 - 4.0 pF; C
= 2.0 - 2.5 pF; C
= 2.0 - 2.5 pF; C
L1
= C
C
L2
XIN
LEXT
M
M
)
M
M
= 7 -5 fF (typ, worst case).
= 10 - 8 fF (typ, worst case).
= 2 – 1.5 fF (typ, worst case) using 1 K ohm serial resistor on xout.
AT91SAM7X512/256/128 Preliminary
= 4 - 3 fF (typ, worst case).
Conditions
Integrated Load Capacitance
((XIN or XOUT))
Integrated Load Capacitance
(XIN and XOUT in series)
V
C
C
C
Standby mode
@3 MHz
@8 MHz
@16 MHz
@20 MHz
@3 MHz
@8 MHz
@16 MHz
@20 MHz
DDPLL
S
S
S
= 3 pF
= 7 pF
= 7 pF
AT91SAM7X
= 1.2 to 2V
(2)
(3)
(1)
(1)
(1)
(4)
(5)
C
1/(t
1/(t
1/(t
L
CPMAIN
CPMAIN
CPMAIN
C
XOUT
) = 16 MHz
LEXT
) = 3 MHz
) = 20 MHz
Min
34
17
30
3
Typ
150
150
300
400
16
40
20
50
Max
14.5
250
250
450
550
1.4
20
46
23
70
15
30
50
50
10
1
1
MHz
Unit
µW
ms
µA
µA
pF
pF
pF
%
621