AT91SAM9261-CJ-999 Atmel, AT91SAM9261-CJ-999 Datasheet - Page 677

• Manufacturer Part Number: AT91SAM9261-CJ-999
• Description: IC MCU ARM9 ULTRA LP 217LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9261-CJ-999

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 190MHz
• Connectivity: EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: DMA, LCD, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: ROM
• Ram Size: 192K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 217-LFBGA
• For Use With: AT91SAM9261-EK - KIT EVAL FOR AT91SAM926EJ-SAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

39.7
Table 39-16. Power-On-Reset Characteristics
39.7.1
39.7.2
6062M–ATARM–23-Mar-09
Symbol
V
V
T
th+
th-
RES
Core Power Supply POR CHaracteristics
Power Sequence Requirements
Power-Up Sequence
Parameter
Threshold Voltage Rising
Threshold Voltage Falling
Reset Time
The AT91SAM9261 board design must comply with the power-up guidelines below to guarantee
reliable operation of the device. Any deviation from these sequences may prevent the device
from booting.
Figure 39-3.
VDDCORE and VDDBU are controlled by internal POR (Power-On-Reset) to guarantee that
these power sources reach their target values prior to the release of POR.
• VDDIOP must be ≥ to V
• VDDIOM must reach V
+ T1) after VDDCORE has reached
+T2) after VDDCORE has reached
– T
– T1 = 3 x T
– T2 = 16 x T
RES
VDDCOREtyp
Core Supply POR Output
is a POR characteristic
VDDIOtyp
VDD (V)
VDDCORE and VDDIO Constraints at Startup
SLCK
Vth+
Voh
Vih
SLCK
SLCK
Conditions
Minimum Slope of +2.0V/30ms
OH
IH
(refer to DC characteristics
(refer to DC characteristics table for more details) within (Tres +T1
V
V
th+
th+
.
<--- Tres --->
AT91SAM9261 Preliminary
< T1 >
<------------ T2----------->
Min
Table 39-2
0.7
0.6
50
Typ
170
0.9
0.8
for more details) within (Tres
VDDIO > Vih
VDDIO > Voh
VDDCORE
Max
1.08
300
1.0
VDDIO
t
Units
µs
V
V
677