AT91R40807-33AI Atmel, AT91R40807-33AI Datasheet - Page 6

• Manufacturer Part Number: AT91R40807-33AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91R40807-33AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Conditions
Timing Results
6
AT91R40807
The delays are given as typical values in the following conditions:
•
•
•
•
•
The minimum and maximum values given in the AC characteristics tables of this datasheet
take into account the process variation and the design.
In order to obtain the timing for other conditions, the following equation should be used:
where
•
•
•
•
•
The input delays are given as typical value.
Note:
V
Ambient Temperature = 25°C
Load Capacitance is 0 pF
The output level change detection is (0.5 x V
The input level is (0.3 x V
detection.
δ
δ
t
capacitance of 0 pF.
C
δ
pins given in Min and Max in this datasheet.
t
datasheet
T°
VDD
CSignal
DD
Signal
=
is the derating factor in temperature given in the Figure 1 on page 7.
1. The user must take into account the package capacitance load contribution (C
= 3.3V
δ
is the derating factor for the Power Supply given in Figure 2 on page 7.
T °
is the capacitance load on the considered output pin.
is the load derating factor depending on the capacitance load on the related output
in Table 1 on page 2.
×
is the minimum or maximum timing value given in this datasheet for a load
δ
VDD
×
t (
DATASHEET
DD
) for a low-level detection and is (0.7 x V
+
(
C
SIGNAL
DD
).
×
δ
CSIGNAL
) )
(1)
DD
) for a high level
IN
) described
1367C–01/02