AT91R40807-33AU Atmel, AT91R40807-33AU Datasheet - Page 10

• Manufacturer Part Number: AT91R40807-33AU
• Description: IC ARM7 MCU 100TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91R40807-33AU

• 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: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

AC Characteristics
EBI Signals Relative to MCKI
The following tables show timings relative to operating condition limits defined in in the section “Conditions” on page 6.
See Figure 5 on page 14.
Table 10. General-purpose EBI Signals
10
Symbol
EBI
EBI
EBI
EBI
EBI
EBI
1
2
3
4
5
6
AT91R40807
Parameter
MCKI Falling to NUB Valid
MCKI Falling to NLB/A0 Valid
MCKI Falling to A1 - A23 Valid
MCKI Falling to Chip Select Change
NWAIT Setup before MCKI Rising
NWAIT Hold after MCKI Rising
Conditions
C
C
C
C
C
C
C
C
NUB
NUB
NLB
NLB
ADD
ADD
NCS
NCS
= 0 pF
derating
derating
= 0 pF
derating
= 0 pF
derating
= 0 pF
0.032
0.032
0.032
0.032
Min
5.9
5.2
4.7
5.3
0.5
3.0
Max
11.6
0.05
0.05
0.05
10.8
0.05
8.8
9.9
Units
ns/pF
ns/pF
ns/pF
ns/pF
1367C–01/02
ns
ns
ns
ns
ns
ns