AT91M40800-33AI Atmel, AT91M40800-33AI Datasheet - Page 12

• Manufacturer Part Number: AT91M40800-33AI
• Description: IC ARM7 MCU 100 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M40800-33AI

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

Table 12. EBI Read Signals
Notes:
12
Symbol
EBI
EBI
EBI
EBI
EBI
EBI
EBI
EBI
EBI
EBI
EBI
EBI
EBI
EBI
21
22
23
24
25
26
27
28
29
30
31
32
33
34
1. Early Read Protocol.
2. Standard Read Protocol.
3. The derating factor should not be applied to t
4. n = number of standard wait states inserted.
5. Only one of these two timings needs to be met.
AT91M40800 Electrical Characteristics
Parameter
MCKI Falling to NRD Active
MCKI Rising to NRD Active
MCKI Falling to NRD Inactive
MCKI Falling to NRD Inactive
D0 - D15 In Setup before MCKI Falling Edge
D0 - D15 In Hold after MCKI Falling Edge
NRD High to NUB Change
NRD High to NLB/A0 Change
NRD High to A1 - A23 Change
NRD High to Chip Select Inactive
Data Setup before NRD High
Data Hold after NRD High
NRD Minimum Pulse Width
NRD Minimum Pulse Width
(5)
(2)
(1)(3)
(2)(3)
(1)
(5)
(1)
(2)
(5)
CH
(5)
or t
CP
.
Conditions
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
NRD
NRD
NRD
NRD
NRD
NRD
NRD
NRD
NUB
NUB
NLB
NLB
ADD
ADD
NCS
NCS
NRD
NRD
NRD
NRD
NRD
NRD
NRD
NRD
= 0 pF
derating
= 0 pF
= 0 pF
derating
= 0 pF
derating
= 0 pF
derating
= 0 pF
derating
= 0 pF
derating
= 0 pF
derating
= 0 pF
derating
= 0 pF
derating
= 0 pF
derating
derating
= 0 pF
derating
n x t
(n +1) t
CP
-0.034
-0.013
+ (t
-0.013
0.042
0.042
0.034
0.034
0.034
0.042
0.042
0.034
0.053
Min
-0.3
-2.4
5.0
4.1
5.2
4.9
4.0
4.1
3.3
3.2
3.6
9.0
CP
CH
- 0.7
- 0.9)
(4)
(4)
1393C–ATARM–19-Nov-04
0.066
0.066
0.053
0.053
0.066
0.066
0.066
0.066
Max
9.0
8.6
9.4
7.7
8.4
5.2
7.1
6.9
Units
ns/pF
ns/pF
ns/pF
ns/pF
ns/pF
ns/pF
ns/pF
ns/pF
ns/pF
ns/pF
ns/pF
ns/pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns