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

• 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 Read Characteristics
AC Read Waveforms
Notes:
6
Symbo
l
t
t
t
t
t
ACC
CE
OE
DF
OH
(3)(4)
(1)
(2)
1. CE may be delayed up to t
2. OE may be delayed up to t
3. t
4. This parameter is characterized and is not 100% tested.
AT49LV1024/1025
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE or OE to Output Float
Output Hold from OE, CE or
Address, whichever occurred first
without impact on t
DF
is specified from OE or CE, whichever occurs first (C
ACC
(1)(2)(3)(4)
.
ACC
CE
- t
- t
OE
CE
after the falling edge of CE without impact on t
after the address transition without impact on t
AT49LV1024/1025-55
Min
0
0
Max
55
55
30
25
L
= 5 pF).
AT49LV1024/1025-70
Min
0
0
Max
70
70
35
25
CE
ACC
or by t
.
AT49LV1024/1025-90
ACC
Min
0
0
0
- t
OE
after an address change
Max
90
90
40
25
1278D–07/01
Units
ns
ns
ns
ns
ns