AT91M63200-25AI Atmel, AT91M63200-25AI Datasheet - Page 2

• Manufacturer Part Number: AT91M63200-25AI
• Description: IC ARM7 MCU 176 TQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91M63200-25AI

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 58
• Program Memory Type: OTP
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-TQFP, 176-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Figure 1. NWAIT Rising
Figure 2. Number of Standard Wait States is Two
Note:
2
MCKI
NWAIT
NCS
The following waveforms further explain the issue:
If the NWAIT setup time is satisfied on the first rising edge of MCKI, the behavior is accurate. The EBI operations are
not affected when the NWAIT rises.
If the NWAIT setup time is satisfied on the following edges of MCKI and if at least one standard wait state remains to be
executed, the behavior is accurate. In the following example, the number of standard wait states is two. The NWAIT
setup time on the second rising edge of MCKI must be met.
1. These numbers refer to the standard access cycles.
NWAIT
AT91M63200/AT91M43300 Errata Sheet
MCKI
1
(1)
Standard Access Length with Two Wait States
NWAIT Setup before MCKI Rising (EB16)
EB16
2
(1)
3
(1)
1781B–01/02