AT91FR40162S-CJ Atmel, AT91FR40162S-CJ Datasheet - Page 55

• Manufacturer Part Number: AT91FR40162S-CJ
• Description: IC ARM MCU FLASH 1K 121BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91FR40162S-CJ

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 75MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 2MB (1M x 16)
• Program Memory Type: FLASH
• Ram Size: 256K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 121-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

11.3.8
11.3.9
11.3.10
6174B–ATARM–07-Nov-05
Common Flash Interface (CFI)
Hardware Data Protection
Input Levels
cycles and is released at the completion of the cycle. The open-drain connection allows for OR-
tying of several devices to the same RDY/BUSY line. See
page 60
CFI is a published, standardized data structure that may be read from a flash device. CFI allows
system software to query the installed device to determine the configurations, various electrical
and timing parameters, and functions supported by the device. CFI is used to allow the system
to learn how to interface to the flash device most optimally. The two primary benefits of using
CFI are ease of upgrading and second source availability. The command to enter the CFI Query
mode is a one-bus cycle command which requires writing data 98h to address 55h. The CFI
Query command can be written when the device is ready to read data or can also be written
when the part is in the product ID mode. Once in the CFI Query mode, the system can read CFI
data at the addresses given in
exit the CFI Query mode, the product ID exit command must be given.
The Hardware Data Protection feature protects against inadvertent programs to the Flash Mem-
ory in the following ways: (a) V
inhibited. (b) V
automatically time out 10 ms (typical) before programming. (c) Program inhibit: holding any one
of OE low, CE high or WE high inhibits program cycles. (d) Program inhibit: V
V
inhibited for 100 ns.
While operating with a 2.65V to 3.6V power supply, the address inputs and control inputs (OE,
CE and WE) may be driven from 0 to 5.5V without adversely affecting the operation of the
device. The I/O lines can only be driven from 0 to V
ILPP
. (e) V
for more details.
PP
power-on delay: once V
CC
power-on delay: once V
Table 11-5, “Common Flash Interface Definition,” on page
CC
sense: if V
PP
has reached 1.65V, program and erase operations are
CC
AT91FR40162S Preliminary
CC
has reached the V
is below 1.8V (typical), the program function is
CC
+ 0.6V.
Table 11-1, “Status Bit Table,” on
CC
sense level, the device will
PP
is less than
66. To
55