AT52BR1664A-90CI Atmel, AT52BR1664A-90CI Datasheet - Page 10

• Manufacturer Part Number: AT52BR1664A-90CI
• Manufacturer: Atmel

Specifications of AT52BR1664A-90CI

• Operating Supply Voltage (max): 3.3V
• Operating Temperature (max): 85C
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

RDY/BUSY: For the 16-Mbit Flash, an open-drain READY/BUSY output pin provides another
method of detecting the end of a program or erase operation. RDY/BUSY is actively pulled low
during the internal program and erase 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. Please see “Status Bit Table” on page 13 for more details.
HARDWARE DATA PROTECTION: The Hardware Data Protection feature protects against
inadvertent programs to the device in the following ways: (a) V
sense: if V
is below 1.8V
CC
CC
(typical), the program function is inhibited. (b) V
power-on delay: once V
has reached the
CC
CC
V
sense level, the device will automatically time out 10 ms (typical) before programming. (c)
CC
Program inhibit: holding any one of OE low, CE high or WE high inhibits program cycles. (d)
Program inhibit: V
is less than V
. (e) V
power-on delay: once V
has reached 1.65V,
PP
ILPP
PP
PP
program and erase operations are inhibited for 100 ns.
INPUT LEVELS: While operating with a 2.7V to 3.3V 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
+ 0.6V.
CC
AT52BR1664A(T)
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