AT49BV8192 ATMEL Corporation, AT49BV8192 Datasheet - Page 4

• Manufacturer Part Number: AT49BV8192
• Description: 8-Megabit 512K x 16 CMOS Flash Memory
• Manufacturer: ATMEL Corporation

T O G G L E B I T : I n a d d i t i o n t o D A T A p o l l i n g t h e
AT49BV/LV8192 provides another method for determining
the end of a program or erase cycle. During a program or
erase operation, successive attempts to read data from the
device will result in I/O6 toggling between one and zero.
Once the program cycle has completed, I/O6 will stop tog-
gling and valid data will be read. Examining the toggle bit
may begin at any time during a program cycle.
HARDWARE DATA PROTECTION: Hardware features
p r o t e c t a g a i n s t i n a d v e r t e n t p r o g r a m s t o t h e
AT49BV/LV8192 in the following ways: (a) V
V
4
CC
is below 1.8V (typical), the program function is inhib-
AT49BV/LV8192(T)
CC
sense: if
ited. (b) V
V
ms (typical) before programming. (c) Program inhibit: hold-
ing any one of OE low, CE high or WE high inhibits pro-
gram cycles. (d) Noise filter: pulses of less than 15 ns (typi-
cal) on the WE or CE inputs will not initiate a program
cycle.
INPUT LEVELS: While operating with a 2.7V 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
CC
sense level, the device will automatically time out 10
CC
power on delay: once V
CC
+ 0.6V.
CC
has reached the