參數(shù)資料
型號: AM29LV320DB120EE
廠商: SPANSION LLC
元件分類: PROM
英文描述: 2M X 16 FLASH 3V PROM, 120 ns, PDSO48
封裝: TSOP-48
文件頁數(shù): 3/53頁
文件大小: 1008K
代理商: AM29LV320DB120EE
July 30, 2002
Am29LV320D
11
RESET#: Hardware Reset Pin
The RESET# pin provides a hardware method of re-
setting the device to reading array data. When the RE-
SET# pin is driven low for at least a period of t
RP, the
device immediately terminates any operation in
progress, tristates all output pins, and ignores all
read/write commands for the duration of the RESET#
pulse. The device also resets the internal state ma-
chine to reading array data. The operation that was in-
terrupted should be reinitiated once the device is
ready to accept another command sequence, to en-
sure data integrity.
Current is reduced for the duration of the RESET#
pulse. When RESET# is held at V
SS±0.3 V, the device
draws CMOS standby current (I
CC4). If RESET# is held
at V
IL but not within VSS±0.3 V, the standby current will
be greater.
The RESET# pin may be tied to the system reset cir-
cuitry. A system reset would thus also reset the Flash
memory, enabling the system to read the boot-up firm-
ware from the Flash memory.
If RESET# is asserted during a program or erase op-
eration, the RY/BY# pin remains a “0” (busy) until the
internal reset operation is complete, which requires a
time of t
READY (during Embedded Algorithms). The
sys tem can thus monitor RY/BY # to det ermine
whether the reset operation is complete. If RESET# is
asserted when a program or erase operation is not ex-
ecuting (RY/BY# pin is “1”), the reset operation is com-
pleted within a time of t
READY (not during Embedded
Algorithms). The system can read data t
RH after the
RESET# pin returns to V
IH.
Refer to the AC Characteristics tables for RESET# pa-
rameters and to Figure 15 for the timing diagram.
Output Disable Mode
When the OE# input is at V
IH, output from the device is
disabled. The output pins are placed in the high
impedance state.
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