参数资料
型号: NAND512W3A2SN6E
元件分类: PROM
英文描述: 64M X 8 FLASH 3V PROM, PDSO48
封装: 12 X 20 MM, ROHS COMPLIANT, PLASTIC, TSOP-48
文件页数: 5/51页
文件大小: 1009K
代理商: NAND512W3A2SN6E
Numonyx SLC SP 70 nm
Signal descriptions
210403 - Rev 3
3
Signal descriptions
See Figure 1: Logic diagram, and Table 3: Signal names, for a brief overview of the signals
connected to the devices. Table 5 provides the detailed descriptions of the signals.
Table 5.
Signal descriptions
Symbol
Type
Description
Input/Output signals
I/O0-I/O7
Input/Output
Input/outputs 0 to 7 are used to input the selected address,
output the data during a read operation or input a
command or data during a write operation. The inputs are
latched on the rising edge of Write Enable. I/O0-I/O7 are
left floating when the device is deselected or the outputs
are disabled.
I/O8-I/O15
Input/Output
Input/outputs 8 to 15 are only available in x16 devices.
They are used to output the data during a read operation or
input data during a write operation. Command and address
inputs only require I/O0 to I/O7.
The inputs are latched on the rising edge of Write Enable.
I/O8-I/O15 are left floating when the device is deselected
or the outputs are disabled.
Control signals
AL
Input
The Address Latch Enable activates the latching of the
address inputs in the command interface. When AL is
High, the inputs are latched on the rising edge of Write
Enable.
CL
Input
The Command Latch Enable activates the latching of the
command inputs in the command interface. When CL is
High, the inputs are latched on the rising edge of Write
Enable.
E
Input
The Chip Enable input activates the memory control logic,
input buffers, decoders and read circuitry. When Chip
Enable is Low, VIL, the device is selected.
If Chip Enable goes High (VIH) while the device is busy
programming or erasing, the device remains selected and
does not go into standby mode.
While the device is busy reading:
– the Chip Enable input should be held Low during the
whole busy time (tBLBH1) for devices that do not feature
the Chip Enable don’t care option. Otherwise, the read
operation in progress is interrupted and the device goes
into standby mode.
– for devices that feature the Chip Enable don’t care
option, the Chip Enable going High during the busy time
(tBLBH1) will not interrupt the read operation and the
device will not go into standby mode.
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