參數(shù)資料
型號: NAND512R4A2CZD6E
廠商: NUMONYX
元件分類: PROM
英文描述: 32M X 16 FLASH 1.8V PROM, 15000 ns, PBGA55
封裝: 8 X 10 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFBGA-55
文件頁數(shù): 6/55頁
文件大?。?/td> 1377K
代理商: NAND512R4A2CZD6E
Signal descriptions
NAND512-A2C
3
Signal descriptions
See Figure 1: Logic diagram, and Table 3: Signal names, for a brief overview of the signals
connected to this device.
3.1
Inputs/outputs (I/O0-I/O7)
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.
3.2
Inputs/outputs (I/O8-I/O15)
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.
3.3
Address Latch Enable (AL)
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.
3.4
Command Latch Enable (CL)
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.
3.5
Chip Enable (E)
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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