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N25Q512A13GF840E 参数 Datasheet PDF下载

N25Q512A13GF840E图片预览
型号: N25Q512A13GF840E
PDF下载: 下载PDF文件 查看货源
内容描述: 美光的串行NOR闪存3V ,多个I / O, 4KB扇区擦除N25Q512A [Micron Serial NOR Flash Memory 3V, Multiple I/O, 4KB Sector Erase N25Q512A]
分类和应用: 闪存
文件页数/大小: 91 页 / 1214 K
品牌: MICRON [ MICRON TECHNOLOGY ]
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512Mb, Multiple I/O Serial Flash Memory  
Signal Descriptions  
Signal Descriptions  
The signal description table below is a comprehensive list of signals for the N25 family  
devices. All signals listed may not be supported on this device. See Signal Assignments  
for information specific to this device.  
Table 1: Signal Descriptions  
Symbol  
Type  
Description  
C
Input  
Clock: Provides the timing of the serial interface. Commands, addresses, or data present at se-  
rial data inputs are latched on the rising edge of the clock. Data is shifted out on the falling  
edge of the clock.  
S#  
Input  
Chip select: When S# is HIGH, the device is deselected and DQ1 is at High-Z. When in exten-  
ded SPI mode, with the device deselected, DQ1 is tri-stated. Unless an internal PROGRAM,  
ERASE, or WRITE STATUS REGISTER cycle is in progress, the device enters standby power mode  
(not deep power-down mode). Driving S# LOW enables the device, placing it in the active pow-  
er mode. After power-up, a falling edge on S# is required prior to the start of any command.  
DQ0  
Input  
and I/O  
Serial data: Transfers data serially into the device. It receives command codes, addresses, and  
the data to be programmed. Values are latched on the rising edge of the clock. DQ0 is used for  
input/output during the following operations: DUAL OUTPUT FAST READ, QUAD OUTPUT FAST  
READ, DUAL INPUT/OUTPUT FAST READ, and QUAD INPUT/OUTPUT FAST READ. When used for  
output, data is shifted out on the falling edge of the clock.  
In DIO-SPI, DQ0 always acts as an input/output.  
In QIO-SPI, DQ0 always acts as an input/output, with the exception of the PROGRAM or ERASE  
cycle performed with VPP. The device temporarily enters the extended SPI protocol and then re-  
turns to QIO-SPI as soon as VPP goes LOW.  
DQ1  
Output  
and I/O  
Serial data:Transfers data serially out of the device. Data is shifted out on the falling edge of  
the clock. DQ1 is used for input/output during the following operations: DUAL INPUT FAST  
PROGRAM, QUAD INPUT FAST PROGRAM, DUAL INPUT EXTENDED FAST PROGRAM, and QUAD  
INPUT EXTENDED FAST PROGRAM. When used for input, data is latched on the rising edge of  
the clock.  
In DIO-SPI, DQ1 always acts as an input/output.  
In QIO-SPI, DQ1 always acts as an input/output, with the exception of the PROGRAM or ERASE  
cycle performed with the enhanced program supply voltage (VPP). In this case the device tem-  
porarily enters the extended SPI protocol and then returns to QIO-SPI as soon as VPP goes LOW.  
DQ2  
Input  
and I/O  
DQ2: When in QIO-SPI mode or in extended SPI mode using QUAD FAST READ commands, the  
signal functions as DQ2, providing input/output.  
All data input drivers are always enabled except when used as an output. Micron recommends  
customers drive the data signals normally (to avoid unnecessary switching current) and float  
the signals before the memory device drives data on them.  
DQ3  
Input  
and I/O  
DQ3: When in quad SPI mode or in extended SPI mode using quad FAST READ commands, the  
signal functions as DQ3, providing input/output. HOLD# is disabled and RESET# is disabled if  
the device is selected.  
RESET#  
Control  
Input  
RESET: This is a hardware RESET# signal. When RESET# is driven HIGH, the memory is in the  
normal operating mode. When RESET# is driven LOW, the memory enters reset mode and out-  
put is High-Z. If RESET# is driven LOW while an internal WRITE, PROGRAM, or ERASE operation  
is in progress, data may be lost.  
PDF: 09005aef84752721  
n25q_512mb_1ce_3V_65nm.pdf - Rev. O 05/13 EN  
Micron Technology, Inc. reserves the right to change products or specifications without notice.  
9
© 2011 Micron Technology, Inc. All rights reserved.  
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