Datasheet > FM25C160B-GA

FM25C160B-GA

更新时间： 2024-01-23 16:23:39

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		静态存储器光电二极管内存集成电路
页数	文件大小	规格书
20页	716K
描述
Memory Circuit, 2KX8, CMOS, PDSO8, GREEN, MS-012AA, SOIC-8

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中文翻译

获取价格

技术参数
数据手册
替代型号

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FM25C160B-GA 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Transferred	零件包装代码：	SOIC
包装说明：	SOP,	针数：	8
Reach Compliance Code：	unknown	HTS代码：	8542.32.00.71
风险等级：	5.76	JESD-30 代码：	R-PDSO-G8
长度：	4.9 mm	内存密度：	16384 bit
内存集成电路类型：	MEMORY CIRCUIT	内存宽度：	8
湿度敏感等级：	1	功能数量：	1
端子数量：	8	字数：	2048 words
字数代码：	2000	工作模式：	SYNCHRONOUS
最高工作温度：	125 °C	最低工作温度：	-40 °C
组织：	2KX8	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	1.75 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	4.5 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	AUTOMOTIVE
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	3.9 mm

FM25C160B-GA 数据手册

FM25C160B

SPI Modes

Table 1. Opcode commands

Name Description

WREN

FM25C160B may be driven by a microcontroller with its SPI

peripheral running in either of the following two modes:

Opcode

0000 0110b

0000 0100b

0000 0101b

0000 0001b

0000 0011b

0000 0010b

Set write enable latch

Write disable

■ SPI Mode 0 (CPOL = 0, CPHA = 0)

■ SPI Mode 3 (CPOL = 1, CPHA = 1)

WRDI

RDSR

WRSR

READ

WRITE

Read Status Register

Write Status Register

Read memory data

Write memory data

For both these modes, the input data is latched in on the rising

edge of SCK starting from the first rising edge after CS goes

active. If the clock starts from a HIGH state (in mode 3), the first

rising edge after the clock toggles is considered. The output data

is available on the falling edge of SCK.

WREN - Set Write Enable Latch

The two SPI modes are shown in Figure 4 on page 6 and Figure

5 on page 6. The status of the clock when the bus master is not

transferring data is:

The FM25C160B will power up with writes disabled. The WREN

command must be issued before any write operation. Sending

the WREN opcode allows the user to issue subsequent opcodes

for write operations. These include writing the Status Register

(WRSR) and writing the memory (WRITE).

■ SCK remains at 0 for Mode 0

■ SCK remains at 1 for Mode 3

Sending the WREN opcode causes the internal Write Enable

Latch to be set. A flag bit in the Status Register, called WEL,

indicates the state of the latch. WEL = ‘1’ indicates that writes are

permitted. Attempting to write the WEL bit in the Status Register

has no effect on the state of this bit – only the WREN opcode can

set this bit. The WEL bit will be automatically cleared on the rising

edge of CS following a WRDI, a WRSR, or a WRITE operation.

This prevents further writes to the Status Register or the F-RAM

array without another WREN command. Figure 6 illustrates the

WREN command bus configuration.

The device detects the SPI mode from the status of the SCK pin

when the device is selected by bringing the CS pin LOW. If the

SCK pin is LOW when the device is selected, SPI Mode 0 is

assumed and if the SCK pin is HIGH, it works in SPI Mode 3.

Figure 4. SPI Mode 0

SCK

Figure 6. WREN Bus Configuration

MSB

LSB

SCK

Figure 5. SPI Mode 3

HI-Z

WRDI - Reset Write Enable Latch

The WRDI command disables all write activity by clearing the

Write Enable Latch. The user can verify that writes are disabled

by reading the WEL bit in the Status Register and verifying that

WEL is equal to ‘0’. Figure 7 illustrates the WRDI command bus

configuration.

SCK

MSB

LSB

Figure 7. WRDI Bus Configuration

Power Up to First Access

The FM25C160B is not accessible for a t_PUtime after power up.

Users must comply with the timing parameter t_PU, which is the

minimum time from V_DD(min) to the first CS LOW.

SCK

Command Structure

There are six commands, called opcodes, that can be issued by

the bus master to the FM25C160B. They are listed in Table 1.

These opcodes control the functions performed by the memory.

HI-Z

Document Number: 001-86150 Rev. *C

Page 6 of 20

1...3 4 567 8 9...20

中文翻译

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FM25C160B-GA 替代型号

型号	品牌	替代类型	描述	数据表
FM25C160B-GTR	CYPRESS	功能相似	16Kb Serial 5V F-RAM Memory

与FM25C160B-GA相关器件

型号	品牌	获取价格	描述	数据表
FM25C160B-GTR	CYPRESS	获取价格	16Kb Serial 5V F-RAM Memory
FM25C160B-GTR	INFINEON	获取价格	铁电存储器 (F-RAM)
FM25C160C	RAMTRON	获取价格	16Kb Serial 5V F-RAM Memory
FM25C160C-G	RAMTRON	获取价格	16Kb Serial 5V F-RAM Memory
FM25C160C-GTR	RAMTRON	获取价格	16Kb Serial 5V F-RAM Memory
FM25C160-G	RAMTRON	获取价格	Memory Circuit, 2KX8, CMOS, PDSO8, GREEN, MS-012AA, SOIC-8
FM25C160-GA	RAMTRON	获取价格	16Kb FRAM Serial Memory
FM25C160-GTR	RAMTRON	获取价格	Memory Circuit, 2KX8, CMOS, PDSO8, GREEN, MS-012AA, SOIC-8
FM25C160-P	ETC	获取价格	IC 16K SERIAL FRAM
FM25C160-S	ETC	获取价格	IC-SM-16K SERIAL FRAM

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