Datasheet > FM93C46ALZVMT8X

FM93C46ALZVMT8X

更新时间： 2024-01-16 00:23:05

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		可编程只读存储器电动程控只读存储器电可擦编程只读存储器时钟光电二极管内存集成电路
页数	文件大小	规格书
13页	120K
描述
EEPROM, 64X16, Serial, CMOS, PDSO8, PLASTIC, TSSOP-8

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技术参数
数据手册

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FM93C46ALZVMT8X 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	TSSOP,	针数：	8
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.32.00.51	风险等级：	5.38
其他特性：	DATA RETENTION = 40 YEARS	备用内存宽度：	8
最大时钟频率 (fCLK)：	0.25 MHz	数据保留时间-最小值：	40
JESD-30 代码：	R-PDSO-G8	长度：	4.4 mm
内存密度：	1024 bit	内存集成电路类型：	EEPROM
内存宽度：	16	功能数量：	1
端子数量：	8	字数：	64 words
字数代码：	64	工作模式：	SYNCHRONOUS
最高工作温度：	125 °C	最低工作温度：	-40 °C
组织：	64X16	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	并行/串行：	SERIAL
认证状态：	Not Qualified	座面最大高度：	1.2 mm
串行总线类型：	MICROWIRE	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	2.7 V	标称供电电压 (Vsup)：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	AUTOMOTIVE	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
宽度：	3 mm	最长写入周期时间 (tWC)：	15 ms
Base Number Matches：	1

FM93C46ALZVMT8X 数据手册

Refer Table 1 and Table 2 for more details. This pin is internally

pulled-up to V_CC. Hence leaving this pin unconnected would

default to 16-bit data format.

Pin Description

Chip Select (CS)

ThisisanactivehighinputpintoFM93C46AEEPROM(thedevice)

and is generated by a master that is controlling the device. A high

level on this pin selects the device and a low level deselects the

device. All serial communications with the device is enabled only

when this pin is held high. However this pin cannot be permanently

tied high, as a rising edge on this signal is required to reset the

internal state-machine to accept a new cycle and a falling edge to

initiateaninternalprogrammingafterawritecycle.Allactivityonthe

SK, DI and DO pins are ignored while CS is held low.

Microwire Interface

AtypicalcommunicationontheMicrowirebusismadethroughthe

CS, SK, DI and DO signals. To facilitate various operations on the

Memory array, a set of 7 instructions are implemented on

FM93C46A. The format of each instruction is listed under Table 1

(for 16-bit format) and Table 2 (for 8-bit format).

Instruction

Each of the above 7 instructions is explained under individual

instruction descriptions.

Serial Clock (SK)

Thisisaninputpintothedeviceandisgeneratedbythemasterthat

is controlling the device. This is a clock signal that synchronizes the

communicationbetweenamasterandthedevice. Allinputinforma-

tion(DI)tothedeviceislatchedontherisingedgeofthisclockinput,

whileoutputdata(DO)fromthedeviceisdrivenfromtherisingedge

of this clock input. This pin is gated by CS signal.

Start bit

This is a 1-bit field and is the first bit that is clocked into the device

whenaMicrowirecyclestarts.Thisbithastobe“1”foravalidcycle

to begin. Any number of preceding “0” can be clocked into the

device before clocking a “1”.

Serial Input (DI)

Opcode

This is an input pin to the device and is generated by the master

that is controlling the device. The master transfers Input informa-

tion (Start bit, Opcode bits, Array addresses and Data) serially via

this pin into the device. This Input information is latched on the

rising edge of the SCK. This pin is gated by CS signal.

This is a 2-bit field and should immediately follow the start bit.

These two bits (along with 2 MSB of address field) select a

particular instruction to be executed.

Address Field

Serial Output (DO)

Depending on the selected organization, this is a 6-bit or 7-bit field

and should immediately follow the Opcode bits. In FM93C46A, all

6 bits (or 7 bits) are used for address decoding during READ,

WRITE and ERASE instructions. During all other instructions, the

MSB 2 bits are used to decode instruction (along with Opcode bits).

This is an output pin from the device and is used to transfer Output

data via this pin to the controlling master. Output data is serially

shifted out on this pin from the rising edge of the SCK. This pin is

active only when the device is selected.

Data Field

Organization (ORG)

Depending on the selected organization, this is a 16-bit or 8-bit

field and should immediately follow the Address bits. Only the

WRITE and WRALL instructions require this field. MSB bit (D15 or

D7) is clocked first and LSB bit (D0) is clocked last (both during

writes as well as reads).

This is an input pin to the device and is used to select the format

of data (16-bit or 8-bit). If this pin is tied high, 16-bit format is

selected, while if it is tied low, 8-bit format is selected. Depending

ontheformatselected,FM93C46Arequires6-bitaddressfield(for

16-bit data format) or 7-bit address field (for 8-bit data format).

Table 1. Instruction set (16-bit organization)

Instruction

READ

Start Bit

Opcode Field

Address Field

Data Field

A5 A4 A3 A2 A1 A0

WEN

WRITE

WRALL

WDS

A5 A4 A3 A2 A1 A0

D15-D0

ERASE

ERAL

A5 A4 A3 A2 A1 A0

www.fairchildsemi.com

FM93C46A Rev. C.1

1 2 3 456 7 8...13

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与FM93C46ALZVMT8X相关器件

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FM93C46AMT8	ETC	Microwire Serial EEPROM	获取价格
FM93C46AMT8X	FAIRCHILD	EEPROM, 64X16, Serial, CMOS, PDSO8, PLASTIC, TSSOP-8	获取价格
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