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M24M01-R M24M01-DF

1-Mbit serial I²C bus EEPROM

Datasheet

production data

Features

•

Compatible with all I

C bus modes:

– 1 MHz

– 400 kHz

– 100 kHz

•

Memory array:

– 1 Mbit (128 Kbyte) of EEPROM

– Page size: 256 byte

– Additional Write lockable page (M24M01-D

order codes)

•

Single supply voltage and high speed:

– 1 MHz clock from 1.7 V to 5.5 V

•

Write:

– Byte Write within 5 ms

– Page Write within 5 ms

SO8 (MN)

150 mil width

TSSOP8 (DW)

169 mil width

WLCSP (CS, CX)

•

Operating temperature range:

– from -40 °C up to +85 °C

•

Random and sequential Read modes

•

Write protect of the whole memory array

•

Enhanced ESD/Latch-Up protection

•

More than 4 million Write cycles

•

More than 200-years data retention

Unsawn wafer

Packages

•

SO8 ECOPACK2

•

TSSOP8 ECOPACK2

•

WLCSP ECOPACK2

•

Unsawn wafer (each die is tested)

October 2017

This is information on a product in full production.

DocID12943 Rev 14

1/47

www.st.com

Contents

M24M01-R M24M01-DF

Contents

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1

2.2

2.3

2.4

2.5

2.6

Serial Clock (SCL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Serial Data (SDA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chip Enable (E1, E2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Write Control (WC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

(ground) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Supply voltage (V

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.6.1

2.6.2

2.6.3

2.6.4

Operating supply voltage (V

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Power-up conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Device reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Power-down conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Memory organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1

4.2

4.3

4.4

4.5

Start condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Data input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Acknowledge bit (ACK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Device addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.1

Write operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.1.1

5.1.2

5.1.3

5.1.4

5.1.5

5.1.6

Byte Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Page Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Write Identification Page (M24M01-D only) . . . . . . . . . . . . . . . . . . . . . . 17

Lock Identification Page (M24M01-D only) . . . . . . . . . . . . . . . . . . . . . . 17

ECC (Error Correction Code) and Write cycling . . . . . . . . . . . . . . . . . . 17

Minimizing Write delays by polling on ACK . . . . . . . . . . . . . . . . . . . . . . 18

Random Address Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2

Read operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2.1

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M24M01-R M24M01-DF

5.2.2

5.2.3

Contents

Current Address Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Sequential Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3

5.4

Read Identification Page (M24M01-D only) . . . . . . . . . . . . . . . . . . . . . . . 20

Read the lock status (M24M01-D only) . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Initial delivery state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

9.1

9.2

9.3

9.4

TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SO8N package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

WLCSP8 ultra thin package information . . . . . . . . . . . . . . . . . . . . . . . . . 36

WLCSP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

DocID12943 Rev 14

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List of tables

M24M01-R M24M01-DF

List of tables

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Table 9.

Table 10.

Table 11.

Table 12.

Table 13.

Table 14.

Table 15.

Table 16.

Table 17.

Table 18.

Table 19.

Table 20.

Table 21.

Table 22.

Table 23.

Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Device select code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Most significant address byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Least significant address byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Operating conditions (voltage range R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Operating conditions (voltage range F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

AC measurement conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Input parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Cycling performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Memory cell data retention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

DC characteristics (M24M01-R, device grade 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

DC characteristics (M24M01-DF, device grade 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

400 kHz AC characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

1 MHz AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

TSSOP8 – 3 x 4.4 mm, 0.65 mm pitch, 8-lead thin shrink small outline,

package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SO8N – 3.9x4.9 mm, 8-lead plastic small outline, 150 mils body width,

package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

WLCSP - 8 balls, 2.578x1.716 mm, 0.5 mm pitch, wafer level chip scale

mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

WLCSP- 8-bump, without BSC, 2.578 x 1.716 mm, wafer level chip scale

package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

WLCSP- 8-bump, with BSC, 2.578 x 1.716 mm, wafer level chip scale

package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Ordering information scheme (unsawn wafer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

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DocID12943 Rev 14

M24M01-R M24M01-DF

List of figures

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

Figure 11.

Figure 12.

Figure 13.

Figure 14.

Figure 15.

Figure 16.

Figure 17.

Figure 18.

Figure 19.

Figure 20.

Figure 21.

Figure 22.

Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

8-pin package connections, top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

WLCSP connections (top view, marking side,

with balls on the underside) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chip enable inputs connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

C bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Write mode sequences with WC = 0 (data write enabled) . . . . . . . . . . . . . . . . . . . . . . . . . 15

Write mode sequences with WC = 1 (data write inhibited) . . . . . . . . . . . . . . . . . . . . . . . . . 16

Write cycle polling flowchart using ACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Read mode sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

AC measurement I/O waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Maximum Rbus value versus bus parasitic capacitance (Cbus) for

an I2C bus at maximum frequency fC = 400 kHz

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Maximum R

bus

value versus bus parasitic capacitance C

bus

) for

an I

C bus at maximum frequency f

= 1MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

TSSOP8 – 3x4.4 mm, 0.65 mm pitch, 8-lead thin shrink small outline,

package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SO8N – 3.9x4.9 mm, 8-lead plastic small outline, 150 mils body width, package outline . 34

SO8N – 3.9x4.9 mm, 8-lead plastic small outline, 150 mils body width,

package recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

WLCSP - 8 balls, 2.578x1.716 mm, 0.5 mm pitch, wafer level chip scale

package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

WLCSP - 8 balls, 2.578x1.716 mm, 0.5 mm pitch, wafer level chip scale

recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

WLCSP- 8-bump, without BSC, 2.578 x 1.716 mm, wafer level chip scale

package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

WLCSP- 8-bump, with BSC, 2.578 x 1.716 mm, wafer level chip scale

package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

WLCSP- 8-bump, 2.578 x 1.716 mm, wafer level chip scale

package recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

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参数对比

与M24M01-HRMN6TG相近的元器件有：M24M01-HRMW6TP、M24M01-HRMN6G、M24M01-HRMW6TG、M24M01-RMN6G、M24M01-HRMW6G、M24M01-HRMW6P、M24M01-RMW6P、M24M01-RMN6TG、M24M01-RMW6TP。描述及对比如下：

型号	M24M01-HRMN6TG	M24M01-HRMW6TP	M24M01-HRMN6G	M24M01-HRMW6TG	M24M01-RMN6G	M24M01-HRMW6G	M24M01-HRMW6P	M24M01-RMW6P	M24M01-RMN6TG	M24M01-RMW6TP
描述	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8	256K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
是否Rohs认证	符合	符合	符合	符合	符合	符合	符合	符合	符合	符合
零件包装代码	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC	SOIC
包装说明	0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8	0.208 INCH, ROHS COMPLIANT, PLASTIC, SOP-8	0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8	0.208 INCH, ROHS COMPLIANT, PLASTIC, SOP-8	0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8	0.208 INCH, ROHS COMPLIANT, PLASTIC, SOP-8	0.208 INCH, ROHS COMPLIANT, PLASTIC, SOP-8	0.208 INCH, ROHS COMPLIANT, PLASTIC, SOP-8	0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8	0.208 INCH, ROHS COMPLIANT, PLASTIC, SOP-8
针数	8	8	8	8	8	8	8	8	8	8
Reach Compliance Code	compli	compli	compli	compli	compli	compliant	compli	compli	compli	compli
ECCN代码	3A991.B.1.B.1	3A991.B.1.B.1	3A991.B.1.B.1	3A991.B.1.B.1	3A991.B.1.B.1	3A991.B.1.B.1	3A991.B.1.B.1	3A991.B.1.B.1	3A991.B.1.B.1	3A991.B.1.B.1
最大时钟频率 (fCLK)	1 MHz	1 MHz	1 MHz	1 MHz	0.4 MHz	1 MHz	1 MHz	0.4 MHz	0.4 MHz	0.4 MHz
数据保留时间-最小值	40	40	40	40	40	40	40	40	40	40
耐久性	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles	1000000 Write/Erase Cycles
I2C控制字节	1010DDMR	1010DDMR	1010DDMR	1010DDMR	1010DDMR	1010DDMR	1010DDMR	1010DDMR	1010DDMR	1010DDMR
JESD-30 代码	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8
内存密度	2097152 bi	2097152 bi	2097152 bi	2097152 bi	2097152 bi	2097152 bit	2097152 bi	2097152 bi	2097152 bi	2097152 bi
内存集成电路类型	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM
内存宽度	8	8	8	8	8	8	8	8	8	8
功能数量	1	1	1	1	1	1	1	1	1	1
端子数量	8	8	8	8	8	8	8	8	8	8
字数	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words
字数代码	256000	256000	256000	256000	256000	256000	256000	256000	256000	256000
工作模式	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
最高工作温度	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
组织	256KX8	256KX8	256KX8	256KX8	256KX8	256KX8	256KX8	256KX8	256KX8	256KX8
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	SOP	SOP	SOP	SOP	SOP	SOP	SOP	SOP	SOP	SOP
封装等效代码	SOP8,.25	SOP8,.3	SOP8,.25	SOP8,.3	SOP8,.25	SOP8,.3	SOP8,.3	SOP8,.3	SOP8,.25	SOP8,.3
封装形状	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
封装形式	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
并行/串行	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL
峰值回流温度（摄氏度）	NOT SPECIFIED	NOT SPECIFIED	260	NOT SPECIFIED	260	NOT SPECIFIED	NOT SPECIFIED	260	260	260
电源	2/5 V	2/5 V	2/5 V	2/5 V	2/5 V	2/5 V	2/5 V	2/5 V	2/5 V	2/5 V
认证状态	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
座面最大高度	1.75 mm	2.5 mm	1.75 mm	2.5 mm	1.75 mm	2.5 mm	2.5 mm	2.5 mm	1.75 mm	2.5 mm
串行总线类型	I2C	I2C	I2C	I2C	I2C	I2C	I2C	I2C	I2C	I2C
最大待机电流	0.000001 A	0.000001 A	0.000001 A	0.000001 A	0.000001 A	0.000001 A	0.000001 A	0.000001 A	0.000001 A	0.000001 A
最大压摆率	0.005 mA	0.005 mA	0.005 mA	0.005 mA	0.005 mA	0.005 mA	0.005 mA	0.005 mA	0.005 mA	0.005 mA
最大供电电压 (Vsup)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
最小供电电压 (Vsup)	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V
标称供电电压 (Vsup)	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V	2.5 V
表面贴装	YES	YES	YES	YES	YES	YES	YES	YES	YES	YES
技术	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
温度等级	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
端子形式	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
端子节距	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm	1.27 mm
端子位置	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
处于峰值回流温度下的最长时间	NOT SPECIFIED	NOT SPECIFIED	30	NOT SPECIFIED	30	NOT SPECIFIED	NOT SPECIFIED	40	40	30
最长写入周期时间 (tWC)	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms	5 ms
写保护	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE	HARDWARE
是否无铅	不含铅	不含铅	不含铅	不含铅	不含铅	不含铅	不含铅	-	不含铅	不含铅
厂商名称	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	-	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)	ST(意法半导体)